chore: version bump

docs: remove duplicate tauri link

.cursor/rules/no-useless-comments.mdc

@@ -0,0 +1,6 @@
+---
+description: 
+globs: 
+alwaysApply: true
+---
+Don't leave comments that don't add value

.cursor/rules/no-useless-duplication.mdc

@@ -0,0 +1,6 @@
+---
+description: 
+globs: 
+alwaysApply: true
+---
+Do not duplicate code unless you have a very good reason to do so. It is important that the same logic is not duplicated multiple times

.cursor/rules/tests-and-linting-after-changes.mdc

@@ -0,0 +1,6 @@
+---
+description: 
+globs: 
+alwaysApply: true
+---
+After your changes, instead of running specific tests or linting specific files, run "pnpm format && pnpm lint && pnpm test"

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,14 +1,14 @@
 # ✨ Pull Request
 
-### 📓 Referenced Issue
+## 📓 Referenced Issue
 
 <!-- Please link the related issue. Use # before the issue number and use the verbs 'fixes', 'resolves' to auto-link it, for eg, Fixes: #<issue-number> -->
 
-### ℹ️ About the PR
+## ℹ️ About the PR
 
 <!-- Please provide a description of your solution if it is not clear in the related issue or if the PR has a breaking change. If there is an interesting topic to discuss or you have questions or there is an issue with Tauri, Rust, or another library that you have used. -->
 
-### 🔄 Type of Change
+## 🔄 Type of Change
 
 <!-- Mark the relevant option with an "x". -->
 
@@ -19,11 +19,11 @@
 - [ ] 🧹 Code cleanup/refactoring
 - [ ] ⚡ Performance improvement
 
-### 🖼️ Testing Scenarios / Screenshots
+## 🖼️ Testing Scenarios / Screenshots
 
 <!-- Please include screenshots or gif to showcase the final output. Also, try to explain the testing you did to validate your change. -->
 
-### ✅ Checklist
+## ✅ Checklist
 
 <!-- Mark completed items with an "x". -->
 
@@ -36,11 +36,11 @@
 - [ ] New and existing unit tests pass locally with my changes
 - [ ] Any dependent changes have been merged and published
 
-### 🧪 How Has This Been Tested?
+## 🧪 How Has This Been Tested?
 
 <!-- Please describe the tests that you ran to verify your changes. -->
 
-### 📱 Platform Testing
+## 📱 Platform Testing
 
 <!-- Which platforms have you tested on? -->
 
@@ -49,6 +49,6 @@
 - [ ] Windows (if applicable)
 - [ ] Linux (if applicable)
 
-### 📋 Additional Notes
+## 📋 Additional Notes
 
 <!-- Any additional information that reviewers should know about this PR. -->

.github/dependabot.yml

@@ -1,28 +1,70 @@
 version: 2
 updates:
-  # Enable version updates for Node.js dependencies
+  # Frontend dependencies (root package.json)
   - package-ecosystem: "npm"
     directory: "/"
     schedule:
       interval: "weekly"
+      day: "saturday"
+      time: "09:00"
     allow:
       - dependency-type: "all"
     groups:
-      all:
+      frontend-dependencies:
         patterns:
           - "*"
     ignore:
       - dependency-name: "eslint"
         versions: ">= 9"
+    commit-message:
+      prefix: "deps"
+      include: "scope"
 
-  # Enable version updates for rust
+  # Nodecar dependencies
+  - package-ecosystem: "npm"
+    directory: "/nodecar"
+    schedule:
+      interval: "weekly"
+      day: "saturday"
+      time: "09:00"
+    allow:
+      - dependency-type: "all"
+    groups:
+      nodecar-dependencies:
+        patterns:
+          - "*"
+    commit-message:
+      prefix: "deps(nodecar)"
+      include: "scope"
+
+  # Rust dependencies
   - package-ecosystem: "cargo"
     directory: "/src-tauri"
     schedule:
       interval: "weekly"
+      day: "saturday"
+      time: "09:00"
     allow:
       - dependency-type: "all"
     groups:
-      all:
+      rust-dependencies:
         patterns:
           - "*"
+    commit-message:
+      prefix: "deps(rust)"
+      include: "scope"
+
+  # GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "saturday"
+      time: "09:00"
+    groups:
+      github-actions:
+        patterns:
+          - "*"
+    commit-message:
+      prefix: "ci"
+      include: "scope"

.github/workflows/dependabot-automerge.yml

@@ -1,34 +1,60 @@
-# Automatically squashes and merges Dependabot dependency upgrades if tests pass
+name: Dependabot Automerge
 
-name: Dependabot Auto-merge
-
-on: pull_request_target
+on:
+  pull_request_target:
+    types: [opened, synchronize, reopened]
 
 permissions:
   pull-requests: write
   contents: write
+  checks: read
 
 jobs:
-  dependabot:
-    runs-on: ubuntu-latest
-
+  security-scan:
+    name: Security Vulnerability Scan
     if: ${{ github.actor == 'dependabot[bot]' }}
+    uses: "google/osv-scanner-action/.github/workflows/osv-scanner-reusable-pr.yml@e69cc6c86b31f1e7e23935bbe7031b50e51082de" # v2.0.2
+    with:
+      scan-args: |-
+        -r
+        --skip-git
+        --lockfile=pnpm-lock.yaml
+        --lockfile=src-tauri/Cargo.lock
+        --lockfile=nodecar/pnpm-lock.yaml
+        ./
+    permissions:
+      security-events: write
+      contents: read
+      actions: read
+
+  lint-js:
+    name: Lint JavaScript/TypeScript
+    if: ${{ github.actor == 'dependabot[bot]' }}
+    uses: ./.github/workflows/lint-js.yml
+    secrets: inherit
+
+  lint-rust:
+    name: Lint Rust
+    if: ${{ github.actor == 'dependabot[bot]' }}
+    uses: ./.github/workflows/lint-rs.yml
+    secrets: inherit
+
+  dependabot-automerge:
+    name: Dependabot Automerge
+    if: ${{ github.actor == 'dependabot[bot]' }}
+    needs: [security-scan, lint-js, lint-rust]
+    runs-on: ubuntu-latest
     steps:
-      - name: Fetch Dependabot metadata
-        id: dependabot-metadata
+      - name: Dependabot metadata
+        id: metadata
         uses: dependabot/fetch-metadata@v2
         with:
           github-token: "${{ secrets.GITHUB_TOKEN }}"
 
-      - name: Approve Dependabot PR
-        run: gh pr review --approve "$PR_URL"
-        env:
-          PR_URL: ${{ github.event.pull_request.html_url }}
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Auto-merge (squash) Dependabot PR
-        if: ${{ steps.dependabot-metadata.outputs.update-type != 'version-update:semver-major' }}
-        run: gh pr merge --auto --squash "$PR_URL"
-        env:
-          PR_URL: ${{ github.event.pull_request.html_url }}
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Auto-merge minor and patch updates
+        uses: ridedott/merge-me-action@v2
+        with:
+          GITHUB_TOKEN: ${{ secrets.SECRET_DEPENDABOT_GITHUB_TOKEN }}
+          PRESET: DEPENDABOT_MINOR
+          MERGE_METHOD: SQUASH
+    timeout-minutes: 10

.github/workflows/lint-js.yml

@@ -13,6 +13,8 @@ on:
     paths-ignore:
       - "src-tauri/**"
       - "README.md"
+      - ".github/workflows/lint-rs.yml"
+      - ".github/workflows/osv.yml"
 
 jobs:
   build:
@@ -49,4 +51,4 @@ jobs:
           pnpm install --frozen-lockfile
 
       - name: Run lint step
-        run: pnpm lint
+        run: pnpm run lint:js

.github/workflows/lint-rs.yml

@@ -12,11 +12,17 @@ on:
   pull_request:
     paths-ignore:
       - "src/**"
+      - "nodecar/**"
       - "package.json"
-      - "package-lock.json"
-      - "yarn.lock"
       - "pnpm-lock.yaml"
+      - "yarn.lock"
       - "README.md"
+      - ".github/workflows/lint-js.yml"
+      - ".github/workflows/osv.yml"
+      - "next.config.js"
+      - "tailwind.config.js"
+      - "tsconfig.json"
+      - "biome.json"
 
 jobs:
   build:
@@ -49,6 +55,9 @@ jobs:
         with:
           components: rustfmt, clippy
 
+      - name: Install cargo-audit
+        run: cargo install cargo-audit
+
       - name: Install dependencies (Ubuntu only)
         if: matrix.os == 'ubuntu-latest'
         run: |
@@ -61,7 +70,7 @@ jobs:
       - name: Install nodecar dependencies
         working-directory: ./nodecar
         run: |
-          pnpm install --ignore-workspace --frozen-lockfile
+          pnpm install --frozen-lockfile
 
       - name: Build nodecar binary
         shell: bash
@@ -70,7 +79,7 @@ jobs:
           if [[ "${{ matrix.os }}" == "ubuntu-latest" ]]; then
             pnpm run build:linux-x64
           elif [[ "${{ matrix.os }}" == "macos-latest" ]]; then
-            pnpm run build:aarch64
+            pnpm run build:mac-aarch64
           elif [[ "${{ matrix.os }}" == "windows-latest" ]]; then
             pnpm run build:win-x64
           fi
@@ -101,3 +110,7 @@ jobs:
       - name: Run Rust unit tests
         run: cargo test
         working-directory: src-tauri
+
+      - name: Run cargo audit security check
+        run: cargo audit
+        working-directory: src-tauri

.github/workflows/osv.yml

@@ -0,0 +1,74 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+# A sample workflow which sets up periodic OSV-Scanner scanning for vulnerabilities,
+# in addition to a PR check which fails if new vulnerabilities are introduced.
+#
+# For more examples and options, including how to ignore specific vulnerabilities,
+# see https://google.github.io/osv-scanner/github-action/
+
+# Security vulnerability scanning for Donut Browser
+# Scans dependencies in package managers (npm/pnpm, Cargo) for known vulnerabilities
+# Runs on schedule and when dependencies change
+
+name: Security Vulnerability Scan
+
+on:
+  pull_request:
+    branches: ["main"]
+    paths:
+      - "package.json"
+      - "pnpm-lock.yaml"
+      - "src-tauri/Cargo.toml"
+      - "src-tauri/Cargo.lock"
+      - "nodecar/package.json"
+      - "nodecar/pnpm-lock.yaml"
+      - ".github/workflows/osv.yml"
+  merge_group:
+    branches: ["main"]
+  schedule:
+    # Run weekly on Tuesdays at 2:20 PM UTC
+    - cron: "20 14 * * 2"
+  push:
+    branches: ["main"]
+    paths:
+      - "package.json"
+      - "pnpm-lock.yaml"
+      - "src-tauri/Cargo.toml"
+      - "src-tauri/Cargo.lock"
+      - "nodecar/package.json"
+      - "nodecar/pnpm-lock.yaml"
+
+permissions:
+  security-events: write
+  contents: read
+  actions: read
+
+jobs:
+  scan-scheduled:
+    name: Scheduled Security Scan
+    if: ${{ github.event_name == 'push' || github.event_name == 'schedule' }}
+    uses: "google/osv-scanner-action/.github/workflows/osv-scanner-reusable.yml@e69cc6c86b31f1e7e23935bbe7031b50e51082de" # v2.0.2
+    with:
+      scan-args: |-
+        -r
+        --skip-git
+        --lockfile=pnpm-lock.yaml
+        --lockfile=src-tauri/Cargo.lock
+        --lockfile=nodecar/pnpm-lock.yaml
+        ./
+
+  scan-pr:
+    name: PR Security Scan
+    if: ${{ github.event_name == 'pull_request' || github.event_name == 'merge_group' }}
+    uses: "google/osv-scanner-action/.github/workflows/osv-scanner-reusable-pr.yml@e69cc6c86b31f1e7e23935bbe7031b50e51082de" # v2.0.2
+    with:
+      scan-args: |-
+        -r
+        --skip-git
+        --lockfile=pnpm-lock.yaml
+        --lockfile=src-tauri/Cargo.lock
+        --lockfile=nodecar/pnpm-lock.yaml
+        ./

.github/workflows/pr-checks.yml

@@ -0,0 +1,50 @@
+name: Pull Request Checks
+
+on:
+  pull_request:
+    branches: ["main"]
+  merge_group:
+    branches: ["main"]
+
+permissions:
+  security-events: write
+  contents: read
+  actions: read
+
+jobs:
+  lint-js:
+    name: Lint JavaScript/TypeScript
+    uses: ./.github/workflows/lint-js.yml
+    secrets: inherit
+
+  lint-rust:
+    name: Lint Rust
+    uses: ./.github/workflows/lint-rs.yml
+    secrets: inherit
+
+  security-scan:
+    name: Security Vulnerability Scan
+    if: ${{ github.event_name == 'pull_request' || github.event_name == 'merge_group' }}
+    uses: "google/osv-scanner-action/.github/workflows/osv-scanner-reusable-pr.yml@e69cc6c86b31f1e7e23935bbe7031b50e51082de" # v2.0.2
+    with:
+      scan-args: |-
+        -r
+        --skip-git
+        --lockfile=pnpm-lock.yaml
+        --lockfile=nodecar/pnpm-lock.yaml
+        --lockfile=src-tauri/Cargo.lock
+        ./
+
+  pr-status:
+    name: PR Status Check
+    runs-on: ubuntu-latest
+    needs: [lint-js, lint-rust, security-scan]
+    if: always()
+    steps:
+      - name: Check all jobs succeeded
+        run: |
+          if [[ "${{ needs.lint-js.result }}" != "success" || "${{ needs.lint-rust.result }}" != "success" || "${{ needs.security-scan.result }}" != "success" ]]; then
+            echo "One or more checks failed"
+            exit 1
+          fi
+          echo "All checks passed!"

.github/workflows/release.yml

@@ -11,6 +11,22 @@ env:
   STABLE_RELEASE: "true"
 
 jobs:
+  security-scan:
+    name: Security Vulnerability Scan
+    uses: "google/osv-scanner-action/.github/workflows/osv-scanner-reusable.yml@e69cc6c86b31f1e7e23935bbe7031b50e51082de" # v2.0.2
+    with:
+      scan-args: |-
+        -r
+        --skip-git
+        --lockfile=pnpm-lock.yaml
+        --lockfile=src-tauri/Cargo.lock
+        --lockfile=nodecar/pnpm-lock.yaml
+        ./
+    permissions:
+      security-events: write
+      contents: read
+      actions: read
+
   lint-js:
     name: Lint JavaScript/TypeScript
     uses: ./.github/workflows/lint-js.yml
@@ -22,7 +38,7 @@ jobs:
     secrets: inherit
 
   release:
-    needs: [lint-js, lint-rust]
+    needs: [security-scan, lint-js, lint-rust]
     permissions:
       contents: write
     strategy:
@@ -34,26 +50,26 @@ jobs:
             arch: "aarch64"
             target: "aarch64-apple-darwin"
             pkg_target: "latest-macos-arm64"
-            nodecar_script: "build:aarch64"
+            nodecar_script: "build:mac-aarch64"
           - platform: "macos-latest"
             args: "--target x86_64-apple-darwin"
             arch: "x86_64"
             target: "x86_64-apple-darwin"
             pkg_target: "latest-macos-x64"
-            nodecar_script: "build:x86_64"
+            nodecar_script: "build:mac-x86_64"
+          - platform: "ubuntu-22.04"
+            args: "--target x86_64-unknown-linux-gnu"
+            arch: "x86_64"
+            target: "x86_64-unknown-linux-gnu"
+            pkg_target: "latest-linux-x64"
+            nodecar_script: "build:linux-x64"
+          - platform: "ubuntu-22.04-arm"
+            args: "--target aarch64-unknown-linux-gnu"
+            arch: "aarch64"
+            target: "aarch64-unknown-linux-gnu"
+            pkg_target: "latest-linux-arm64"
+            nodecar_script: "build:linux-arm64"
           # Future platforms can be added here:
-          # - platform: "ubuntu-20.04"
-          #   args: "--target x86_64-unknown-linux-gnu"
-          #   arch: "x86_64"
-          #   target: "x86_64-unknown-linux-gnu"
-          #   pkg_target: "latest-linux-x64"
-          #   nodecar_script: "build:linux-x64"
-          # - platform: "ubuntu-20.04"
-          #   args: "--target aarch64-unknown-linux-gnu"
-          #   arch: "aarch64"
-          #   target: "aarch64-unknown-linux-gnu"
-          #   pkg_target: "latest-linux-arm64"
-          #   nodecar_script: "build:linux-arm64"
           # - platform: "windows-latest"
           #   args: "--target x86_64-pc-windows-msvc"
           #   arch: "x86_64"
@@ -85,10 +101,10 @@ jobs:
           targets: ${{ matrix.target }}
 
       - name: Install dependencies (Ubuntu only)
-        if: matrix.platform == 'ubuntu-20.04'
+        if: matrix.platform == 'ubuntu-22.04' || matrix.platform == 'ubuntu-22.04-arm'
         run: |
           sudo apt-get update
-          sudo apt-get install -y libwebkit2gtk-4.1-dev libgtk-3-dev libayatana-appindicator3-dev librsvg2-dev
+          sudo apt-get install -y libwebkit2gtk-4.1-dev libgtk-3-dev libayatana-appindicator3-dev librsvg2-dev pkg-config xdg-utils
 
       - name: Rust cache
         uses: swatinem/rust-cache@v2
@@ -101,7 +117,7 @@ jobs:
       - name: Install nodecar dependencies
         working-directory: ./nodecar
         run: |
-          pnpm install --ignore-workspace --frozen-lockfile
+          pnpm install --frozen-lockfile
 
       - name: Build nodecar sidecar
         shell: bash
@@ -131,6 +147,6 @@ jobs:
           tagName: ${{ github.ref_name }}
           releaseName: "Donut Browser ${{ github.ref_name }}"
           releaseBody: "See the assets to download this version and install."
-          releaseDraft: true
+          releaseDraft: false
           prerelease: false
           args: ${{ matrix.args }}

.github/workflows/rolling-release.yml

@@ -10,6 +10,22 @@ env:
   TAURI_SIGNING_PRIVATE_KEY_PASSWORD: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY_PASSWORD }}
 
 jobs:
+  security-scan:
+    name: Security Vulnerability Scan
+    uses: "google/osv-scanner-action/.github/workflows/osv-scanner-reusable.yml@e69cc6c86b31f1e7e23935bbe7031b50e51082de" # v2.0.2
+    with:
+      scan-args: |-
+        -r
+        --skip-git
+        --lockfile=pnpm-lock.yaml
+        --lockfile=src-tauri/Cargo.lock
+        --lockfile=nodecar/pnpm-lock.yaml
+        ./
+    permissions:
+      security-events: write
+      contents: read
+      actions: read
+
   lint-js:
     name: Lint JavaScript/TypeScript
     uses: ./.github/workflows/lint-js.yml
@@ -21,7 +37,7 @@ jobs:
     secrets: inherit
 
   rolling-release:
-    needs: [lint-js, lint-rust]
+    needs: [security-scan, lint-js, lint-rust]
     permissions:
       contents: write
     strategy:
@@ -33,13 +49,25 @@ jobs:
             arch: "aarch64"
             target: "aarch64-apple-darwin"
             pkg_target: "latest-macos-arm64"
-            nodecar_script: "build:aarch64"
+            nodecar_script: "build:mac-aarch64"
           - platform: "macos-latest"
             args: "--target x86_64-apple-darwin"
             arch: "x86_64"
             target: "x86_64-apple-darwin"
             pkg_target: "latest-macos-x64"
-            nodecar_script: "build:x86_64"
+            nodecar_script: "build:mac-x86_64"
+          - platform: "ubuntu-22.04"
+            args: "--target x86_64-unknown-linux-gnu"
+            arch: "x86_64"
+            target: "x86_64-unknown-linux-gnu"
+            pkg_target: "latest-linux-x64"
+            nodecar_script: "build:linux-x64"
+          - platform: "ubuntu-22.04-arm"
+            args: "--target aarch64-unknown-linux-gnu"
+            arch: "aarch64"
+            target: "aarch64-unknown-linux-gnu"
+            pkg_target: "latest-linux-arm64"
+            nodecar_script: "build:linux-arm64"
 
     runs-on: ${{ matrix.platform }}
     steps:
@@ -58,6 +86,12 @@ jobs:
         with:
           targets: ${{ matrix.target }}
 
+      - name: Install dependencies (Ubuntu only)
+        if: matrix.platform == 'ubuntu-22.04' || matrix.platform == 'ubuntu-22.04-arm'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libwebkit2gtk-4.1-dev libgtk-3-dev libayatana-appindicator3-dev librsvg2-dev pkg-config xdg-utils
+
       - name: Rust cache
         uses: swatinem/rust-cache@v2
         with:
@@ -69,7 +103,7 @@ jobs:
       - name: Install nodecar dependencies
         working-directory: ./nodecar
         run: |
-          pnpm install --ignore-workspace --frozen-lockfile
+          pnpm install --frozen-lockfile
 
       - name: Build nodecar sidecar
         shell: bash
@@ -81,7 +115,11 @@ jobs:
         shell: bash
         run: |
           mkdir -p src-tauri/binaries
-          cp nodecar/dist/nodecar src-tauri/binaries/nodecar-${{ matrix.target }}
+          if [[ "${{ matrix.platform }}" == "windows-latest" ]]; then
+            cp nodecar/dist/nodecar.exe src-tauri/binaries/nodecar-${{ matrix.target }}.exe
+          else
+            cp nodecar/dist/nodecar src-tauri/binaries/nodecar-${{ matrix.target }}
+          fi
 
       - name: Build frontend
         run: pnpm build
@@ -94,6 +132,7 @@ jobs:
         uses: tauri-apps/tauri-action@v0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          BUILD_TAG: "nightly-${{ steps.commit.outputs.hash }}"
           GITHUB_REF_NAME: "nightly-${{ steps.commit.outputs.hash }}"
           GITHUB_SHA: ${{ github.sha }}
         with:

.gitignore

@@ -5,6 +5,10 @@
 /.pnp
 .pnp.js
 
+# npm/yarn lock files (project uses pnpm only)
+**/package-lock.json
+**/yarn.lock
+
 # testing
 /coverage
 
@@ -30,8 +34,8 @@ yarn-error.log*
 .pnpm-debug.log*
 
 # nodecar
-nodecar/dist
-nodecar/node_modules
+**/dist
+**/node_modules
 
 # local env files
 .env*.local
@@ -42,4 +46,7 @@ nodecar/node_modules
 # typescript
 *.tsbuildinfo
 
+# eslint
+.eslintcache
+
 !**/.gitkeep

.husky/pre-commit

@@ -1 +1 @@
-pnpm lint-staged
+pnpm exec lint-staged

.node-version

@@ -1,2 +1,2 @@
-22
+23
 

.nvmrc

@@ -0,0 +1 @@
+23 

.vscode/extensions.json

@@ -0,0 +1,11 @@
+{
+  "recommendations": [
+    "biomejs.biome",
+    "streetsidesoftware.code-spell-checker",
+    "usernamehw.errorlens",
+    "heybourn.headwind",
+    "yoavbls.pretty-ts-errors",
+    "rust-lang.rust-analyzer",
+    "bradlc.vscode-tailwindcss"
+  ]
+}

.vscode/settings.json

@@ -1,23 +1,73 @@
 {
   "cSpell.words": [
+    "appimage",
+    "appindicator",
+    "applescript",
+    "autoconfig",
     "autologin",
+    "biomejs",
+    "cdylib",
     "CFURL",
+    "checkin",
     "clippy",
+    "codegen",
+    "devedition",
     "donutbrowser",
+    "dpkg",
+    "dtolnay",
+    "elif",
+    "esbuild",
+    "eslintcache",
+    "frontmost",
+    "gifs",
+    "gsettings",
+    "icns",
+    "idletime",
+    "KHTML",
     "launchservices",
+    "libatk",
+    "libayatana",
+    "libcairo",
+    "libgdk",
+    "libglib",
+    "libpango",
+    "librsvg",
+    "libwebkit",
     "mountpoint",
+    "msvc",
+    "msys",
+    "Mullvad",
     "nodecar",
     "ntlm",
+    "objc",
+    "osascript",
+    "pixbuf",
+    "plasmohq",
     "propertylist",
+    "reqwest",
+    "ridedott",
     "rlib",
     "rustc",
+    "SARIF",
     "serde",
     "shadcn",
     "signon",
+    "sonner",
     "sspi",
     "staticlib",
+    "subdirs",
+    "swatinem",
     "sysinfo",
     "systempreferences",
-    "turbopack"
+    "tauri",
+    "titlebar",
+    "Torbrowser",
+    "turbopack",
+    "unlisten",
+    "unrs",
+    "vercel",
+    "wiremock",
+    "xattr",
+    "zhom"
   ]
 }

AI_INSTRUCTIONS.md

@@ -0,0 +1,5 @@
+# Instructions for AI Agents
+
+- If you want to run tests, only ever run them as "pnpm format && pnpm lint && pnpm test".
+- Don't leave comments that don't add value
+- Do not duplicate code unless you have a very good reason to do so. It is important that the same logic is not duplicated multiple times

CONTRIBUTING.md

@@ -50,7 +50,7 @@ After having the above dependencies installed, proceed through the following ste
 
    ```bash
    cd nodecar
-   pnpm install --ignore-workspace --frozen-lockfile
+   pnpm install --frozen-lockfile
    cd ..
    ```
 

README.md

@@ -6,15 +6,15 @@
 <br>
 
 <p align="center">
-  <a href="https://github.com/zhom/donutbrowser/releases/latest" target="_blank"><img alt="GitHub release" src="https://img.shields.io/github/v/release/zhom/donutbrowser">
+  <a style="text-decoration: none;" href="https://github.com/zhom/donutbrowser/releases/latest" target="_blank"><img alt="GitHub release" src="https://img.shields.io/github/v/release/zhom/donutbrowser">
   </a>
-  <a href="https://github.com/zhom/donutbrowser/issues" target="_blank">
+  <a style="text-decoration: none;" href="https://github.com/zhom/donutbrowser/issues" target="_blank">
     <img src="https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat" alt="PRs Welcome">
   </a>
-  <a href="https://github.com/zhom/donutbrowser/blob/main/LICENSE" target="_blank">
+  <a style="text-decoration: none;" href="https://github.com/zhom/donutbrowser/blob/main/LICENSE" target="_blank">
     <img src="https://img.shields.io/badge/license-AGPL--3.0-blue.svg" alt="License">
   </a>
-  <a href="https://github.com/zhom/donutbrowser/stargazers" target="_blank">
+  <a style="text-decoration: none;" href="https://github.com/zhom/donutbrowser/stargazers" target="_blank">
     <img src="https://img.shields.io/github/stars/zhom/donutbrowser?style=social" alt="GitHub stars">
   </a>
 </p>
@@ -25,15 +25,26 @@
 
 ![Donut Browser Preview](assets/preview.png)
 
+## Features
+
+- Create unlimited number of local browser profiles completely isolated from each other
+- Proxy support with basic auth for all browsers except for TOR Browser
+- Import profiles from your existing browsers
+- Automatic updates both for browsers and for the app itself
+- Set Donut Browser as your default browser to control in which profile to open links
+
 ## Download
 
+> As of right now, the app is not signed by Apple. You need to have Gatekeeper disabled to run it. The app automatically checks for updates on each launch.
+> For Linux, .deb and .rpm packages are available as well as standalone .AppImage files.
+
 The app can be downloaded from the [releases page](https://github.com/zhom/donutbrowser/releases/latest).
 
 ## Supported Platforms
 
 - ✅ **macOS** (Intel & Apple Silicon)
+- ✅ **Linux** (x64 & arm64)
 - 🔄 **Windows** (Planned)
-- 🔄 **Linux** (Planned)
 
 ## Development
 
@@ -52,6 +63,20 @@ Have questions or want to contribute? We'd love to hear from you!
 - **Issues**: [GitHub Issues](https://github.com/zhom/donutbrowser/issues)
 - **Discussions**: [GitHub Discussions](https://github.com/zhom/donutbrowser/discussions)
 
+## Star History
+
+<a href="https://www.star-history.com/#zhom/donutbrowser&Date">
+ <picture>
+   <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/svg?repos=zhom/donutbrowser&type=Date&theme=dark" />
+   <source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/svg?repos=zhom/donutbrowser&type=Date" />
+   <img alt="Star History Chart" src="https://api.star-history.com/svg?repos=zhom/donutbrowser&type=Date" />
+ </picture>
+</a>
+
+## Contact
+
+Have an urgent question or want to report a security vulnerability? Send an email to contact at donutbrowser dot com and we'll get back to you as fast as possible.
+
 ## License
 
 This project is licensed under the AGPL-3.0 License - see the [LICENSE](LICENSE) file for details.

SECURITY.md

@@ -0,0 +1,40 @@
+# Security Policy
+
+## Reporting Security Issues
+
+Thanks for helping make Donut Browser safe for everyone! ❤️
+
+We take the security of Donut Browser seriously. If you believe you have found a security vulnerability in Donut Browser, please report it to us through coordinated disclosure.
+
+**Please do not report security vulnerabilities through public GitHub issues, discussions, or pull requests.**
+
+Instead, please send an email to **contact at donutbrowser dot com** with the subject line "Security Vulnerability Report".
+
+Please include as much of the information listed below as you can to help us better understand and resolve the issue:
+
+- The type of issue (e.g., buffer overflow, injection attack, privilege escalation, or cross-site scripting)
+- Full paths of source file(s) related to the manifestation of the issue
+- The location of the affected source code (tag/branch/commit or direct URL)
+- Any special configuration required to reproduce the issue
+- Step-by-step instructions to reproduce the issue
+- Proof-of-concept or exploit code (if possible)
+- Impact of the issue, including how an attacker might exploit the issue
+- Your assessment of the severity level
+
+This information will help us triage your report more quickly.
+
+## What to Expect
+
+- **Response Time**: We will acknowledge receipt of your vulnerability report within 72 hours.
+- **Investigation**: We will investigate the issue and provide you with updates on our progress.
+- **Resolution**: We aim to resolve critical security issues as fast as possible, but no longer than in 30 days after the initial report.
+- **Disclosure**: We will coordinate with you on the timing of any public disclosure.
+
+## Contact
+
+For urgent security matters, please contact us at **contact at donutbrowser dot com**.
+
+For general questions about this security policy, you can also reach out through:
+
+- [GitHub Issues](https://github.com/zhom/donutbrowser/issues) (for non-security questions only)
+- [GitHub Discussions](https://github.com/zhom/donutbrowser/discussions)

components.json

@@ -4,7 +4,7 @@
   "rsc": true,
   "tsx": true,
   "tailwind": {
-    "config": "",
+    "config": "tailwind.config.js",
     "css": "src/styles/globals.css",
     "baseColor": "zinc",
     "cssVariables": true,
@@ -18,4 +18,4 @@
     "hooks": "@/hooks"
   },
   "iconLibrary": "lucide"
-}
+}

nodecar/copy-binary.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# Determine file extension based on platform
+if [[ "$OSTYPE" == "msys" || "$OSTYPE" == "win32" || "$OSTYPE" == "cygwin" ]]; then
+    EXT=".exe"
+else
+    EXT=""
+fi
+
+# If architecture provided in the command line, use it to rename the binary in TARGET_TRIPLE
+if [ -n "$1" ]; then
+    TARGET_TRIPLE="$1"
+else
+    RUST_INFO=$(rustc -vV)
+    TARGET_TRIPLE=$(echo "$RUST_INFO" | grep -o 'host: [^ ]*' | cut -d' ' -f2)
+fi
+
+# Check if target triple was found
+if [ -z "$TARGET_TRIPLE" ]; then
+    echo "Failed to determine platform target triple" >&2
+    exit 1
+fi
+
+# Copy the file
+cp "dist/nodecar${EXT}" "../src-tauri/binaries/nodecar-${TARGET_TRIPLE}${EXT}"

nodecar/package.json

@@ -7,26 +7,26 @@
     "watch": "nodemon --exec ts-node --esm ./src/index.ts --watch src",
     "dev": "node --loader ts-node/esm ./src/index.ts",
     "start": "node --loader ts-node/esm ./src/index.ts",
-    "build": "tsc && pkg ./dist/index.js --targets latest-macos-arm64 --output dist/nodecar",
-    "build:aarch64": "tsc && pkg ./dist/index.js --targets latest-macos-arm64 --output dist/nodecar",
-    "build:x86_64": "tsc && pkg ./dist/index.js --targets latest-macos-x64 --output dist/nodecar",
-    "build:linux-x64": "tsc && pkg ./dist/index.js --targets latest-linux-x64 --output dist/nodecar",
-    "build:linux-arm64": "tsc && pkg ./dist/index.js --targets latest-linux-arm64 --output dist/nodecar",
-    "build:win-x64": "tsc && pkg ./dist/index.js --targets latest-win-x64 --output dist/nodecar",
-    "build:win-arm64": "tsc && pkg ./dist/index.js --targets latest-win-arm64 --output dist/nodecar"
+    "rename-binary": "sh ./copy-binary.sh",
+    "build": "tsc && pkg ./dist/index.js --targets latest-macos-arm64 --output dist/nodecar && pnpm rename-binary",
+    "build:mac-aarch64": "tsc && pkg ./dist/index.js --targets latest-macos-arm64 --output dist/nodecar && pnpm rename-binary",
+    "build:mac-x86_64": "tsc && pkg ./dist/index.js --targets latest-macos-x64 --output dist/nodecar && pnpm rename-binary",
+    "build:linux-x64": "tsc && pkg ./dist/index.js --targets latest-linux-x64 --output dist/nodecar && pnpm rename-binary",
+    "build:linux-arm64": "tsc && pkg ./dist/index.js --targets latest-linux-arm64 --output dist/nodecar && pnpm rename-binary",
+    "build:win-x64": "tsc && pkg ./dist/index.js --targets latest-win-x64 --output dist/nodecar && pnpm rename-binary",
+    "build:win-arm64": "tsc && pkg ./dist/index.js --targets latest-win-arm64 --output dist/nodecar && pnpm rename-binary"
   },
   "keywords": [],
   "author": "",
-  "license": "ISC",
-  "packageManager": "pnpm@10.6.1",
+  "license": "AGPL-3.0",
   "dependencies": {
-    "@types/node": "^22.15.17",
-    "@yao-pkg/pkg": "^6.4.1",
-    "commander": "^13.1.0",
+    "@types/node": "^22.15.30",
+    "@yao-pkg/pkg": "^6.5.1",
+    "commander": "^14.0.0",
     "dotenv": "^16.5.0",
     "get-port": "^7.1.0",
     "nodemon": "^3.1.10",
-    "proxy-chain": "^2.5.8",
+    "proxy-chain": "^2.5.9",
     "ts-node": "^10.9.2",
     "typescript": "^5.8.3"
   }

nodecar/rename-binary.js

@@ -1,14 +0,0 @@
-import { execSync } from "child_process";
-import fs from "fs";
-
-const ext = process.platform === "win32" ? ".exe" : "";
-
-const rustInfo = execSync("rustc -vV");
-const targetTriple = /host: (\S+)/g.exec(rustInfo)[1];
-if (!targetTriple) {
-  console.error("Failed to determine platform target triple");
-}
-fs.renameSync(
-  `dist/nodecar${ext}`,
-  `../src-tauri/binaries/nodecar-${targetTriple}${ext}`
-);

nodecar/src/index.ts

@@ -48,8 +48,8 @@ program
             ignoreProxyCertificate: options.ignoreCertificate,
           });
           console.log(JSON.stringify(config));
-        } catch (error: any) {
-          console.error(`Failed to start proxy: ${error.message}`);
+        } catch (error: unknown) {
+          console.error(`Failed to start proxy: ${JSON.stringify(error)}`);
         }
       } else if (action === "stop") {
         if (options.id) {

nodecar/src/proxy-runner.ts

@@ -1,5 +1,5 @@
-import { spawn } from "child_process";
-import path from "path";
+import { spawn } from "node:child_process";
+import path from "node:path";
 import getPort from "get-port";
 import {
   type ProxyConfig,

nodecar/src/proxy-storage.ts

@@ -1,6 +1,6 @@
-import fs from "fs";
-import path from "path";
-import os from "os";
+import fs from "node:fs";
+import path from "node:path";
+import os from "node:os";
 
 // Define the proxy configuration type
 export interface ProxyConfig {

package.json

@@ -1,21 +1,26 @@
 {
   "name": "donutbrowser",
   "private": true,
-  "version": "0.1.0",
+  "license": "AGPL-3.0",
+  "version": "0.3.2",
   "type": "module",
   "scripts": {
     "dev": "next dev --turbopack",
     "build": "next build",
     "start": "next start",
-    "lint": "biome check src/ && tsc --noEmit && next lint",
+    "test": "pnpm test:rust",
+    "test:rust": "cd src-tauri && cargo test",
+    "lint": "pnpm lint:js && pnpm lint:rust",
+    "lint:js": "biome check src/ && tsc --noEmit && next lint",
     "lint:rust": "cd src-tauri && cargo clippy --all-targets --all-features -- -D warnings -D clippy::all && cargo fmt --all",
     "tauri": "tauri",
     "shadcn:add": "pnpm dlx shadcn@latest add",
-    "prepare": "husky",
-    "format:js": "biome check src/ --fix",
+    "prepare": "husky && husky install",
     "format:rust": "cd src-tauri && cargo clippy --fix --allow-dirty --all-targets --all-features -- -D warnings -D clippy::all && cargo fmt --all",
-    "format:biome": "biome check src/ --fix",
-    "format": "pnpm format:js && pnpm format:rust"
+    "format:js": "biome check src/ --fix",
+    "format": "pnpm format:js && pnpm format:rust",
+    "cargo": "cd src-tauri && cargo",
+    "check-unused-commands": "cd src-tauri && cargo run --bin check_unused_commands"
   },
   "dependencies": {
     "@radix-ui/react-checkbox": "^1.3.2",
@@ -30,46 +35,48 @@
     "@radix-ui/react-tooltip": "^1.2.7",
     "@tanstack/react-table": "^8.21.3",
     "@tauri-apps/api": "^2.5.0",
+    "@tauri-apps/plugin-dialog": "^2.2.2",
     "@tauri-apps/plugin-fs": "~2.3.0",
     "@tauri-apps/plugin-opener": "^2.2.7",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "cmdk": "^1.1.1",
-    "next": "^15.3.2",
+    "next": "^15.3.3",
     "next-themes": "^0.4.6",
     "react": "^19.1.0",
     "react-dom": "^19.1.0",
     "react-icons": "^5.5.0",
-    "sonner": "^2.0.3",
+    "sonner": "^2.0.5",
     "tailwind-merge": "^3.3.0"
   },
   "devDependencies": {
     "@biomejs/biome": "1.9.4",
     "@eslint/eslintrc": "^3.3.1",
-    "@eslint/js": "^9.27.0",
-    "@next/eslint-plugin-next": "^15.3.2",
-    "@tailwindcss/postcss": "^4.1.7",
+    "@eslint/js": "^9.28.0",
+    "@next/eslint-plugin-next": "^15.3.3",
+    "@tailwindcss/postcss": "^4.1.8",
     "@tauri-apps/cli": "^2.5.0",
-    "@types/node": "^22.15.21",
-    "@types/react": "^19.1.5",
-    "@types/react-dom": "^19.1.5",
-    "@typescript-eslint/eslint-plugin": "^8.32.1",
-    "@typescript-eslint/parser": "^8.32.1",
-    "@vitejs/plugin-react": "^4.5.0",
-    "eslint": "^9.27.0",
-    "eslint-config-next": "^15.3.2",
+    "@types/node": "^22.15.30",
+    "@types/react": "^19.1.6",
+    "@types/react-dom": "^19.1.6",
+    "@typescript-eslint/eslint-plugin": "^8.33.1",
+    "@typescript-eslint/parser": "^8.33.1",
+    "@vitejs/plugin-react": "^4.5.1",
+    "eslint": "^9.28.0",
+    "eslint-config-next": "^15.3.3",
     "eslint-plugin-react-hooks": "^5.2.0",
     "husky": "^9.1.7",
-    "lint-staged": "^15.3.0",
-    "tailwindcss": "^4.1.7",
-    "tw-animate-css": "^1.3.0",
+    "lint-staged": "^16.1.0",
+    "tailwindcss": "^4.1.8",
+    "tw-animate-css": "^1.3.4",
     "typescript": "~5.8.3",
-    "typescript-eslint": "^8.32.1"
+    "typescript-eslint": "^8.33.1"
   },
-  "packageManager": "pnpm@10.11.0+sha512.6540583f41cc5f628eb3d9773ecee802f4f9ef9923cc45b69890fb47991d4b092964694ec3a4f738a420c918a333062c8b925d312f42e4f0c263eb603551f977",
+  "packageManager": "pnpm@10.11.1",
   "lint-staged": {
     "src/**/*.{js,jsx,ts,tsx,json,css,md}": [
-      "biome check --fix"
+      "biome check --fix",
+      "eslint --cache --fix"
     ],
     "src-tauri/**/*.rs": [
       "cd src-tauri && cargo fmt --all",

pnpm-workspace.yaml

@@ -1,5 +1,9 @@
+packages:
+  - "nodecar"
+
 onlyBuiltDependencies:
-  - '@biomejs/biome'
-  - '@tailwindcss/oxide'
+  - "@biomejs/biome"
+  - "@tailwindcss/oxide"
   - esbuild
   - sharp
+  - unrs-resolver

src-tauri/Cargo.toml

@@ -1,9 +1,10 @@
 [package]
 name = "donutbrowser"
-version = "0.1.0"
-description = "A Tauri App"
+version = "0.3.2"
+description = "Simple Yet Powerful Browser Orchestrator"
 authors = ["zhom@github"]
 edition = "2021"
+default-run = "donutbrowser"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
@@ -25,6 +26,7 @@ tauri-plugin-opener = "2"
 tauri-plugin-fs = "2"
 tauri-plugin-shell = "2"
 tauri-plugin-deep-link = "2"
+tauri-plugin-dialog = "2"
 directories = "6"
 reqwest = { version = "0.12", features = ["json", "stream"] }
 tokio = { version = "1", features = ["full"] }
@@ -37,6 +39,8 @@ futures-util = "0.3"
 
 [target.'cfg(target_os = "macos")'.dependencies]
 core-foundation="0.10"
+objc2 = "0.6.1"
+objc2-app-kit = { version = "0.3.1", features = ["NSWindow"] }
 
 [dev-dependencies]
 tempfile = "3.13.0"

src-tauri/Info.plist

@@ -13,7 +13,7 @@
 	<key>CFBundleVersion</key>
 	<string>1</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.1.0</string>
+	<string>0.3.2</string>
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleIconFile</key>

src-tauri/build.rs

@@ -6,8 +6,11 @@ fn main() {
   }
 
   // Inject build version based on environment variables set by CI
-  if let Ok(tag_name) = std::env::var("GITHUB_REF_NAME") {
-    // This is set by GitHub Actions to the tag name (e.g., "v1.0.0" or "nightly-abc123")
+  if let Ok(build_tag) = std::env::var("BUILD_TAG") {
+    // Custom BUILD_TAG takes highest priority (used for nightly builds)
+    println!("cargo:rustc-env=BUILD_VERSION={build_tag}");
+  } else if let Ok(tag_name) = std::env::var("GITHUB_REF_NAME") {
+    // This is set by GitHub Actions to the tag name (e.g., "v1.0.0")
     println!("cargo:rustc-env=BUILD_VERSION={tag_name}");
   } else if std::env::var("STABLE_RELEASE").is_ok() {
     // Fallback for stable releases - use CARGO_PKG_VERSION with 'v' prefix

src-tauri/capabilities/default.json

@@ -6,6 +6,11 @@
   "permissions": [
     "core:default",
     "core:event:default",
+    "core:window:default",
+    "core:window:allow-start-dragging",
+    "core:window:allow-close",
+    "core:window:allow-minimize",
+    "core:window:allow-toggle-maximize",
     "opener:default",
     "fs:default",
     "shell:allow-execute",
@@ -13,6 +18,8 @@
     "shell:allow-open",
     "shell:allow-spawn",
     "shell:allow-stdin-write",
-    "deep-link:default"
+    "deep-link:default",
+    "dialog:default",
+    "dialog:allow-open"
   ]
 }

src-tauri/donutbrowser.desktop

@@ -0,0 +1,13 @@
+[Desktop Entry]
+Version=1.0
+Type=Application
+Name=Donut Browser
+Comment=Simple Yet Powerful Browser Orchestrator
+Exec=donutbrowser %u
+Icon=donutbrowser
+StartupNotify=true
+NoDisplay=false
+Categories=Network;WebBrowser;Productivity;
+MimeType=x-scheme-handler/http;x-scheme-handler/https;text/html;application/xhtml+xml;
+StartupWMClass=donutbrowser
+Keywords=browser;web;internet;productivity;

src-tauri/src/api_client.rs

@@ -36,12 +36,16 @@ impl VersionComponent {
     let version = version.trim();
 
     // Handle special case for Zen Browser twilight releases
-    if version.to_lowercase().contains("twilight") {
+    if version.to_lowercase() == "twilight" {
+      // Pure twilight release without base version
       return VersionComponent {
-        major: u32::MAX,
-        minor: u32::MAX,
-        patch: u32::MAX,
-        pre_release: None,
+        major: 999, // High major version to indicate it's a rolling release
+        minor: 0,
+        patch: 0,
+        pre_release: Some(PreRelease {
+          kind: PreReleaseKind::Alpha,
+          number: Some(999), // High number to indicate it's a rolling release
+        }),
       };
     }
 
@@ -140,6 +144,38 @@ impl Ord for VersionComponent {
   fn cmp(&self, other: &Self) -> std::cmp::Ordering {
     use std::cmp::Ordering;
 
+    // Check for twilight versions
+    let self_is_twilight = self
+      .pre_release
+      .as_ref()
+      .map(|pr| pr.kind == PreReleaseKind::Alpha && pr.number == Some(999))
+      .unwrap_or(false);
+    let other_is_twilight = other
+      .pre_release
+      .as_ref()
+      .map(|pr| pr.kind == PreReleaseKind::Alpha && pr.number == Some(999))
+      .unwrap_or(false);
+
+    // If one is twilight and the other isn't, twilight always has priority
+    if self_is_twilight && !other_is_twilight {
+      return Ordering::Greater; // twilight > non-twilight
+    }
+    if !self_is_twilight && other_is_twilight {
+      return Ordering::Less; // non-twilight < twilight
+    }
+
+    // Both are twilight or both are not twilight - use normal comparison
+    match (self_is_twilight, other_is_twilight) {
+      (true, true) => {
+        // Both are twilight, compare by base version
+        return (self.major, self.minor, self.patch).cmp(&(other.major, other.minor, other.patch));
+      }
+      (false, false) => {
+        // Neither is twilight, continue with normal comparison
+      }
+      _ => unreachable!(), // Already handled above
+    }
+
     // Compare major.minor.patch first
     match (self.major, self.minor, self.patch).cmp(&(other.major, other.minor, other.patch)) {
       Ordering::Equal => {
@@ -188,11 +224,48 @@ pub fn sort_github_releases(releases: &mut [GithubRelease]) {
   });
 }
 
-pub fn is_alpha_version(version: &str) -> bool {
+pub fn is_nightly_version(version: &str) -> bool {
   let version_comp = VersionComponent::parse(version);
   version_comp.pre_release.is_some()
 }
 
+/// Centralized function to determine if a browser version/release is nightly/prerelease
+/// This is the single source of truth for nightly detection across the entire codebase
+pub fn is_browser_version_nightly(
+  browser: &str,
+  version: &str,
+  release_name: Option<&str>,
+) -> bool {
+  match browser {
+    "zen" => {
+      // For Zen Browser, only "twilight" is considered nightly
+      version.to_lowercase() == "twilight"
+    }
+    "brave" => {
+      // For Brave Browser, only releases titled "Release" are stable, everything else is nightly
+      if let Some(name) = release_name {
+        !name.starts_with("Release")
+      } else {
+        true
+      }
+    }
+    "firefox" | "firefox-developer" => {
+      // For Firefox, use the category from the API response to determine stability
+      // This will be handled in the API parsing, so this fallback is for cached versions
+      is_nightly_version(version)
+    }
+    "mullvad-browser" | "tor-browser" => is_nightly_version(version),
+    "chromium" => {
+      // Chromium builds are generally stable snapshots
+      false
+    }
+    _ => {
+      // Default fallback
+      is_nightly_version(version)
+    }
+  }
+}
+
 #[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct FirefoxRelease {
   pub build_number: u32,
@@ -214,7 +287,6 @@ pub struct BrowserRelease {
   pub version: String,
   pub date: String,
   pub is_prerelease: bool,
-  pub download_url: Option<String>,
 }
 
 #[derive(Debug, Serialize, Deserialize)]
@@ -236,7 +308,6 @@ pub struct ApiClient {
   github_api_base: String,
   chromium_api_base: String,
   tor_archive_base: String,
-  mozilla_download_base: String,
 }
 
 impl ApiClient {
@@ -249,7 +320,6 @@ impl ApiClient {
       chromium_api_base: "https://commondatastorage.googleapis.com/chromium-browser-snapshots"
         .to_string(),
       tor_archive_base: "https://archive.torproject.org/tor-package-archive/torbrowser".to_string(),
-      mozilla_download_base: "https://download.mozilla.org".to_string(),
     }
   }
 
@@ -260,7 +330,6 @@ impl ApiClient {
     github_api_base: String,
     chromium_api_base: String,
     tor_archive_base: String,
-    mozilla_download_base: String,
   ) -> Self {
     Self {
       client: Client::new(),
@@ -269,11 +338,10 @@ impl ApiClient {
       github_api_base,
       chromium_api_base,
       tor_archive_base,
-      mozilla_download_base,
     }
   }
 
-  fn get_cache_dir() -> Result<PathBuf, Box<dyn std::error::Error>> {
+  fn get_cache_dir() -> Result<PathBuf, Box<dyn std::error::Error + Send + Sync>> {
     let base_dirs = BaseDirs::new().ok_or("Failed to get base directories")?;
     let app_name = if cfg!(debug_assertions) {
       "DonutBrowserDev"
@@ -343,7 +411,7 @@ impl ApiClient {
     &self,
     browser: &str,
     versions: &[String],
-  ) -> Result<(), Box<dyn std::error::Error>> {
+  ) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
     let cache_dir = Self::get_cache_dir()?;
     let cache_file = cache_dir.join(format!("{browser}_versions.json"));
 
@@ -378,7 +446,7 @@ impl ApiClient {
     &self,
     browser: &str,
     releases: &[GithubRelease],
-  ) -> Result<(), Box<dyn std::error::Error>> {
+  ) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
     let cache_dir = Self::get_cache_dir()?;
     let cache_file = cache_dir.join(format!("{browser}_github.json"));
 
@@ -407,11 +475,7 @@ impl ApiClient {
               BrowserRelease {
                 version: version.clone(),
                 date: "".to_string(), // Cache doesn't store dates
-                is_prerelease: is_alpha_version(&version),
-                download_url: Some(format!(
-                  "{}/?product=firefox-{}&os=osx&lang=en-US",
-                  self.mozilla_download_base, version
-                )),
+                is_prerelease: is_browser_version_nightly("firefox", &version, None),
               }
             })
             .collect(),
@@ -425,7 +489,7 @@ impl ApiClient {
     let response = self
       .client
       .get(url)
-      .header("User-Agent", "donutbrowser")
+      .header("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36")
       .send()
       .await?;
 
@@ -447,10 +511,6 @@ impl ApiClient {
             version: release.version.clone(),
             date: release.date,
             is_prerelease: !is_stable,
-            download_url: Some(format!(
-              "{}/?product=firefox-{}&os=osx&lang=en-US",
-              self.mozilla_download_base, release.version
-            )),
           })
         } else {
           None
@@ -492,11 +552,7 @@ impl ApiClient {
               BrowserRelease {
                 version: version.clone(),
                 date: "".to_string(), // Cache doesn't store dates
-                is_prerelease: is_alpha_version(&version),
-                download_url: Some(format!(
-                  "{}/?product=devedition-{}&os=osx&lang=en-US",
-                  self.mozilla_download_base, version
-                )),
+                is_prerelease: is_browser_version_nightly("firefox-developer", &version, None),
               }
             })
             .collect(),
@@ -510,7 +566,7 @@ impl ApiClient {
     let response = self
       .client
       .get(url)
-      .header("User-Agent", "donutbrowser")
+      .header("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36")
       .send()
       .await?;
 
@@ -538,10 +594,6 @@ impl ApiClient {
             version: release.version.clone(),
             date: release.date,
             is_prerelease: !is_stable,
-            download_url: Some(format!(
-              "{}/?product=devedition-{}&os=osx&lang=en-US",
-              self.mozilla_download_base, release.version
-            )),
           })
         } else {
           None
@@ -569,13 +621,6 @@ impl ApiClient {
     Ok(releases)
   }
 
-  #[allow(dead_code)]
-  pub async fn fetch_mullvad_releases(
-    &self,
-  ) -> Result<Vec<GithubRelease>, Box<dyn std::error::Error + Send + Sync>> {
-    self.fetch_mullvad_releases_with_caching(false).await
-  }
-
   pub async fn fetch_mullvad_releases_with_caching(
     &self,
     no_caching: bool,
@@ -589,13 +634,13 @@ impl ApiClient {
 
     println!("Fetching Mullvad releases from GitHub API...");
     let url = format!(
-      "{}/repos/mullvad/mullvad-browser/releases",
+      "{}/repos/mullvad/mullvad-browser/releases?per_page=100",
       self.github_api_base
     );
     let releases = self
       .client
       .get(url)
-      .header("User-Agent", "donutbrowser")
+      .header("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36")
       .send()
       .await?
       .json::<Vec<GithubRelease>>()
@@ -604,7 +649,7 @@ impl ApiClient {
     let mut releases: Vec<GithubRelease> = releases
       .into_iter()
       .map(|mut release| {
-        release.is_alpha = release.prerelease;
+        release.is_nightly = release.prerelease;
         release
       })
       .collect();
@@ -622,13 +667,6 @@ impl ApiClient {
     Ok(releases)
   }
 
-  #[allow(dead_code)]
-  pub async fn fetch_zen_releases(
-    &self,
-  ) -> Result<Vec<GithubRelease>, Box<dyn std::error::Error + Send + Sync>> {
-    self.fetch_zen_releases_with_caching(false).await
-  }
-
   pub async fn fetch_zen_releases_with_caching(
     &self,
     no_caching: bool,
@@ -642,19 +680,38 @@ impl ApiClient {
 
     println!("Fetching Zen releases from GitHub API...");
     let url = format!(
-      "{}/repos/zen-browser/desktop/releases",
+      "{}/repos/zen-browser/desktop/releases?per_page=100",
       self.github_api_base
     );
     let mut releases = self
       .client
       .get(url)
-      .header("User-Agent", "donutbrowser")
+      .header("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36")
       .send()
       .await?
       .json::<Vec<GithubRelease>>()
       .await?;
 
-    // Sort releases using the new version sorting system (twilight releases will be at top)
+    // Check for twilight updates and mark alpha releases
+    for release in &mut releases {
+      // Use browser-specific alpha detection for Zen Browser - only "twilight" is nightly
+      release.is_nightly =
+        is_browser_version_nightly("zen", &release.tag_name, Some(&release.name));
+
+      // Check for twilight update if this is a twilight release
+      if release.tag_name.to_lowercase() == "twilight" {
+        if let Ok(has_update) = self.check_twilight_update(release).await {
+          if has_update {
+            println!(
+              "Detected update for Zen twilight release: {}",
+              release.tag_name
+            );
+          }
+        }
+      }
+    }
+
+    // Sort releases using the new version sorting system
     sort_github_releases(&mut releases);
 
     // Cache the results (unless bypassing cache)
@@ -667,13 +724,6 @@ impl ApiClient {
     Ok(releases)
   }
 
-  #[allow(dead_code)]
-  pub async fn fetch_brave_releases(
-    &self,
-  ) -> Result<Vec<GithubRelease>, Box<dyn std::error::Error + Send + Sync>> {
-    self.fetch_brave_releases_with_caching(false).await
-  }
-
   pub async fn fetch_brave_releases_with_caching(
     &self,
     no_caching: bool,
@@ -687,32 +737,32 @@ impl ApiClient {
 
     println!("Fetching Brave releases from GitHub API...");
     let url = format!(
-      "{}/repos/brave/brave-browser/releases",
+      "{}/repos/brave/brave-browser/releases?per_page=100",
       self.github_api_base
     );
     let releases = self
       .client
       .get(url)
-      .header("User-Agent", "donutbrowser")
+      .header("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36")
       .send()
       .await?
       .json::<Vec<GithubRelease>>()
       .await?;
 
-    // Filter releases that have universal macOS DMG assets
+    // Get platform info to filter appropriate releases
+    let (os, arch) = Self::get_platform_info();
+
+    // Filter releases that have assets compatible with the current platform
     let mut filtered_releases: Vec<GithubRelease> = releases
       .into_iter()
       .filter_map(|mut release| {
-        // Check if this release has a universal DMG asset
-        let has_universal_dmg = release
-          .assets
-          .iter()
-          .any(|asset| asset.name.contains(".dmg") && asset.name.contains("universal"));
+        // Check if this release has compatible assets for the current platform
+        let has_compatible_asset = Self::has_compatible_brave_asset(&release.assets, &os, &arch);
 
-        if has_universal_dmg {
-          // Set is_alpha based on the release name
-          // Nightly releases contain "Nightly", stable contain "Release"
-          release.is_alpha = release.name.to_lowercase().contains("nightly");
+        if has_compatible_asset {
+          // Use the centralized nightly detection function
+          release.is_nightly =
+            is_browser_version_nightly("brave", &release.tag_name, Some(&release.name));
           Some(release)
         } else {
           None
@@ -733,6 +783,67 @@ impl ApiClient {
     Ok(filtered_releases)
   }
 
+  /// Check if a Brave release has compatible assets for the given platform and architecture
+  fn has_compatible_brave_asset(
+    assets: &[crate::browser::GithubAsset],
+    os: &str,
+    arch: &str,
+  ) -> bool {
+    match os {
+      "windows" => {
+        // For Windows, look for standalone setup EXE (not the auto-updater one)
+        assets.iter().any(|asset| {
+          let name = asset.name.to_lowercase();
+          name.contains("standalone") && name.ends_with(".exe") && !name.contains("silent")
+        }) || assets.iter().any(|asset| asset.name.ends_with(".exe"))
+      }
+      "macos" => {
+        // For macOS, prefer universal DMG
+        assets.iter().any(|asset| {
+          let name = asset.name.to_lowercase();
+          name.contains("universal") && name.ends_with(".dmg")
+        }) || assets.iter().any(|asset| asset.name.ends_with(".dmg"))
+      }
+      "linux" => {
+        // For Linux, be strict about architecture matching - only allow assets that explicitly match the current architecture
+        let arch_pattern = if arch == "arm64" { "arm64" } else { "amd64" };
+
+        if assets.iter().any(|asset| {
+          let name = asset.name.to_lowercase();
+          name.contains("linux") && name.contains(arch_pattern) && name.ends_with(".zip")
+        }) {
+          return true;
+        }
+
+        false
+      }
+      _ => false,
+    }
+  }
+
+  /// Get platform and architecture information  
+  fn get_platform_info() -> (String, String) {
+    let os = if cfg!(target_os = "windows") {
+      "windows"
+    } else if cfg!(target_os = "linux") {
+      "linux"
+    } else if cfg!(target_os = "macos") {
+      "macos"
+    } else {
+      "unknown"
+    };
+
+    let arch = if cfg!(target_arch = "x86_64") {
+      "x64"
+    } else if cfg!(target_arch = "aarch64") {
+      "arm64"
+    } else {
+      "unknown"
+    };
+
+    (os.to_string(), arch.to_string())
+  }
+
   pub async fn fetch_chromium_latest_version(
     &self,
   ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
@@ -746,7 +857,7 @@ impl ApiClient {
     let version = self
       .client
       .get(&url)
-      .header("User-Agent", "donutbrowser")
+      .header("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36")
       .send()
       .await?
       .text()
@@ -772,7 +883,6 @@ impl ApiClient {
                 version: version.clone(),
                 date: "".to_string(), // Cache doesn't store dates
                 is_prerelease: false, // Chromium versions are generally stable builds
-                download_url: None,
               }
             })
             .collect(),
@@ -809,7 +919,6 @@ impl ApiClient {
           version: version.clone(),
           date: "".to_string(),
           is_prerelease: false,
-          download_url: None,
         })
         .collect(),
     )
@@ -829,11 +938,7 @@ impl ApiClient {
               BrowserRelease {
                 version: version.clone(),
                 date: "".to_string(), // Cache doesn't store dates
-                is_prerelease: false, // Assume all archived versions are stable
-                download_url: Some(format!(
-                  "{}/{version}/tor-browser-macos-{version}.dmg",
-                  self.tor_archive_base
-                )),
+                is_prerelease: is_browser_version_nightly("tor-browser", &version, None),
               }
             })
             .collect(),
@@ -846,7 +951,7 @@ impl ApiClient {
     let html = self
       .client
       .get(url)
-      .header("User-Agent", "donutbrowser")
+      .header("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36")
       .send()
       .await?
       .text()
@@ -908,10 +1013,6 @@ impl ApiClient {
             version: version.clone(),
             date: "".to_string(), // TOR archive doesn't provide structured dates
             is_prerelease: false, // Assume all archived versions are stable
-            download_url: Some(format!(
-              "{}/{version}/tor-browser-macos-{version}.dmg",
-              self.tor_archive_base
-            )),
           }
         })
         .collect(),
@@ -926,7 +1027,7 @@ impl ApiClient {
     let html = self
       .client
       .get(&url)
-      .header("User-Agent", "donutbrowser")
+      .header("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36")
       .send()
       .await?
       .text()
@@ -935,12 +1036,87 @@ impl ApiClient {
     // Check if there's a macOS DMG file in this version directory
     Ok(html.contains("tor-browser-macos-") && html.contains(".dmg"))
   }
+
+  /// Check if a Zen twilight release has been updated by comparing file size
+  pub async fn check_twilight_update(
+    &self,
+    release: &GithubRelease,
+  ) -> Result<bool, Box<dyn std::error::Error + Send + Sync>> {
+    if release.tag_name.to_lowercase() != "twilight" {
+      return Ok(false); // Not a twilight release
+    }
+
+    // Find the macOS universal DMG asset
+    let asset = release
+      .assets
+      .iter()
+      .find(|asset| asset.name == "zen.macos-universal.dmg")
+      .ok_or("No macOS universal asset found for twilight release")?;
+
+    // Check if we have cached file size information
+    let cache_dir = Self::get_cache_dir()?;
+    let twilight_cache_file = cache_dir.join("zen_twilight_info.json");
+
+    #[derive(serde::Serialize, serde::Deserialize)]
+    struct TwilightInfo {
+      file_size: u64,
+      last_updated: u64,
+    }
+
+    let current_info = TwilightInfo {
+      file_size: asset.size,
+      last_updated: Self::get_current_timestamp(),
+    };
+
+    if !twilight_cache_file.exists() {
+      // No cache exists, save current info and return true (new)
+      let content = serde_json::to_string_pretty(&current_info)?;
+      fs::write(&twilight_cache_file, content)?;
+      return Ok(true);
+    }
+
+    let cached_content = fs::read_to_string(&twilight_cache_file)?;
+    let cached_info: TwilightInfo = serde_json::from_str(&cached_content)?;
+
+    // Check if file size has changed
+    if cached_info.file_size != current_info.file_size {
+      // File size changed, update cache and return true
+      let content = serde_json::to_string_pretty(&current_info)?;
+      fs::write(&twilight_cache_file, content)?;
+      println!(
+        "Zen twilight release updated: file size changed from {} to {}",
+        cached_info.file_size, current_info.file_size
+      );
+      return Ok(true);
+    }
+
+    Ok(false) // No update detected
+  }
+
+  pub fn clear_all_cache(&self) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
+    let cache_dir = Self::get_cache_dir()?;
+
+    if cache_dir.exists() {
+      // Remove all cache files
+      for entry in fs::read_dir(&cache_dir)? {
+        let entry = entry?;
+        let path = entry.path();
+        if path.is_file() {
+          fs::remove_file(&path)?;
+          println!("Removed cache file: {path:?}");
+        }
+      }
+      println!("All version cache cleared successfully");
+    }
+
+    Ok(())
+  }
 }
 
 #[cfg(test)]
 mod tests {
   use super::*;
-  use wiremock::matchers::{header, method, path};
+  use wiremock::matchers::{method, path, query_param};
   use wiremock::{Mock, MockServer, ResponseTemplate};
 
   async fn setup_mock_server() -> MockServer {
@@ -955,7 +1131,6 @@ mod tests {
       base_url.clone(), // github_api_base
       base_url.clone(), // chromium_api_base
       base_url.clone(), // tor_archive_base
-      base_url.clone(), // mozilla_download_base
     )
   }
 
@@ -989,10 +1164,14 @@ mod tests {
     assert_eq!(pre.number, Some(5));
 
     // Test twilight version (Zen Browser)
-    let v4 = VersionComponent::parse("1.0.0-twilight");
-    assert_eq!(v4.major, u32::MAX);
-    assert_eq!(v4.minor, u32::MAX);
-    assert_eq!(v4.patch, u32::MAX);
+    let v4 = VersionComponent::parse("twilight");
+    assert_eq!(v4.major, 999);
+    assert_eq!(v4.minor, 0);
+    assert_eq!(v4.patch, 0);
+    assert!(v4.pre_release.is_some());
+    let pre = v4.pre_release.unwrap();
+    assert_eq!(pre.kind, PreReleaseKind::Alpha);
+    assert_eq!(pre.number, Some(999));
   }
 
   #[test]
@@ -1022,10 +1201,15 @@ mod tests {
     let v10 = VersionComponent::parse("137.0b5");
     assert!(v10 > v9); // b5 > b4
 
-    // Test twilight version (should be highest)
-    let v11 = VersionComponent::parse("1.0.0-twilight");
-    let v12 = VersionComponent::parse("999.999.999");
-    assert!(v11 > v12);
+    // Test twilight version (should have highest priority)
+    let v11 = VersionComponent::parse("twilight");
+    let v12 = VersionComponent::parse("1.0.0");
+    assert!(v11 > v12); // twilight > stable due to high major version
+
+    // Test twilight vs other pre-releases
+    let v13 = VersionComponent::parse("twilight");
+    let v14 = VersionComponent::parse("1.0.0a1");
+    assert!(v13 > v14); // twilight > a1 due to high major version
   }
 
   #[test]
@@ -1037,14 +1221,14 @@ mod tests {
       "137.0b4".to_string(),
       "137.0b5".to_string(),
       "137.0".to_string(),
-      "1.0.0-twilight".to_string(),
+      "twilight".to_string(),
       "2.0.0a1".to_string(),
     ];
 
     sort_versions(&mut versions);
 
-    // Expected order: twilight, 137.0, 137.0b5, 137.0b4, 2.0.0a1, 1.12.6b, 1.10.0, 1.9.9b
-    assert_eq!(versions[0], "1.0.0-twilight");
+    // Expected order with twilight priority: twilight first due to high major version (999), then normal semantic versioning
+    assert_eq!(versions[0], "twilight");
     assert_eq!(versions[1], "137.0");
     assert_eq!(versions[2], "137.0b5");
     assert_eq!(versions[3], "137.0b4");
@@ -1054,6 +1238,31 @@ mod tests {
     assert_eq!(versions[7], "1.9.9b");
   }
 
+  #[test]
+  fn test_sort_versions_comprehensive() {
+    let mut versions = vec![
+      "1.0.0".to_string(),
+      "1.0.1".to_string(),
+      "1.1.0".to_string(),
+      "2.0.0a1".to_string(),
+      "2.0.0b1".to_string(),
+      "2.0.0rc1".to_string(),
+      "2.0.0".to_string(),
+      "10.0.0".to_string(),
+      "twilight".to_string(),
+    ];
+
+    sort_versions(&mut versions);
+
+    // Expected order with twilight priority: twilight first due to high major version (999), then normal semantic versioning
+    assert_eq!(versions[0], "twilight");
+    assert_eq!(versions[1], "10.0.0");
+    assert_eq!(versions[2], "2.0.0");
+    assert_eq!(versions[3], "2.0.0rc1");
+    assert_eq!(versions[4], "2.0.0b1");
+    assert_eq!(versions[5], "2.0.0a1");
+  }
+
   #[tokio::test]
   async fn test_firefox_api() {
     let server = setup_mock_server().await;
@@ -1084,7 +1293,6 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/firefox.json"))
-      .and(header("user-agent", "donutbrowser"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string(mock_response)
@@ -1095,16 +1303,13 @@ mod tests {
 
     let result = client.fetch_firefox_releases_with_caching(true).await;
 
+    if let Err(e) = &result {
+      println!("Firefox API test error: {e}");
+    }
     assert!(result.is_ok());
     let releases = result.unwrap();
     assert!(!releases.is_empty());
     assert_eq!(releases[0].version, "139.0");
-    assert!(releases[0].download_url.is_some());
-    assert!(releases[0]
-      .download_url
-      .as_ref()
-      .unwrap()
-      .contains(&server.uri()));
   }
 
   #[tokio::test]
@@ -1128,7 +1333,6 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/devedition.json"))
-      .and(header("user-agent", "donutbrowser"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string(mock_response)
@@ -1141,16 +1345,13 @@ mod tests {
       .fetch_firefox_developer_releases_with_caching(true)
       .await;
 
+    if let Err(e) = &result {
+      println!("Firefox Developer API test error: {e}");
+    }
     assert!(result.is_ok());
     let releases = result.unwrap();
     assert!(!releases.is_empty());
     assert_eq!(releases[0].version, "140.0b1");
-    assert!(releases[0].download_url.is_some());
-    assert!(releases[0]
-      .download_url
-      .as_ref()
-      .unwrap()
-      .contains(&server.uri()));
   }
 
   #[tokio::test]
@@ -1167,7 +1368,8 @@ mod tests {
         "assets": [
           {
             "name": "mullvad-browser-macos-14.5a6.dmg",
-            "browser_download_url": "https://example.com/mullvad-14.5a6.dmg"
+            "browser_download_url": "https://example.com/mullvad-14.5a6.dmg",
+            "size": 100000000
           }
         ]
       }
@@ -1175,7 +1377,7 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/repos/mullvad/mullvad-browser/releases"))
-      .and(header("user-agent", "donutbrowser"))
+      .and(query_param("per_page", "100"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string(mock_response)
@@ -1190,7 +1392,7 @@ mod tests {
     let releases = result.unwrap();
     assert!(!releases.is_empty());
     assert_eq!(releases[0].tag_name, "14.5a6");
-    assert!(releases[0].is_alpha);
+    assert!(releases[0].is_nightly);
   }
 
   #[tokio::test]
@@ -1200,14 +1402,15 @@ mod tests {
 
     let mock_response = r#"[
       {
-        "tag_name": "1.0.0-twilight",
+        "tag_name": "twilight",
         "name": "Zen Browser Twilight",
         "prerelease": false,
         "published_at": "2024-01-15T10:00:00Z",
         "assets": [
           {
             "name": "zen.macos-universal.dmg",
-            "browser_download_url": "https://example.com/zen-twilight.dmg"
+            "browser_download_url": "https://example.com/zen-twilight.dmg",
+            "size": 120000000
           }
         ]
       }
@@ -1215,7 +1418,7 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/repos/zen-browser/desktop/releases"))
-      .and(header("user-agent", "donutbrowser"))
+      .and(query_param("per_page", "100"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string(mock_response)
@@ -1229,7 +1432,7 @@ mod tests {
     assert!(result.is_ok());
     let releases = result.unwrap();
     assert!(!releases.is_empty());
-    assert_eq!(releases[0].tag_name, "1.0.0-twilight");
+    assert_eq!(releases[0].tag_name, "twilight");
   }
 
   #[tokio::test]
@@ -1246,7 +1449,8 @@ mod tests {
         "assets": [
           {
             "name": "brave-v1.81.9-universal.dmg",
-            "browser_download_url": "https://example.com/brave-1.81.9-universal.dmg"
+            "browser_download_url": "https://example.com/brave-1.81.9-universal.dmg",
+            "size": 200000000
           }
         ]
       }
@@ -1254,7 +1458,7 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/repos/brave/brave-browser/releases"))
-      .and(header("user-agent", "donutbrowser"))
+      .and(query_param("per_page", "100"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string(mock_response)
@@ -1265,11 +1469,14 @@ mod tests {
 
     let result = client.fetch_brave_releases_with_caching(true).await;
 
+    if let Err(e) = &result {
+      println!("Brave API test error: {e}");
+    }
     assert!(result.is_ok());
     let releases = result.unwrap();
     assert!(!releases.is_empty());
     assert_eq!(releases[0].tag_name, "v1.81.9");
-    assert!(!releases[0].is_alpha);
+    assert!(releases[0].is_nightly);
   }
 
   #[tokio::test]
@@ -1285,7 +1492,6 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path(format!("/{arch}/LAST_CHANGE")))
-      .and(header("user-agent", "donutbrowser"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string("1465660")
@@ -1314,7 +1520,6 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path(format!("/{arch}/LAST_CHANGE")))
-      .and(header("user-agent", "donutbrowser"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string("1465660")
@@ -1357,7 +1562,6 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/"))
-      .and(header("user-agent", "donutbrowser"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string(mock_html)
@@ -1368,7 +1572,6 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/14.0.4/"))
-      .and(header("user-agent", "donutbrowser"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string(version_html)
@@ -1379,7 +1582,6 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/14.0.3/"))
-      .and(header("user-agent", "donutbrowser"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string(version_html.replace("14.0.4", "14.0.3"))
@@ -1394,12 +1596,6 @@ mod tests {
     let releases = result.unwrap();
     assert!(!releases.is_empty());
     assert_eq!(releases[0].version, "14.0.4");
-    assert!(releases[0].download_url.is_some());
-    assert!(releases[0]
-      .download_url
-      .as_ref()
-      .unwrap()
-      .contains(&server.uri()));
   }
 
   #[tokio::test]
@@ -1417,7 +1613,6 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/14.0.4/"))
-      .and(header("user-agent", "donutbrowser"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string(version_html)
@@ -1447,7 +1642,6 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/14.0.5/"))
-      .and(header("user-agent", "donutbrowser"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string(version_html)
@@ -1463,37 +1657,24 @@ mod tests {
   }
 
   #[test]
-  fn test_is_alpha_version() {
-    assert!(is_alpha_version("1.2.3a1"));
-    assert!(is_alpha_version("137.0b5"));
-    assert!(is_alpha_version("140.0rc1"));
-    assert!(!is_alpha_version("139.0"));
-    assert!(!is_alpha_version("1.2.3"));
+  fn test_is_nightly_version() {
+    assert!(is_nightly_version("1.2.3a1"));
+    assert!(is_nightly_version("137.0b5"));
+    assert!(is_nightly_version("140.0rc1"));
+    assert!(!is_nightly_version("139.0"));
+    assert!(!is_nightly_version("1.2.3"));
   }
 
   #[test]
-  fn test_sort_versions_comprehensive() {
-    let mut versions = vec![
-      "1.0.0".to_string(),
-      "1.0.1".to_string(),
-      "1.1.0".to_string(),
-      "2.0.0a1".to_string(),
-      "2.0.0b1".to_string(),
-      "2.0.0rc1".to_string(),
-      "2.0.0".to_string(),
-      "10.0.0".to_string(),
-      "1.0.0-twilight".to_string(),
-    ];
+  fn test_is_zen_nightly_version() {
+    // Only "twilight" should be considered nightly for Zen Browser
+    assert!(is_browser_version_nightly("zen", "twilight", None));
+    assert!(is_browser_version_nightly("zen", "TWILIGHT", None)); // Case insensitive
 
-    sort_versions(&mut versions);
-
-    // Twilight should be first, then normal semantic versioning
-    assert_eq!(versions[0], "1.0.0-twilight");
-    assert_eq!(versions[1], "10.0.0");
-    assert_eq!(versions[2], "2.0.0");
-    assert_eq!(versions[3], "2.0.0rc1");
-    assert_eq!(versions[4], "2.0.0b1");
-    assert_eq!(versions[5], "2.0.0a1");
+    // Versions with "b" should NOT be considered nightly for Zen Browser
+    assert!(!is_browser_version_nightly("zen", "1.12.8b", None));
+    assert!(!is_browser_version_nightly("zen", "1.0.0b1", None));
+    assert!(!is_browser_version_nightly("zen", "2.0.0", None));
   }
 
   #[tokio::test]
@@ -1503,7 +1684,6 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/firefox.json"))
-      .and(header("user-agent", "donutbrowser"))
       .respond_with(ResponseTemplate::new(404))
       .mount(&server)
       .await;
@@ -1519,7 +1699,6 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/firefox.json"))
-      .and(header("user-agent", "donutbrowser"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string("invalid json")
@@ -1539,7 +1718,7 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/repos/zen-browser/desktop/releases"))
-      .and(header("user-agent", "donutbrowser"))
+      .and(query_param("per_page", "100"))
       .respond_with(ResponseTemplate::new(429).insert_header("retry-after", "60"))
       .mount(&server)
       .await;

src-tauri/src/app_auto_updater.rs

@@ -6,6 +6,8 @@ use std::path::{Path, PathBuf};
 use std::process::Command;
 use tauri::Emitter;
 
+use crate::extraction::Extractor;
+
 #[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct AppReleaseAsset {
   pub name: String,
@@ -47,8 +49,19 @@ impl AppAutoUpdater {
   /// Check if running a nightly build based on environment variable
   pub fn is_nightly_build() -> bool {
     // If STABLE_RELEASE env var is set at compile time, it's a stable build
-    // Otherwise, it's a nightly build
-    option_env!("STABLE_RELEASE").is_none()
+    if option_env!("STABLE_RELEASE").is_some() {
+      return false;
+    }
+
+    // Also check if the current version starts with "nightly-"
+    let current_version = Self::get_current_version();
+    if current_version.starts_with("nightly-") {
+      return true;
+    }
+
+    // If STABLE_RELEASE is not set and version doesn't start with "nightly-",
+    // it's still considered a nightly build (dev builds, main branch builds, etc.)
+    true
   }
 
   /// Get current app version from build-time injection
@@ -143,7 +156,7 @@ impl AppAutoUpdater {
     let response = self
       .client
       .get(url)
-      .header("User-Agent", "donutbrowser")
+      .header("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36")
       .send()
       .await?;
 
@@ -157,6 +170,10 @@ impl AppAutoUpdater {
 
   /// Determine if an update should be performed
   fn should_update(&self, current_version: &str, new_version: &str, is_nightly: bool) -> bool {
+    if current_version.starts_with("dev-") {
+      return false;
+    }
+
     println!(
       "Comparing versions: current={current_version}, new={new_version}, is_nightly={is_nightly}"
     );
@@ -210,6 +227,7 @@ impl AppAutoUpdater {
 
   /// Get the appropriate download URL for the current platform
   fn get_download_url_for_platform(&self, assets: &[AppReleaseAsset]) -> Option<String> {
+    // Priority 1: Get architecture-specific binary for backward compatibility
     let arch = if cfg!(target_arch = "aarch64") {
       "aarch64"
     } else if cfg!(target_arch = "x86_64") {
@@ -218,12 +236,9 @@ impl AppAutoUpdater {
       "unknown"
     };
 
-    println!("Looking for assets with architecture: {arch}");
-    for asset in assets {
-      println!("Found asset: {}", asset.name);
-    }
+    println!("Falling back to architecture-specific search for: {arch}");
 
-    // Priority 1: Look for exact architecture match in DMG
+    // Look for exact architecture match in DMG
     for asset in assets {
       if asset.name.contains(".dmg")
         && (asset.name.contains(&format!("_{arch}.dmg"))
@@ -236,7 +251,7 @@ impl AppAutoUpdater {
       }
     }
 
-    // Priority 2: Look for x86_64 variations if we're looking for x64
+    // Look for x86_64 variations if we're looking for x64
     if arch == "x64" {
       for asset in assets {
         if asset.name.contains(".dmg")
@@ -248,7 +263,7 @@ impl AppAutoUpdater {
       }
     }
 
-    // Priority 3: Look for arm64 variations if we're looking for aarch64
+    // Look for arm64 variations if we're looking for aarch64
     if arch == "aarch64" {
       for asset in assets {
         if asset.name.contains(".dmg")
@@ -260,7 +275,7 @@ impl AppAutoUpdater {
       }
     }
 
-    // Priority 4: Fallback to any macOS DMG
+    // Priority 2: Fallback to any macOS DMG
     for asset in assets {
       if asset.name.contains(".dmg")
         && (asset.name.to_lowercase().contains("macos")
@@ -339,7 +354,7 @@ impl AppAutoUpdater {
     let response = self
       .client
       .get(download_url)
-      .header("User-Agent", "donutbrowser")
+      .header("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36")
       .send()
       .await?;
 
@@ -359,73 +374,33 @@ impl AppAutoUpdater {
     Ok(file_path)
   }
 
-  /// Extract the update (DMG on macOS)
+  /// Extract the update using the extraction module
   async fn extract_update(
     &self,
-    dmg_path: &Path,
+    archive_path: &Path,
     dest_dir: &Path,
   ) -> Result<PathBuf, Box<dyn std::error::Error + Send + Sync>> {
-    // For DMG files on macOS, we need to mount and copy the .app
-    let mount_point = dest_dir.join("mount");
-    fs::create_dir_all(&mount_point)?;
+    let extractor = Extractor::new();
 
-    // Mount the DMG
-    let output = Command::new("hdiutil")
-      .args([
-        "attach",
-        "-nobrowse",
-        "-mountpoint",
-        mount_point.to_str().unwrap(),
-        dmg_path.to_str().unwrap(),
-      ])
-      .output()?;
+    let extension = archive_path
+      .extension()
+      .and_then(|ext| ext.to_str())
+      .unwrap_or("");
 
-    if !output.status.success() {
-      return Err(
-        format!(
-          "Failed to mount DMG: {}",
-          String::from_utf8_lossy(&output.stderr)
-        )
-        .into(),
-      );
+    match extension {
+      "dmg" => {
+        #[cfg(target_os = "macos")]
+        {
+          extractor.extract_dmg(archive_path, dest_dir).await
+        }
+        #[cfg(not(target_os = "macos"))]
+        {
+          Err("DMG extraction is only supported on macOS".into())
+        }
+      }
+      "zip" => extractor.extract_zip(archive_path, dest_dir).await,
+      _ => Err(format!("Unsupported archive format: {extension}").into()),
     }
-
-    // Find the .app in the mount point
-    let app_entry = fs::read_dir(&mount_point)?
-      .filter_map(Result::ok)
-      .find(|entry| entry.path().extension().is_some_and(|ext| ext == "app"))
-      .ok_or("No .app found in DMG")?;
-
-    let app_path = dest_dir.join("extracted_app");
-    if app_path.exists() {
-      fs::remove_dir_all(&app_path)?;
-    }
-
-    // Copy the .app to extraction directory
-    let output = Command::new("cp")
-      .args([
-        "-R",
-        app_entry.path().to_str().unwrap(),
-        app_path.to_str().unwrap(),
-      ])
-      .output()?;
-
-    if !output.status.success() {
-      return Err(
-        format!(
-          "Failed to copy app: {}",
-          String::from_utf8_lossy(&output.stderr)
-        )
-        .into(),
-      );
-    }
-
-    // Unmount the DMG
-    let _ = Command::new("hdiutil")
-      .args(["detach", mount_point.to_str().unwrap()])
-      .output();
-
-    Ok(app_path)
   }
 
   /// Install the update by replacing the current app
@@ -567,14 +542,6 @@ pub async fn download_and_install_app_update(
     .map_err(|e| format!("Failed to install app update: {e}"))
 }
 
-#[tauri::command]
-pub fn get_app_version_info() -> Result<(String, bool), String> {
-  Ok((
-    AppAutoUpdater::get_current_version(),
-    AppAutoUpdater::is_nightly_build(),
-  ))
-}
-
 #[tauri::command]
 pub async fn check_for_app_updates_manual() -> Result<Option<AppUpdateInfo>, String> {
   println!("Manual app update check triggered");
@@ -594,6 +561,10 @@ mod tests {
     // This will depend on whether STABLE_RELEASE is set during test compilation
     let is_nightly = AppAutoUpdater::is_nightly_build();
     println!("Is nightly build: {is_nightly}");
+
+    // The result should be true for test builds since STABLE_RELEASE is not set
+    // unless the test is run in a stable release environment
+    assert!(is_nightly || option_env!("STABLE_RELEASE").is_some());
   }
 
   #[test]
@@ -640,8 +611,10 @@ mod tests {
     // Upgrade from stable to nightly
     assert!(updater.should_update("v1.0.0", "nightly-abc123", true));
 
-    // Upgrade from dev to nightly
-    assert!(updater.should_update("dev-0.1.0", "nightly-abc123", true));
+    // Don't upgrade dev, ever
+    assert!(!updater.should_update("dev-0.1.0", "nightly-xyz987", false));
+    assert!(!updater.should_update("dev-0.1.0", "nightly-xyz987", true));
+    assert!(!updater.should_update("dev-0.1.0", "v1.2.3", false));
   }
 
   #[test]
@@ -682,8 +655,59 @@ mod tests {
     let url = updater.get_download_url_for_platform(&assets);
     assert!(url.is_some());
 
-    // The exact URL depends on the target architecture
-    let url = url.unwrap();
-    assert!(url.contains(".dmg"));
+    // Test with generic macOS DMG (no architecture specified)
+    let generic_assets = vec![AppReleaseAsset {
+      name: "Donut.Browser_0.1.0_macos.dmg".to_string(),
+      browser_download_url: "https://example.com/macos.dmg".to_string(),
+      size: 12345,
+    }];
+
+    let generic_url = updater.get_download_url_for_platform(&generic_assets);
+    assert!(generic_url.is_some());
+    assert_eq!(generic_url.unwrap(), "https://example.com/macos.dmg");
+
+    // Test architecture-specific DMG
+    let arch_specific_assets = vec![
+      AppReleaseAsset {
+        name: "Donut.Browser_0.1.0_x64.dmg".to_string(),
+        browser_download_url: "https://example.com/x64.dmg".to_string(),
+        size: 12345,
+      },
+      AppReleaseAsset {
+        name: "Donut.Browser_0.1.0_aarch64.dmg".to_string(),
+        browser_download_url: "https://example.com/aarch64.dmg".to_string(),
+        size: 12345,
+      },
+    ];
+
+    let arch_url = updater.get_download_url_for_platform(&arch_specific_assets);
+    assert!(arch_url.is_some());
+    // The exact URL depends on the target architecture, but should be one of the available ones
+    let arch_url = arch_url.unwrap();
+    assert!(arch_url.contains(".dmg"));
+  }
+
+  #[test]
+  fn test_extract_update_uses_extractor() {
+    // This test verifies that the extract_update method properly uses the Extractor
+    // We can't run the actual extraction in unit tests without real DMG files,
+    // but we can verify the method signature and basic logic
+    let updater = AppAutoUpdater::new();
+
+    // Test that unsupported formats would be rejected
+    let temp_dir = std::env::temp_dir();
+    let unsupported_file = temp_dir.join("test.rar");
+
+    // Create a mock runtime to test the logic
+    let rt = tokio::runtime::Runtime::new().unwrap();
+
+    // This would fail because .rar is not supported, which proves
+    // our method is using the Extractor logic
+    let result = rt.block_on(async { updater.extract_update(&unsupported_file, &temp_dir).await });
+
+    // Should fail with unsupported format error
+    assert!(result.is_err());
+    let error_msg = result.unwrap_err().to_string();
+    assert!(error_msg.contains("Unsupported archive format: rar"));
   }
 }

src-tauri/src/auto_updater.rs

@@ -112,7 +112,7 @@ impl AutoUpdater {
     available_versions: &[BrowserVersionInfo],
   ) -> Result<Option<UpdateNotification>, Box<dyn std::error::Error + Send + Sync>> {
     let current_version = &profile.version;
-    let is_current_stable = !self.is_alpha_version(current_version);
+    let is_current_stable = !self.is_nightly_version(current_version);
 
     // Find the best available update
     let best_update = available_versions
@@ -218,40 +218,6 @@ impl AutoUpdater {
     Ok(state.auto_update_downloads.contains(&download_key))
   }
 
-  /// Start browser update process
-  pub async fn start_browser_update(
-    &self,
-    browser: &str,
-    new_version: &str,
-  ) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
-    // Add browser to disabled list to prevent conflicts during update
-    let mut state = self.load_auto_update_state()?;
-    state.disabled_browsers.insert(browser.to_string());
-
-    // Mark this download as auto-update for toast suppression
-    let download_key = format!("{browser}-{new_version}");
-    state.auto_update_downloads.insert(download_key);
-
-    self.save_auto_update_state(&state)?;
-
-    // The actual download will be triggered by the frontend
-    // This function now just marks the browser as updating to prevent conflicts
-    Ok(())
-  }
-
-  /// Complete browser update process
-  pub async fn complete_browser_update(
-    &self,
-    browser: &str,
-  ) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
-    // Remove browser from disabled list
-    let mut state = self.load_auto_update_state()?;
-    state.disabled_browsers.remove(browser);
-    self.save_auto_update_state(&state)?;
-
-    Ok(())
-  }
-
   /// Automatically update all affected profile versions after browser download
   pub async fn auto_update_profile_versions(
     &self,
@@ -312,9 +278,51 @@ impl AutoUpdater {
     state.auto_update_downloads.remove(&download_key);
     self.save_auto_update_state(&state)?;
 
+    // Check if auto-delete of unused binaries is enabled and perform cleanup
+    let settings = self
+      .settings_manager
+      .load_settings()
+      .map_err(|e| format!("Failed to load settings: {e}"))?;
+    if settings.auto_delete_unused_binaries {
+      // Perform cleanup in the background - don't fail the update if cleanup fails
+      if let Err(e) = self.cleanup_unused_binaries_internal() {
+        eprintln!("Warning: Failed to cleanup unused binaries after auto-update: {e}");
+      }
+    }
+
     Ok(updated_profiles)
   }
 
+  /// Internal method to cleanup unused binaries (used by auto-cleanup)
+  fn cleanup_unused_binaries_internal(
+    &self,
+  ) -> Result<Vec<String>, Box<dyn std::error::Error + Send + Sync>> {
+    // Load current profiles
+    let profiles = self
+      .browser_runner
+      .list_profiles()
+      .map_err(|e| format!("Failed to load profiles: {e}"))?;
+
+    // Load registry
+    let mut registry = crate::downloaded_browsers::DownloadedBrowsersRegistry::load()
+      .map_err(|e| format!("Failed to load browser registry: {e}"))?;
+
+    // Get active browser versions
+    let active_versions = registry.get_active_browser_versions(&profiles);
+
+    // Cleanup unused binaries
+    let cleaned_up = registry
+      .cleanup_unused_binaries(&active_versions)
+      .map_err(|e| format!("Failed to cleanup unused binaries: {e}"))?;
+
+    // Save updated registry
+    registry
+      .save()
+      .map_err(|e| format!("Failed to save registry: {e}"))?;
+
+    Ok(cleaned_up)
+  }
+
   /// Check if browser is disabled due to ongoing update
   pub fn is_browser_disabled(
     &self,
@@ -337,13 +345,10 @@ impl AutoUpdater {
 
   // Helper methods
 
-  fn is_alpha_version(&self, version: &str) -> bool {
-    version.contains("alpha")
-      || version.contains("beta")
-      || version.contains("rc")
-      || version.contains("a")
-      || version.contains("b")
-      || version.contains("dev")
+  fn is_nightly_version(&self, version: &str) -> bool {
+    // Use the centralized nightly detection function
+    // Since we don't have browser context here, use the general fallback
+    crate::api_client::is_nightly_version(version)
   }
 
   fn is_version_newer(&self, version1: &str, version2: &str) -> bool {
@@ -414,24 +419,6 @@ pub async fn check_for_browser_updates() -> Result<Vec<UpdateNotification>, Stri
   Ok(grouped)
 }
 
-#[tauri::command]
-pub async fn start_browser_update(browser: String, new_version: String) -> Result<(), String> {
-  let updater = AutoUpdater::new();
-  updater
-    .start_browser_update(&browser, &new_version)
-    .await
-    .map_err(|e| format!("Failed to start browser update: {e}"))
-}
-
-#[tauri::command]
-pub async fn complete_browser_update(browser: String) -> Result<(), String> {
-  let updater = AutoUpdater::new();
-  updater
-    .complete_browser_update(&browser)
-    .await
-    .map_err(|e| format!("Failed to complete browser update: {e}"))
-}
-
 #[tauri::command]
 pub async fn is_browser_disabled_for_update(browser: String) -> Result<bool, String> {
   let updater = AutoUpdater::new();
@@ -509,18 +496,18 @@ mod tests {
   }
 
   #[test]
-  fn test_is_alpha_version() {
+  fn test_is_nightly_version() {
     let updater = AutoUpdater::new();
 
-    assert!(updater.is_alpha_version("1.0.0-alpha"));
-    assert!(updater.is_alpha_version("1.0.0-beta"));
-    assert!(updater.is_alpha_version("1.0.0-rc"));
-    assert!(updater.is_alpha_version("1.0.0a1"));
-    assert!(updater.is_alpha_version("1.0.0b1"));
-    assert!(updater.is_alpha_version("1.0.0-dev"));
+    assert!(updater.is_nightly_version("1.0.0-alpha"));
+    assert!(updater.is_nightly_version("1.0.0-beta"));
+    assert!(updater.is_nightly_version("1.0.0-rc"));
+    assert!(updater.is_nightly_version("1.0.0a1"));
+    assert!(updater.is_nightly_version("1.0.0b1"));
+    assert!(updater.is_nightly_version("1.0.0-dev"));
 
-    assert!(!updater.is_alpha_version("1.0.0"));
-    assert!(!updater.is_alpha_version("1.2.3"));
+    assert!(!updater.is_nightly_version("1.0.0"));
+    assert!(!updater.is_nightly_version("1.2.3"));
   }
 
   #[test]

src-tauri/src/browser.rs

@@ -50,7 +50,6 @@ impl BrowserType {
 }
 
 pub trait Browser: Send + Sync {
-  fn browser_type(&self) -> BrowserType;
   fn get_executable_path(&self, install_dir: &Path) -> Result<PathBuf, Box<dyn std::error::Error>>;
   fn create_launch_args(
     &self,
@@ -59,24 +58,17 @@ pub trait Browser: Send + Sync {
     url: Option<String>,
   ) -> Result<Vec<String>, Box<dyn std::error::Error>>;
   fn is_version_downloaded(&self, version: &str, binaries_dir: &Path) -> bool;
+  fn prepare_executable(&self, executable_path: &Path) -> Result<(), Box<dyn std::error::Error>>;
 }
 
-pub struct FirefoxBrowser {
-  browser_type: BrowserType,
-}
+// Platform-specific modules
+#[cfg(target_os = "macos")]
+mod macos {
+  use super::*;
 
-impl FirefoxBrowser {
-  pub fn new(browser_type: BrowserType) -> Self {
-    Self { browser_type }
-  }
-}
-
-impl Browser for FirefoxBrowser {
-  fn browser_type(&self) -> BrowserType {
-    self.browser_type.clone()
-  }
-
-  fn get_executable_path(&self, install_dir: &Path) -> Result<PathBuf, Box<dyn std::error::Error>> {
+  pub fn get_firefox_executable_path(
+    install_dir: &Path,
+  ) -> Result<PathBuf, Box<dyn std::error::Error>> {
     // Find the .app directory
     let app_path = std::fs::read_dir(install_dir)?
       .filter_map(Result::ok)
@@ -106,6 +98,441 @@ impl Browser for FirefoxBrowser {
     Ok(executable_path)
   }
 
+  pub fn get_chromium_executable_path(
+    install_dir: &Path,
+  ) -> Result<PathBuf, Box<dyn std::error::Error>> {
+    // Find the .app directory
+    let app_path = std::fs::read_dir(install_dir)?
+      .filter_map(Result::ok)
+      .find(|entry| entry.path().extension().is_some_and(|ext| ext == "app"))
+      .ok_or("Browser app not found")?;
+
+    // Construct the browser executable path
+    let mut executable_dir = app_path.path();
+    executable_dir.push("Contents");
+    executable_dir.push("MacOS");
+
+    // Find the first executable in the MacOS directory
+    let executable_path = std::fs::read_dir(&executable_dir)?
+      .filter_map(Result::ok)
+      .find(|entry| {
+        let binding = entry.file_name();
+        let name = binding.to_string_lossy();
+        name.contains("Chromium") || name.contains("Brave") || name.contains("Google Chrome")
+      })
+      .map(|entry| entry.path())
+      .ok_or("No executable found in MacOS directory")?;
+
+    Ok(executable_path)
+  }
+
+  pub fn is_firefox_version_downloaded(install_dir: &Path) -> bool {
+    // On macOS, check for .app files
+    if let Ok(entries) = std::fs::read_dir(install_dir) {
+      for entry in entries.flatten() {
+        if entry.path().extension().is_some_and(|ext| ext == "app") {
+          return true;
+        }
+      }
+    }
+    false
+  }
+
+  pub fn is_chromium_version_downloaded(install_dir: &Path) -> bool {
+    // On macOS, check for .app files
+    if let Ok(entries) = std::fs::read_dir(install_dir) {
+      for entry in entries.flatten() {
+        if entry.path().extension().is_some_and(|ext| ext == "app") {
+          return true;
+        }
+      }
+    }
+    false
+  }
+
+  pub fn prepare_executable(_executable_path: &Path) -> Result<(), Box<dyn std::error::Error>> {
+    // On macOS, no special preparation needed
+    Ok(())
+  }
+}
+
+#[cfg(target_os = "linux")]
+mod linux {
+  use super::*;
+  use std::os::unix::fs::PermissionsExt;
+
+  pub fn get_firefox_executable_path(
+    install_dir: &Path,
+    browser_type: &BrowserType,
+  ) -> Result<PathBuf, Box<dyn std::error::Error>> {
+    // Expected structure: install_dir/<browser>/<binary>
+    let browser_subdir = install_dir.join(browser_type.as_str());
+
+    // Try firefox first (preferred), then firefox-bin
+    let possible_executables = match browser_type {
+      BrowserType::Firefox | BrowserType::FirefoxDeveloper => {
+        vec![
+          browser_subdir.join("firefox"),
+          browser_subdir.join("firefox-bin"),
+        ]
+      }
+      BrowserType::MullvadBrowser => {
+        vec![
+          browser_subdir.join("firefox"),
+          browser_subdir.join("mullvad-browser"),
+          browser_subdir.join("firefox-bin"),
+        ]
+      }
+      BrowserType::Zen => {
+        vec![browser_subdir.join("zen"), browser_subdir.join("zen-bin")]
+      }
+      BrowserType::TorBrowser => {
+        vec![
+          browser_subdir.join("firefox"),
+          browser_subdir.join("tor-browser"),
+          browser_subdir.join("firefox-bin"),
+        ]
+      }
+      _ => vec![],
+    };
+
+    for executable_path in &possible_executables {
+      if executable_path.exists() && executable_path.is_file() {
+        return Ok(executable_path.clone());
+      }
+    }
+
+    Err(
+      format!(
+        "Firefox executable not found in {}/{}",
+        install_dir.display(),
+        browser_type.as_str()
+      )
+      .into(),
+    )
+  }
+
+  pub fn get_chromium_executable_path(
+    install_dir: &Path,
+    browser_type: &BrowserType,
+  ) -> Result<PathBuf, Box<dyn std::error::Error>> {
+    // Expected structure: install_dir/<browser>/<binary>
+    let browser_subdir = install_dir.join(browser_type.as_str());
+
+    let possible_executables = match browser_type {
+      BrowserType::Chromium => vec![
+        browser_subdir.join("chromium"),
+        browser_subdir.join("chrome"),
+      ],
+      BrowserType::Brave => vec![
+        browser_subdir.join("brave"),
+        browser_subdir.join("brave-browser"),
+      ],
+      _ => vec![],
+    };
+
+    for executable_path in &possible_executables {
+      if executable_path.exists() && executable_path.is_file() {
+        return Ok(executable_path.clone());
+      }
+    }
+
+    Err(
+      format!(
+        "Chromium executable not found in {}/{}",
+        install_dir.display(),
+        browser_type.as_str()
+      )
+      .into(),
+    )
+  }
+
+  pub fn is_firefox_version_downloaded(install_dir: &Path, browser_type: &BrowserType) -> bool {
+    // Expected structure: install_dir/<browser>/<binary>
+    let browser_subdir = install_dir.join(browser_type.as_str());
+
+    if !browser_subdir.exists() || !browser_subdir.is_dir() {
+      return false;
+    }
+
+    let possible_executables = match browser_type {
+      BrowserType::Firefox | BrowserType::FirefoxDeveloper => {
+        vec![
+          browser_subdir.join("firefox-bin"),
+          browser_subdir.join("firefox"),
+        ]
+      }
+      BrowserType::MullvadBrowser => {
+        vec![
+          browser_subdir.join("mullvad-browser"),
+          browser_subdir.join("firefox-bin"),
+          browser_subdir.join("firefox"),
+        ]
+      }
+      BrowserType::Zen => {
+        vec![browser_subdir.join("zen"), browser_subdir.join("zen-bin")]
+      }
+      BrowserType::TorBrowser => {
+        vec![
+          browser_subdir.join("tor-browser"),
+          browser_subdir.join("firefox-bin"),
+          browser_subdir.join("firefox"),
+        ]
+      }
+      _ => vec![],
+    };
+
+    for exe_path in &possible_executables {
+      if exe_path.exists() && exe_path.is_file() {
+        return true;
+      }
+    }
+
+    false
+  }
+
+  pub fn is_chromium_version_downloaded(install_dir: &Path, browser_type: &BrowserType) -> bool {
+    // Expected structure: install_dir/<browser>/<binary>
+    let browser_subdir = install_dir.join(browser_type.as_str());
+
+    if !browser_subdir.exists() || !browser_subdir.is_dir() {
+      return false;
+    }
+
+    let possible_executables = match browser_type {
+      BrowserType::Chromium => vec![
+        browser_subdir.join("chromium"),
+        browser_subdir.join("chrome"),
+      ],
+      BrowserType::Brave => vec![
+        browser_subdir.join("brave"),
+        browser_subdir.join("brave-browser"),
+        browser_subdir.join("brave-browser-nightly"),
+        browser_subdir.join("brave-browser-beta"),
+      ],
+      _ => vec![],
+    };
+
+    for exe_path in &possible_executables {
+      if exe_path.exists() && exe_path.is_file() {
+        return true;
+      }
+    }
+
+    false
+  }
+
+  pub fn prepare_executable(executable_path: &Path) -> Result<(), Box<dyn std::error::Error>> {
+    // On Linux, ensure the executable has proper permissions
+    println!("Setting execute permissions for: {:?}", executable_path);
+
+    let metadata = std::fs::metadata(executable_path)?;
+    let mut permissions = metadata.permissions();
+
+    // Add execute permissions for owner, group, and others
+    let mode = permissions.mode();
+    permissions.set_mode(mode | 0o755);
+
+    std::fs::set_permissions(executable_path, permissions)?;
+
+    println!(
+      "Execute permissions set successfully for: {:?}",
+      executable_path
+    );
+    Ok(())
+  }
+}
+
+#[cfg(target_os = "windows")]
+mod windows {
+  use super::*;
+
+  pub fn get_firefox_executable_path(
+    install_dir: &Path,
+  ) -> Result<PathBuf, Box<dyn std::error::Error>> {
+    // On Windows, look for firefox.exe
+    let possible_paths = [
+      install_dir.join("firefox.exe"),
+      install_dir.join("firefox").join("firefox.exe"),
+      install_dir.join("bin").join("firefox.exe"),
+    ];
+
+    for path in &possible_paths {
+      if path.exists() && path.is_file() {
+        return Ok(path.clone());
+      }
+    }
+
+    // Look for any .exe file that might be the browser
+    if let Ok(entries) = std::fs::read_dir(install_dir) {
+      for entry in entries.flatten() {
+        let path = entry.path();
+        if path.extension().is_some_and(|ext| ext == "exe") {
+          let name = path.file_stem().unwrap_or_default().to_string_lossy();
+          if name.starts_with("firefox")
+            || name.starts_with("mullvad")
+            || name.starts_with("zen")
+            || name.starts_with("tor")
+            || name.contains("browser")
+          {
+            return Ok(path);
+          }
+        }
+      }
+    }
+
+    Err("Firefox executable not found in Windows installation directory".into())
+  }
+
+  pub fn get_chromium_executable_path(
+    install_dir: &Path,
+    browser_type: &BrowserType,
+  ) -> Result<PathBuf, Box<dyn std::error::Error>> {
+    // On Windows, look for .exe files
+    let possible_paths = match browser_type {
+      BrowserType::Chromium => vec![
+        install_dir.join("chromium.exe"),
+        install_dir.join("chrome.exe"),
+        install_dir.join("chromium-browser.exe"),
+        install_dir.join("bin").join("chromium.exe"),
+      ],
+      BrowserType::Brave => vec![
+        install_dir.join("brave.exe"),
+        install_dir.join("brave-browser.exe"),
+        install_dir.join("bin").join("brave.exe"),
+      ],
+      _ => vec![],
+    };
+
+    for path in &possible_paths {
+      if path.exists() && path.is_file() {
+        return Ok(path.clone());
+      }
+    }
+
+    // Look for any .exe file that might be the browser
+    if let Ok(entries) = std::fs::read_dir(install_dir) {
+      for entry in entries.flatten() {
+        let path = entry.path();
+        if path.extension().is_some_and(|ext| ext == "exe") {
+          let name = path.file_stem().unwrap_or_default().to_string_lossy();
+          if name.contains("chromium") || name.contains("brave") || name.contains("chrome") {
+            return Ok(path);
+          }
+        }
+      }
+    }
+
+    Err("Chromium/Brave executable not found in Windows installation directory".into())
+  }
+
+  pub fn is_firefox_version_downloaded(install_dir: &Path) -> bool {
+    // On Windows, check for .exe files
+    let possible_executables = [
+      install_dir.join("firefox.exe"),
+      install_dir.join("firefox").join("firefox.exe"),
+      install_dir.join("bin").join("firefox.exe"),
+    ];
+
+    for exe_path in &possible_executables {
+      if exe_path.exists() && exe_path.is_file() {
+        return true;
+      }
+    }
+
+    // Check for any .exe file that looks like a browser
+    if let Ok(entries) = std::fs::read_dir(install_dir) {
+      for entry in entries.flatten() {
+        let path = entry.path();
+
+        if path.extension().is_some_and(|ext| ext == "exe") {
+          let name = path.file_stem().unwrap_or_default().to_string_lossy();
+          if name.starts_with("firefox")
+            || name.starts_with("mullvad")
+            || name.starts_with("zen")
+            || name.starts_with("tor")
+            || name.contains("browser")
+          {
+            return true;
+          }
+        }
+      }
+    }
+
+    false
+  }
+
+  pub fn is_chromium_version_downloaded(install_dir: &Path, browser_type: &BrowserType) -> bool {
+    // On Windows, check for .exe files
+    let possible_executables = match browser_type {
+      BrowserType::Chromium => vec![
+        install_dir.join("chromium.exe"),
+        install_dir.join("chrome.exe"),
+        install_dir.join("chromium-browser.exe"),
+        install_dir.join("bin").join("chromium.exe"),
+      ],
+      BrowserType::Brave => vec![
+        install_dir.join("brave.exe"),
+        install_dir.join("brave-browser.exe"),
+        install_dir.join("bin").join("brave.exe"),
+      ],
+      _ => vec![],
+    };
+
+    for exe_path in &possible_executables {
+      if exe_path.exists() && exe_path.is_file() {
+        return true;
+      }
+    }
+
+    // Check for any .exe file that looks like the browser
+    if let Ok(entries) = std::fs::read_dir(install_dir) {
+      for entry in entries.flatten() {
+        let path = entry.path();
+
+        if path.extension().is_some_and(|ext| ext == "exe") {
+          let name = path.file_stem().unwrap_or_default().to_string_lossy();
+          if name.contains("chromium") || name.contains("brave") || name.contains("chrome") {
+            return true;
+          }
+        }
+      }
+    }
+
+    false
+  }
+
+  pub fn prepare_executable(_executable_path: &Path) -> Result<(), Box<dyn std::error::Error>> {
+    // On Windows, no special preparation needed
+    Ok(())
+  }
+}
+
+pub struct FirefoxBrowser {
+  browser_type: BrowserType,
+}
+
+impl FirefoxBrowser {
+  pub fn new(browser_type: BrowserType) -> Self {
+    Self { browser_type }
+  }
+}
+
+impl Browser for FirefoxBrowser {
+  fn get_executable_path(&self, install_dir: &Path) -> Result<PathBuf, Box<dyn std::error::Error>> {
+    #[cfg(target_os = "macos")]
+    return macos::get_firefox_executable_path(install_dir);
+
+    #[cfg(target_os = "linux")]
+    return linux::get_firefox_executable_path(install_dir, &self.browser_type);
+
+    #[cfg(target_os = "windows")]
+    return windows::get_firefox_executable_path(install_dir);
+
+    #[cfg(not(any(target_os = "macos", target_os = "linux", target_os = "windows")))]
+    Err("Unsupported platform".into())
+  }
+
   fn create_launch_args(
     &self,
     profile_path: &str,
@@ -135,34 +562,52 @@ impl Browser for FirefoxBrowser {
   }
 
   fn is_version_downloaded(&self, version: &str, binaries_dir: &Path) -> bool {
-    let browser_dir = binaries_dir
-      .join(self.browser_type().as_str())
-      .join(version);
+    // Expected structure: binaries/<browser>/<version>
+    let browser_dir = binaries_dir.join(self.browser_type.as_str()).join(version);
 
     println!("Firefox browser checking version {version} in directory: {browser_dir:?}");
 
-    // Only check if directory exists and contains a .app file
-    if browser_dir.exists() {
-      println!("Directory exists, checking for .app files...");
-      if let Ok(entries) = std::fs::read_dir(&browser_dir) {
-        for entry in entries.flatten() {
-          println!("  Found entry: {:?}", entry.path());
-          if entry.path().extension().is_some_and(|ext| ext == "app") {
-            println!("  Found .app file: {:?}", entry.path());
-            return true;
-          }
-        }
-      }
-      println!("No .app files found in directory");
-    } else {
+    if !browser_dir.exists() {
       println!("Directory does not exist: {browser_dir:?}");
+      return false;
     }
-    false
+
+    println!("Directory exists, checking for browser files...");
+
+    #[cfg(target_os = "macos")]
+    return macos::is_firefox_version_downloaded(&browser_dir);
+
+    #[cfg(target_os = "linux")]
+    return linux::is_firefox_version_downloaded(&browser_dir, &self.browser_type);
+
+    #[cfg(target_os = "windows")]
+    return windows::is_firefox_version_downloaded(&browser_dir);
+
+    #[cfg(not(any(target_os = "macos", target_os = "linux", target_os = "windows")))]
+    {
+      println!("Unsupported platform for browser verification");
+      false
+    }
+  }
+
+  fn prepare_executable(&self, executable_path: &Path) -> Result<(), Box<dyn std::error::Error>> {
+    #[cfg(target_os = "macos")]
+    return macos::prepare_executable(executable_path);
+
+    #[cfg(target_os = "linux")]
+    return linux::prepare_executable(executable_path);
+
+    #[cfg(target_os = "windows")]
+    return windows::prepare_executable(executable_path);
+
+    #[cfg(not(any(target_os = "macos", target_os = "linux", target_os = "windows")))]
+    Err("Unsupported platform".into())
   }
 }
 
 // Chromium-based browsers (Chromium, Brave)
 pub struct ChromiumBrowser {
+  #[allow(dead_code)]
   browser_type: BrowserType,
 }
 
@@ -173,34 +618,18 @@ impl ChromiumBrowser {
 }
 
 impl Browser for ChromiumBrowser {
-  fn browser_type(&self) -> BrowserType {
-    self.browser_type.clone()
-  }
-
   fn get_executable_path(&self, install_dir: &Path) -> Result<PathBuf, Box<dyn std::error::Error>> {
-    // Find the .app directory
-    let app_path = std::fs::read_dir(install_dir)?
-      .filter_map(Result::ok)
-      .find(|entry| entry.path().extension().is_some_and(|ext| ext == "app"))
-      .ok_or("Browser app not found")?;
+    #[cfg(target_os = "macos")]
+    return macos::get_chromium_executable_path(install_dir);
 
-    // Construct the browser executable path
-    let mut executable_dir = app_path.path();
-    executable_dir.push("Contents");
-    executable_dir.push("MacOS");
+    #[cfg(target_os = "linux")]
+    return linux::get_chromium_executable_path(install_dir, &self.browser_type);
 
-    // Find the first executable in the MacOS directory
-    let executable_path = std::fs::read_dir(&executable_dir)?
-      .filter_map(Result::ok)
-      .find(|entry| {
-        let binding = entry.file_name();
-        let name = binding.to_string_lossy();
-        name.contains("Chromium") || name.contains("Brave") || name.contains("Google Chrome")
-      })
-      .map(|entry| entry.path())
-      .ok_or("No executable found in MacOS directory")?;
+    #[cfg(target_os = "windows")]
+    return windows::get_chromium_executable_path(install_dir, &self.browser_type);
 
-    Ok(executable_path)
+    #[cfg(not(any(target_os = "macos", target_os = "linux", target_os = "windows")))]
+    Err("Unsupported platform".into())
   }
 
   fn create_launch_args(
@@ -240,35 +669,46 @@ impl Browser for ChromiumBrowser {
   }
 
   fn is_version_downloaded(&self, version: &str, binaries_dir: &Path) -> bool {
-    let browser_dir = binaries_dir
-      .join(self.browser_type().as_str())
-      .join(version);
+    // Expected structure: binaries/<browser>/<version>
+    let browser_dir = binaries_dir.join(self.browser_type.as_str()).join(version);
 
     println!("Chromium browser checking version {version} in directory: {browser_dir:?}");
 
-    // Check if directory exists and contains at least one .app file
-    if browser_dir.exists() {
-      println!("Directory exists, checking for .app files...");
-      if let Ok(entries) = std::fs::read_dir(&browser_dir) {
-        for entry in entries.flatten() {
-          println!("  Found entry: {:?}", entry.path());
-          if entry.path().extension().is_some_and(|ext| ext == "app") {
-            println!("  Found .app file: {:?}", entry.path());
-            // Try to get the executable path as a final verification
-            if self.get_executable_path(&browser_dir).is_ok() {
-              println!("  Executable path verification successful");
-              return true;
-            } else {
-              println!("  Executable path verification failed");
-            }
-          }
-        }
-      }
-      println!("No valid .app files found in directory");
-    } else {
+    if !browser_dir.exists() {
       println!("Directory does not exist: {browser_dir:?}");
+      return false;
     }
-    false
+
+    println!("Directory exists, checking for browser files...");
+
+    #[cfg(target_os = "macos")]
+    return macos::is_chromium_version_downloaded(&browser_dir);
+
+    #[cfg(target_os = "linux")]
+    return linux::is_chromium_version_downloaded(&browser_dir, &self.browser_type);
+
+    #[cfg(target_os = "windows")]
+    return windows::is_chromium_version_downloaded(&browser_dir, &self.browser_type);
+
+    #[cfg(not(any(target_os = "macos", target_os = "linux", target_os = "windows")))]
+    {
+      println!("Unsupported platform for browser verification");
+      false
+    }
+  }
+
+  fn prepare_executable(&self, executable_path: &Path) -> Result<(), Box<dyn std::error::Error>> {
+    #[cfg(target_os = "macos")]
+    return macos::prepare_executable(executable_path);
+
+    #[cfg(target_os = "linux")]
+    return linux::prepare_executable(executable_path);
+
+    #[cfg(target_os = "windows")]
+    return windows::prepare_executable(executable_path);
+
+    #[cfg(not(any(target_os = "macos", target_os = "linux", target_os = "windows")))]
+    Err("Unsupported platform".into())
   }
 }
 
@@ -294,7 +734,7 @@ pub struct GithubRelease {
   #[serde(default)]
   pub published_at: String,
   #[serde(default)]
-  pub is_alpha: bool,
+  pub is_nightly: bool,
   #[serde(default)]
   pub prerelease: bool,
 }
@@ -303,6 +743,8 @@ pub struct GithubRelease {
 pub struct GithubAsset {
   pub name: String,
   pub browser_download_url: String,
+  #[serde(default)]
+  pub size: u64,
 }
 
 #[cfg(test)]
@@ -352,56 +794,6 @@ mod tests {
     assert!(BrowserType::from_str("Firefox").is_err()); // Case sensitive
   }
 
-  #[test]
-  fn test_firefox_browser_creation() {
-    let browser = FirefoxBrowser::new(BrowserType::Firefox);
-    assert_eq!(browser.browser_type(), BrowserType::Firefox);
-
-    let browser = FirefoxBrowser::new(BrowserType::MullvadBrowser);
-    assert_eq!(browser.browser_type(), BrowserType::MullvadBrowser);
-
-    let browser = FirefoxBrowser::new(BrowserType::TorBrowser);
-    assert_eq!(browser.browser_type(), BrowserType::TorBrowser);
-
-    let browser = FirefoxBrowser::new(BrowserType::Zen);
-    assert_eq!(browser.browser_type(), BrowserType::Zen);
-  }
-
-  #[test]
-  fn test_chromium_browser_creation() {
-    let browser = ChromiumBrowser::new(BrowserType::Chromium);
-    assert_eq!(browser.browser_type(), BrowserType::Chromium);
-
-    let browser = ChromiumBrowser::new(BrowserType::Brave);
-    assert_eq!(browser.browser_type(), BrowserType::Brave);
-  }
-
-  #[test]
-  fn test_browser_factory() {
-    // Test Firefox-based browsers
-    let browser = create_browser(BrowserType::Firefox);
-    assert_eq!(browser.browser_type(), BrowserType::Firefox);
-
-    let browser = create_browser(BrowserType::MullvadBrowser);
-    assert_eq!(browser.browser_type(), BrowserType::MullvadBrowser);
-
-    let browser = create_browser(BrowserType::Zen);
-    assert_eq!(browser.browser_type(), BrowserType::Zen);
-
-    let browser = create_browser(BrowserType::TorBrowser);
-    assert_eq!(browser.browser_type(), BrowserType::TorBrowser);
-
-    let browser = create_browser(BrowserType::FirefoxDeveloper);
-    assert_eq!(browser.browser_type(), BrowserType::FirefoxDeveloper);
-
-    // Test Chromium-based browsers
-    let browser = create_browser(BrowserType::Chromium);
-    assert_eq!(browser.browser_type(), BrowserType::Chromium);
-
-    let browser = create_browser(BrowserType::Brave);
-    assert_eq!(browser.browser_type(), BrowserType::Brave);
-  }
-
   #[test]
   fn test_firefox_launch_args() {
     // Test regular Firefox (should not use -no-remote)
@@ -507,7 +899,7 @@ mod tests {
     let temp_dir = TempDir::new().unwrap();
     let binaries_dir = temp_dir.path();
 
-    // Create a mock Firefox browser installation
+    // Create a mock Firefox browser installation with new path structure: binaries/<browser>/<version>/
     let browser_dir = binaries_dir.join("firefox").join("139.0");
     fs::create_dir_all(&browser_dir).unwrap();
 
@@ -519,7 +911,7 @@ mod tests {
     assert!(browser.is_version_downloaded("139.0", binaries_dir));
     assert!(!browser.is_version_downloaded("140.0", binaries_dir));
 
-    // Test with Chromium browser
+    // Test with Chromium browser with new path structure
     let chromium_dir = binaries_dir.join("chromium").join("1465660");
     fs::create_dir_all(&chromium_dir).unwrap();
     let chromium_app_dir = chromium_dir.join("Chromium.app");
@@ -542,7 +934,7 @@ mod tests {
     let temp_dir = TempDir::new().unwrap();
     let binaries_dir = temp_dir.path();
 
-    // Create browser directory but no .app directory
+    // Create browser directory but no .app directory with new path structure
     let browser_dir = binaries_dir.join("firefox").join("139.0");
     fs::create_dir_all(&browser_dir).unwrap();
 

src-tauri/src/default_browser.rs

@@ -77,13 +77,139 @@ mod windows {
 
 #[cfg(target_os = "linux")]
 mod linux {
+  use std::process::Command;
+
+  const APP_DESKTOP_NAME: &str = "donutbrowser.desktop";
+
   pub fn is_default_browser() -> Result<bool, String> {
-    // Linux implementation would go here
-    Err("Linux support not implemented yet".to_string())
+    // Check if xdg-mime is available
+    if !is_xdg_mime_available() {
+      return Err("xdg-mime utility not found. Please install xdg-utils package.".to_string());
+    }
+
+    let schemes = ["http", "https"];
+
+    for scheme in schemes {
+      let mime_type = format!("x-scheme-handler/{}", scheme);
+
+      // Query the current default handler for this scheme
+      let output = Command::new("xdg-mime")
+        .args(["query", "default", &mime_type])
+        .output()
+        .map_err(|e| format!("Failed to query default handler for {}: {}", scheme, e))?;
+
+      if !output.status.success() {
+        let stderr = String::from_utf8_lossy(&output.stderr);
+        return Err(format!("xdg-mime query failed for {}: {}", scheme, stderr));
+      }
+
+      let current_handler = String::from_utf8_lossy(&output.stdout).trim().to_string();
+
+      // Check if our app is the default handler
+      if current_handler != APP_DESKTOP_NAME {
+        return Ok(false);
+      }
+    }
+
+    Ok(true)
   }
 
   pub fn set_as_default_browser() -> Result<(), String> {
-    Err("Linux support not implemented yet".to_string())
+    // Check if xdg-mime is available
+    if !is_xdg_mime_available() {
+      return Err("xdg-mime utility not found. Please install xdg-utils package.".to_string());
+    }
+
+    // Check if the desktop file exists in common locations
+    if !check_desktop_file_exists() {
+      return Err(format!(
+        "Desktop file '{}' not found in standard locations. Please ensure the application is properly installed. You can manually set Donut Browser as the default browser in your system settings.",
+        APP_DESKTOP_NAME
+      ));
+    }
+
+    let schemes = ["http", "https"];
+    let mut all_succeeded = true;
+    let mut error_messages = Vec::new();
+
+    for scheme in schemes {
+      let mime_type = format!("x-scheme-handler/{}", scheme);
+
+      // Set our app as the default handler for this scheme
+      let output = Command::new("xdg-mime")
+        .args(["default", APP_DESKTOP_NAME, &mime_type])
+        .output()
+        .map_err(|e| format!("Failed to set default handler for {}: {}", scheme, e))?;
+
+      if !output.status.success() {
+        all_succeeded = false;
+        let stderr = String::from_utf8_lossy(&output.stderr);
+        error_messages.push(format!("Failed to set default for {}: {}", scheme, stderr));
+      }
+    }
+
+    if !all_succeeded {
+      return Err(format!(
+        "Some xdg-mime commands failed:\n{}\n\nYou may need to:\n1. Run with appropriate permissions\n2. Manually set the default browser in your desktop environment settings\n3. Restart your desktop session",
+        error_messages.join("\n")
+      ));
+    }
+
+    // Give the system a moment to process the changes
+    std::thread::sleep(std::time::Duration::from_millis(500));
+
+    // Verify the changes took effect
+    match is_default_browser() {
+      Ok(true) => Ok(()),
+      Ok(false) => {
+        // This is the common case where commands succeed but verification fails
+        Err(format!(
+          "The xdg-mime commands completed successfully, but Donut Browser is not yet set as the default. This is common on some Linux distributions. Please try one of these options:\n\n1. Restart your desktop session and try again\n2. Log out and log back in\n3. Manually set Donut Browser as the default in your system settings:\n   - GNOME: Settings > Default Applications > Web\n   - KDE: System Settings > Applications > Default Applications > Web Browser\n   - XFCE: Settings > Preferred Applications > Web Browser\n   - Or run: xdg-settings set default-web-browser {}\n\nThe changes may take effect automatically after a desktop restart.",
+          APP_DESKTOP_NAME
+        ))
+      }
+      Err(e) => Err(format!(
+        "Set as default completed, but verification failed: {}. The changes may still be in effect after restarting your desktop session.",
+        e
+      ))
+    }
+  }
+
+  fn is_xdg_mime_available() -> bool {
+    Command::new("which")
+      .arg("xdg-mime")
+      .output()
+      .map(|output| output.status.success())
+      .unwrap_or(false)
+  }
+
+  fn check_desktop_file_exists() -> bool {
+    let desktop_locations = [
+      "~/.local/share/applications/",
+      "/usr/share/applications/",
+      "/usr/local/share/applications/",
+      "/var/lib/flatpak/exports/share/applications/",
+      "~/.local/share/flatpak/exports/share/applications/",
+    ];
+
+    for location in &desktop_locations {
+      let path = if location.starts_with('~') {
+        if let Ok(home) = std::env::var("HOME") {
+          location.replace('~', &home)
+        } else {
+          continue;
+        }
+      } else {
+        location.to_string()
+      };
+
+      let full_path = format!("{}{}", path, APP_DESKTOP_NAME);
+      if std::path::Path::new(&full_path).exists() {
+        return true;
+      }
+    }
+
+    false
   }
 }
 
@@ -153,8 +279,8 @@ pub async fn open_url_with_profile(
 
 #[tauri::command]
 pub async fn smart_open_url(
-  _app_handle: tauri::AppHandle,
-  _url: String,
+  app_handle: tauri::AppHandle,
+  url: String,
   _is_startup: Option<bool>,
 ) -> Result<String, String> {
   use crate::browser_runner::BrowserRunner;
@@ -171,10 +297,75 @@ pub async fn smart_open_url(
   }
 
   println!(
-    "URL opening - Total profiles: {}, showing profile selector",
+    "URL opening - Total profiles: {}, checking for running profiles",
     profiles.len()
   );
 
-  // Always show the profile selector so the user can choose
+  // Check for running profiles and find the first one that can handle URLs
+  for profile in &profiles {
+    // Check if this profile is running
+    let is_running = runner
+      .check_browser_status(app_handle.clone(), profile)
+      .await
+      .unwrap_or(false);
+
+    if is_running {
+      println!(
+        "Found running profile '{}', attempting to open URL",
+        profile.name
+      );
+
+      // For TOR browser: Check if any other TOR browser is running
+      if profile.browser == "tor-browser" {
+        let mut other_tor_running = false;
+        for p in &profiles {
+          if p.browser == "tor-browser"
+            && p.name != profile.name
+            && runner
+              .check_browser_status(app_handle.clone(), p)
+              .await
+              .unwrap_or(false)
+          {
+            other_tor_running = true;
+            break;
+          }
+        }
+
+        if other_tor_running {
+          continue; // Skip this one, can't have multiple TOR instances
+        }
+      }
+
+      // For Mullvad browser: skip if running (can't open URLs in running Mullvad)
+      if profile.browser == "mullvad-browser" {
+        continue;
+      }
+
+      // Try to open the URL with this running profile
+      match runner
+        .launch_or_open_url(app_handle.clone(), profile, Some(url.clone()))
+        .await
+      {
+        Ok(_) => {
+          println!(
+            "Successfully opened URL '{}' with running profile '{}'",
+            url, profile.name
+          );
+          return Ok(format!("opened_with_profile:{}", profile.name));
+        }
+        Err(e) => {
+          println!(
+            "Failed to open URL with running profile '{}': {}",
+            profile.name, e
+          );
+          // Continue to try other profiles or show selector
+        }
+      }
+    }
+  }
+
+  println!("No suitable running profiles found, showing profile selector");
+
+  // No suitable running profile found, show the profile selector
   Err("show_selector".to_string())
 }

src-tauri/src/download.rs

@@ -51,7 +51,7 @@ impl Downloader {
   ) -> Result<String, Box<dyn std::error::Error + Send + Sync>> {
     match browser_type {
       BrowserType::Brave => {
-        // For Brave, we need to find the actual macOS asset
+        // For Brave, we need to find the actual platform-specific asset
         let releases = self
           .api_client
           .fetch_brave_releases_with_caching(true)
@@ -65,19 +65,20 @@ impl Downloader {
           })
           .ok_or(format!("Brave version {version} not found"))?;
 
-        // Find the universal macOS DMG asset
-        let asset = release
-          .assets
-          .iter()
-          .find(|asset| asset.name.contains(".dmg") && asset.name.contains("universal"))
+        // Get platform and architecture info
+        let (os, arch) = Self::get_platform_info();
+
+        // Find the appropriate asset based on platform and architecture
+        let asset_url = self
+          .find_brave_asset(&release.assets, &os, &arch)
           .ok_or(format!(
-            "No universal macOS DMG asset found for Brave version {version}"
+            "No compatible asset found for Brave version {version} on {os}/{arch}"
           ))?;
 
-        Ok(asset.browser_download_url.clone())
+        Ok(asset_url)
       }
       BrowserType::Zen => {
-        // For Zen, verify the asset exists
+        // For Zen, verify the asset exists and handle different naming patterns
         let releases = self
           .api_client
           .fetch_zen_releases_with_caching(true)
@@ -88,16 +89,17 @@ impl Downloader {
           .find(|r| r.tag_name == version)
           .ok_or(format!("Zen version {version} not found"))?;
 
-        // Find the macOS universal DMG asset
-        let asset = release
-          .assets
-          .iter()
-          .find(|asset| asset.name == "zen.macos-universal.dmg")
+        // Get platform and architecture info
+        let (os, arch) = Self::get_platform_info();
+
+        // Find the appropriate asset
+        let asset_url = self
+          .find_zen_asset(&release.assets, &os, &arch)
           .ok_or(format!(
-            "No macOS universal asset found for Zen version {version}"
+            "No compatible asset found for Zen version {version} on {os}/{arch}"
           ))?;
 
-        Ok(asset.browser_download_url.clone())
+        Ok(asset_url)
       }
       BrowserType::MullvadBrowser => {
         // For Mullvad, verify the asset exists
@@ -111,16 +113,17 @@ impl Downloader {
           .find(|r| r.tag_name == version)
           .ok_or(format!("Mullvad version {version} not found"))?;
 
-        // Find the macOS DMG asset
-        let asset = release
-          .assets
-          .iter()
-          .find(|asset| asset.name.contains(".dmg") && asset.name.contains("mac"))
+        // Get platform and architecture info
+        let (os, arch) = Self::get_platform_info();
+
+        // Find the appropriate asset
+        let asset_url = self
+          .find_mullvad_asset(&release.assets, &os, &arch)
           .ok_or(format!(
-            "No macOS asset found for Mullvad version {version}"
+            "No compatible asset found for Mullvad version {version} on {os}/{arch}"
           ))?;
 
-        Ok(asset.browser_download_url.clone())
+        Ok(asset_url)
       }
       _ => {
         // For other browsers, use the provided URL
@@ -129,6 +132,173 @@ impl Downloader {
     }
   }
 
+  /// Get platform and architecture information
+  fn get_platform_info() -> (String, String) {
+    let os = if cfg!(target_os = "windows") {
+      "windows"
+    } else if cfg!(target_os = "linux") {
+      "linux"
+    } else if cfg!(target_os = "macos") {
+      "macos"
+    } else {
+      "unknown"
+    };
+
+    let arch = if cfg!(target_arch = "x86_64") {
+      "x64"
+    } else if cfg!(target_arch = "aarch64") {
+      "arm64"
+    } else {
+      "unknown"
+    };
+
+    (os.to_string(), arch.to_string())
+  }
+
+  /// Find the appropriate Brave asset for the current platform and architecture
+  fn find_brave_asset(
+    &self,
+    assets: &[crate::browser::GithubAsset],
+    os: &str,
+    arch: &str,
+  ) -> Option<String> {
+    // Brave asset naming patterns:
+    // Windows: BraveBrowserStandaloneNightlySetup.exe, BraveBrowserStandaloneSilentNightlySetup.exe
+    // macOS: Brave-Browser-Nightly-universal.dmg, Brave-Browser-Nightly-universal.pkg
+    // Linux: brave-browser-1.79.119-linux-arm64.zip, brave-browser-1.79.119-linux-amd64.zip
+
+    let asset = match os {
+      "windows" => {
+        // For Windows, look for standalone setup EXE (not the auto-updater one)
+        assets
+          .iter()
+          .find(|asset| {
+            let name = asset.name.to_lowercase();
+            name.contains("standalone") && name.ends_with(".exe") && !name.contains("silent")
+          })
+          .or_else(|| {
+            // Fallback to any EXE if standalone not found
+            assets.iter().find(|asset| asset.name.ends_with(".exe"))
+          })
+      }
+      "macos" => {
+        // For macOS, prefer universal DMG
+        assets
+          .iter()
+          .find(|asset| {
+            let name = asset.name.to_lowercase();
+            name.contains("universal") && name.ends_with(".dmg")
+          })
+          .or_else(|| {
+            // Fallback to any DMG
+            assets.iter().find(|asset| asset.name.ends_with(".dmg"))
+          })
+      }
+      "linux" => {
+        // For Linux, be strict about architecture matching - same logic as has_compatible_brave_asset
+        let arch_pattern = if arch == "arm64" { "arm64" } else { "amd64" };
+
+        assets.iter().find(|asset| {
+          let name = asset.name.to_lowercase();
+          name.contains("linux") && name.contains(arch_pattern) && name.ends_with(".zip")
+        })
+      }
+      _ => None,
+    };
+
+    asset.map(|a| a.browser_download_url.clone())
+  }
+
+  /// Find the appropriate Zen asset for the current platform and architecture
+  fn find_zen_asset(
+    &self,
+    assets: &[crate::browser::GithubAsset],
+    os: &str,
+    arch: &str,
+  ) -> Option<String> {
+    // Zen asset naming patterns:
+    // Windows: zen.installer.exe, zen.installer-arm64.exe
+    // macOS: zen.macos-universal.dmg
+    // Linux: zen.linux-x86_64.tar.xz, zen.linux-aarch64.tar.xz, zen-x86_64.AppImage, zen-aarch64.AppImage
+
+    let asset = match (os, arch) {
+      ("windows", "x64") => assets
+        .iter()
+        .find(|asset| asset.name == "zen.installer.exe"),
+      ("windows", "arm64") => assets
+        .iter()
+        .find(|asset| asset.name == "zen.installer-arm64.exe"),
+      ("macos", _) => assets
+        .iter()
+        .find(|asset| asset.name == "zen.macos-universal.dmg"),
+      ("linux", "x64") => {
+        // Prefer tar.xz, fallback to AppImage
+        assets
+          .iter()
+          .find(|asset| asset.name == "zen.linux-x86_64.tar.xz")
+          .or_else(|| {
+            assets
+              .iter()
+              .find(|asset| asset.name == "zen-x86_64.AppImage")
+          })
+      }
+      ("linux", "arm64") => {
+        // Prefer tar.xz, fallback to AppImage
+        assets
+          .iter()
+          .find(|asset| asset.name == "zen.linux-aarch64.tar.xz")
+          .or_else(|| {
+            assets
+              .iter()
+              .find(|asset| asset.name == "zen-aarch64.AppImage")
+          })
+      }
+      _ => None,
+    };
+
+    asset.map(|a| a.browser_download_url.clone())
+  }
+
+  /// Find the appropriate Mullvad asset for the current platform and architecture
+  fn find_mullvad_asset(
+    &self,
+    assets: &[crate::browser::GithubAsset],
+    os: &str,
+    arch: &str,
+  ) -> Option<String> {
+    // Mullvad asset naming patterns:
+    // Windows: mullvad-browser-windows-x86_64-VERSION.exe
+    // macOS: mullvad-browser-macos-VERSION.dmg
+    // Linux: mullvad-browser-x86_64-VERSION.tar.xz
+
+    let asset = match (os, arch) {
+      ("windows", "x64") => assets.iter().find(|asset| {
+        asset.name.contains("windows")
+          && asset.name.contains("x86_64")
+          && asset.name.ends_with(".exe")
+      }),
+      ("windows", "arm64") => {
+        // Mullvad doesn't support ARM64 on Windows
+        None
+      }
+      ("macos", _) => assets
+        .iter()
+        .find(|asset| asset.name.contains("macos") && asset.name.ends_with(".dmg")),
+      ("linux", "x64") => assets.iter().find(|asset| {
+        asset.name.contains("x86_64")
+          && asset.name.ends_with(".tar.xz")
+          && !asset.name.contains("windows")
+      }),
+      ("linux", "arm64") => {
+        // Mullvad doesn't support ARM64 on Linux
+        None
+      }
+      _ => None,
+    };
+
+    asset.map(|a| a.browser_download_url.clone())
+  }
+
   pub async fn download_browser<R: tauri::Runtime>(
     &self,
     app_handle: &tauri::AppHandle<R>,
@@ -144,6 +314,10 @@ impl Downloader {
       .resolve_download_url(browser_type.clone(), version, download_info)
       .await?;
 
+    // Check if this is a twilight release for special handling
+    let is_twilight =
+      browser_type == BrowserType::Zen && version.to_lowercase().contains("twilight");
+
     // Emit initial progress
     let progress = DownloadProgress {
       browser: browser_type.as_str().to_string(),
@@ -153,7 +327,11 @@ impl Downloader {
       percentage: 0.0,
       speed_bytes_per_sec: 0.0,
       eta_seconds: None,
-      stage: "downloading".to_string(),
+      stage: if is_twilight {
+        "downloading (twilight rolling release)".to_string()
+      } else {
+        "downloading".to_string()
+      },
     };
 
     let _ = app_handle.emit("download-progress", &progress);
@@ -162,7 +340,7 @@ impl Downloader {
     let response = self
       .client
       .get(&download_url)
-      .header("User-Agent", "donutbrowser")
+      .header("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36")
       .send()
       .await?;
 
@@ -205,6 +383,12 @@ impl Downloader {
           None
         };
 
+        let stage_description = if is_twilight {
+          "downloading (twilight rolling release)".to_string()
+        } else {
+          "downloading".to_string()
+        };
+
         let progress = DownloadProgress {
           browser: browser_type.as_str().to_string(),
           version: version.to_string(),
@@ -213,7 +397,7 @@ impl Downloader {
           percentage,
           speed_bytes_per_sec: speed,
           eta_seconds: eta,
-          stage: "downloading".to_string(),
+          stage: stage_description,
         };
 
         let _ = app_handle.emit("download-progress", &progress);
@@ -233,7 +417,7 @@ mod tests {
   use crate::browser_version_service::DownloadInfo;
 
   use tempfile::TempDir;
-  use wiremock::matchers::{header, method, path};
+  use wiremock::matchers::{method, path, query_param};
   use wiremock::{Mock, MockServer, ResponseTemplate};
 
   async fn setup_mock_server() -> MockServer {
@@ -248,7 +432,6 @@ mod tests {
       base_url.clone(), // github_api_base
       base_url.clone(), // chromium_api_base
       base_url.clone(), // tor_archive_base
-      base_url.clone(), // mozilla_download_base
     )
   }
 
@@ -267,7 +450,8 @@ mod tests {
         "assets": [
           {
             "name": "brave-v1.81.9-universal.dmg",
-            "browser_download_url": "https://example.com/brave-1.81.9-universal.dmg"
+            "browser_download_url": "https://example.com/brave-1.81.9-universal.dmg",
+            "size": 200000000
           }
         ]
       }
@@ -275,7 +459,7 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/repos/brave/brave-browser/releases"))
-      .and(header("user-agent", "donutbrowser"))
+      .and(query_param("per_page", "100"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string(mock_response)
@@ -314,7 +498,8 @@ mod tests {
         "assets": [
           {
             "name": "zen.macos-universal.dmg",
-            "browser_download_url": "https://example.com/zen-1.11b-universal.dmg"
+            "browser_download_url": "https://example.com/zen-1.11b-universal.dmg",
+            "size": 120000000
           }
         ]
       }
@@ -322,7 +507,7 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/repos/zen-browser/desktop/releases"))
-      .and(header("user-agent", "donutbrowser"))
+      .and(query_param("per_page", "100"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string(mock_response)
@@ -361,7 +546,8 @@ mod tests {
         "assets": [
           {
             "name": "mullvad-browser-macos-14.5a6.dmg",
-            "browser_download_url": "https://example.com/mullvad-14.5a6.dmg"
+            "browser_download_url": "https://example.com/mullvad-14.5a6.dmg",
+            "size": 100000000
           }
         ]
       }
@@ -369,7 +555,7 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/repos/mullvad/mullvad-browser/releases"))
-      .and(header("user-agent", "donutbrowser"))
+      .and(query_param("per_page", "100"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string(mock_response)
@@ -471,7 +657,8 @@ mod tests {
         "assets": [
           {
             "name": "brave-v1.81.8-universal.dmg",
-            "browser_download_url": "https://example.com/brave-1.81.8-universal.dmg"
+            "browser_download_url": "https://example.com/brave-1.81.8-universal.dmg",
+            "size": 200000000
           }
         ]
       }
@@ -479,7 +666,7 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/repos/brave/brave-browser/releases"))
-      .and(header("user-agent", "donutbrowser"))
+      .and(query_param("per_page", "100"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string(mock_response)
@@ -520,7 +707,8 @@ mod tests {
         "assets": [
           {
             "name": "zen.linux-universal.tar.bz2",
-            "browser_download_url": "https://example.com/zen-1.11b-linux.tar.bz2"
+            "browser_download_url": "https://example.com/zen-1.11b-linux.tar.bz2",
+            "size": 150000000
           }
         ]
       }
@@ -528,7 +716,7 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/repos/zen-browser/desktop/releases"))
-      .and(header("user-agent", "donutbrowser"))
+      .and(query_param("per_page", "100"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string(mock_response)
@@ -551,7 +739,7 @@ mod tests {
     assert!(result
       .unwrap_err()
       .to_string()
-      .contains("No macOS universal asset found"));
+      .contains("No compatible asset found"));
   }
 
   #[tokio::test]
@@ -570,7 +758,6 @@ mod tests {
     // Mock the download endpoint
     Mock::given(method("GET"))
       .and(path("/test-download"))
-      .and(header("user-agent", "donutbrowser"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_bytes(test_content)
@@ -621,7 +808,6 @@ mod tests {
     // Mock a 404 response
     Mock::given(method("GET"))
       .and(path("/missing-file"))
-      .and(header("user-agent", "donutbrowser"))
       .respond_with(ResponseTemplate::new(404))
       .mount(&server)
       .await;
@@ -663,7 +849,8 @@ mod tests {
         "assets": [
           {
             "name": "mullvad-browser-linux-14.5a6.tar.xz",
-            "browser_download_url": "https://example.com/mullvad-14.5a6.tar.xz"
+            "browser_download_url": "https://example.com/mullvad-14.5a6.tar.xz",
+            "size": 80000000
           }
         ]
       }
@@ -671,7 +858,7 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/repos/mullvad/mullvad-browser/releases"))
-      .and(header("user-agent", "donutbrowser"))
+      .and(query_param("per_page", "100"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string(mock_response)
@@ -694,7 +881,7 @@ mod tests {
     assert!(result
       .unwrap_err()
       .to_string()
-      .contains("No macOS asset found"));
+      .contains("No compatible asset found"));
   }
 
   #[tokio::test]
@@ -712,7 +899,8 @@ mod tests {
         "assets": [
           {
             "name": "brave-v1.81.9-universal.dmg",
-            "browser_download_url": "https://example.com/brave-1.81.9-universal.dmg"
+            "browser_download_url": "https://example.com/brave-1.81.9-universal.dmg",
+            "size": 200000000
           }
         ]
       }
@@ -720,7 +908,7 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/repos/brave/brave-browser/releases"))
-      .and(header("user-agent", "donutbrowser"))
+      .and(query_param("per_page", "100"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_string(mock_response)
@@ -759,7 +947,6 @@ mod tests {
 
     Mock::given(method("GET"))
       .and(path("/chunked-download"))
-      .and(header("user-agent", "donutbrowser"))
       .respond_with(
         ResponseTemplate::new(200)
           .set_body_bytes(test_content.clone())

src-tauri/src/downloaded_browsers.rs

@@ -12,6 +12,9 @@ pub struct DownloadedBrowserInfo {
   pub file_path: PathBuf,
   pub verified: bool,
   pub actual_version: Option<String>, // For browsers like Chromium where we track the actual version
+  pub file_size: Option<u64>, // For tracking file size changes (useful for rolling releases)
+  #[serde(default)] // Add default value (false) for backwards compatibility
+  pub is_rolling_release: bool, // True for Zen's twilight releases and other rolling releases
 }
 
 #[derive(Debug, Serialize, Deserialize, Default)]
@@ -98,6 +101,7 @@ impl DownloadedBrowsersRegistry {
   }
 
   pub fn mark_download_started(&mut self, browser: &str, version: &str, file_path: PathBuf) {
+    let is_rolling = Self::is_rolling_release(browser, version);
     let info = DownloadedBrowserInfo {
       browser: browser.to_string(),
       version: version.to_string(),
@@ -108,6 +112,8 @@ impl DownloadedBrowsersRegistry {
       file_path,
       verified: false,
       actual_version: None,
+      file_size: None,
+      is_rolling_release: is_rolling,
     };
     self.add_browser(info);
   }
@@ -131,6 +137,11 @@ impl DownloadedBrowsersRegistry {
     }
   }
 
+  fn is_rolling_release(browser: &str, version: &str) -> bool {
+    // Check if this is a rolling release like twilight
+    browser == "zen" && version.to_lowercase() == "twilight"
+  }
+
   pub fn cleanup_failed_download(
     &mut self,
     browser: &str,
@@ -164,6 +175,48 @@ impl DownloadedBrowsersRegistry {
     }
     Ok(())
   }
+
+  /// Find and remove unused browser binaries that are not referenced by any active profiles
+  pub fn cleanup_unused_binaries(
+    &mut self,
+    active_profiles: &[(String, String)], // (browser, version) pairs
+  ) -> Result<Vec<String>, Box<dyn std::error::Error>> {
+    let active_set: std::collections::HashSet<(String, String)> =
+      active_profiles.iter().cloned().collect();
+    let mut cleaned_up = Vec::new();
+
+    // Collect all downloaded browsers that are not in active profiles
+    let mut to_remove = Vec::new();
+    for (browser, versions) in &self.browsers {
+      for (version, info) in versions {
+        if info.verified && !active_set.contains(&(browser.clone(), version.clone())) {
+          to_remove.push((browser.clone(), version.clone()));
+        }
+      }
+    }
+
+    // Remove unused binaries
+    for (browser, version) in to_remove {
+      if let Err(e) = self.cleanup_failed_download(&browser, &version) {
+        eprintln!("Failed to cleanup unused binary {browser}:{version}: {e}");
+      } else {
+        cleaned_up.push(format!("{browser} {version}"));
+      }
+    }
+
+    Ok(cleaned_up)
+  }
+
+  /// Get all browsers and versions referenced by active profiles
+  pub fn get_active_browser_versions(
+    &self,
+    profiles: &[crate::browser_runner::BrowserProfile],
+  ) -> Vec<(String, String)> {
+    profiles
+      .iter()
+      .map(|profile| (profile.browser.clone(), profile.version.clone()))
+      .collect()
+  }
 }
 
 #[cfg(test)]
@@ -186,6 +239,8 @@ mod tests {
       file_path: PathBuf::from("/test/path"),
       verified: true,
       actual_version: None,
+      file_size: None,
+      is_rolling_release: false,
     };
 
     registry.add_browser(info.clone());
@@ -206,6 +261,8 @@ mod tests {
       file_path: PathBuf::from("/test/path1"),
       verified: true,
       actual_version: None,
+      file_size: None,
+      is_rolling_release: false,
     };
 
     let info2 = DownloadedBrowserInfo {
@@ -215,6 +272,8 @@ mod tests {
       file_path: PathBuf::from("/test/path2"),
       verified: false, // Not verified, should not be included
       actual_version: None,
+      file_size: None,
+      is_rolling_release: false,
     };
 
     let info3 = DownloadedBrowserInfo {
@@ -224,6 +283,8 @@ mod tests {
       file_path: PathBuf::from("/test/path3"),
       verified: true,
       actual_version: None,
+      file_size: None,
+      is_rolling_release: false,
     };
 
     registry.add_browser(info1);
@@ -266,6 +327,8 @@ mod tests {
       file_path: PathBuf::from("/test/path"),
       verified: true,
       actual_version: None,
+      file_size: None,
+      is_rolling_release: false,
     };
 
     registry.add_browser(info);
@@ -275,4 +338,17 @@ mod tests {
     assert!(removed.is_some());
     assert!(!registry.is_browser_downloaded("firefox", "139.0"));
   }
+
+  #[test]
+  fn test_twilight_rolling_release() {
+    let mut registry = DownloadedBrowsersRegistry::new();
+
+    // Mark twilight download started
+    registry.mark_download_started("zen", "twilight", PathBuf::from("/test/zen-twilight"));
+
+    // Check that it's marked as rolling release
+    let zen_versions = &registry.browsers["zen"];
+    let twilight_info = &zen_versions["twilight"];
+    assert!(twilight_info.is_rolling_release);
+  }
 }

src-tauri/src/lib.rs

@@ -1,7 +1,6 @@
 // Learn more about Tauri commands at https://tauri.app/develop/calling-rust/
 use std::sync::Mutex;
-use std::time::{SystemTime, UNIX_EPOCH};
-use tauri::{Emitter, Manager};
+use tauri::{Emitter, Manager, Runtime, WebviewUrl, WebviewWindow, WebviewWindowBuilder};
 use tauri_plugin_deep_link::DeepLinkExt;
 
 // Store pending URLs that need to be handled when the window is ready
@@ -17,25 +16,26 @@ mod default_browser;
 mod download;
 mod downloaded_browsers;
 mod extraction;
+mod profile_importer;
 mod proxy_manager;
 mod settings_manager;
+mod theme_detector;
 mod version_updater;
 
 extern crate lazy_static;
 
 use browser_runner::{
-  check_browser_exists, check_browser_status, create_browser_profile, create_browser_profile_new,
-  delete_profile, download_browser, fetch_browser_versions, fetch_browser_versions_cached_first,
-  fetch_browser_versions_detailed, fetch_browser_versions_with_count,
-  fetch_browser_versions_with_count_cached_first, get_cached_browser_versions_detailed,
-  get_downloaded_browser_versions, get_saved_mullvad_releases, get_supported_browsers,
-  is_browser_downloaded, kill_browser_profile, launch_browser_profile, list_browser_profiles,
-  rename_profile, should_update_browser_cache, update_profile_proxy, update_profile_version,
+  check_browser_exists, check_browser_status, create_browser_profile_new, delete_profile,
+  download_browser, fetch_browser_versions_cached_first, fetch_browser_versions_with_count,
+  fetch_browser_versions_with_count_cached_first, get_downloaded_browser_versions,
+  get_supported_browsers, is_browser_supported_on_platform, kill_browser_profile,
+  launch_browser_profile, list_browser_profiles, rename_profile, update_profile_proxy,
+  update_profile_version,
 };
 
 use settings_manager::{
-  disable_default_browser_prompt, get_app_settings, get_table_sorting_settings, save_app_settings,
-  save_table_sorting_settings, should_show_settings_on_startup,
+  clear_all_version_cache_and_refetch, get_app_settings, get_table_sorting_settings,
+  save_app_settings, save_table_sorting_settings, should_show_settings_on_startup,
 };
 
 use default_browser::{
@@ -43,26 +43,66 @@ use default_browser::{
 };
 
 use version_updater::{
-  check_version_update_needed, force_version_update_check, get_version_update_status,
-  get_version_updater, trigger_manual_version_update,
+  get_version_update_status, get_version_updater, trigger_manual_version_update,
 };
 
 use auto_updater::{
-  check_for_browser_updates, complete_browser_update, complete_browser_update_with_auto_update,
-  dismiss_update_notification, is_auto_update_download, is_browser_disabled_for_update,
-  mark_auto_update_download, remove_auto_update_download, start_browser_update,
+  check_for_browser_updates, complete_browser_update_with_auto_update, dismiss_update_notification,
+  is_auto_update_download, is_browser_disabled_for_update, mark_auto_update_download,
+  remove_auto_update_download,
 };
 
 use app_auto_updater::{
   check_for_app_updates, check_for_app_updates_manual, download_and_install_app_update,
-  get_app_version_info,
 };
 
-#[tauri::command]
-fn greet() -> String {
-  let now = SystemTime::now();
-  let epoch_ms = now.duration_since(UNIX_EPOCH).unwrap().as_millis();
-  format!("Hello world from Rust! Current epoch: {epoch_ms}")
+use profile_importer::{detect_existing_profiles, import_browser_profile};
+
+use theme_detector::get_system_theme;
+
+// Trait to extend WebviewWindow with transparent titlebar functionality
+pub trait WindowExt {
+  #[cfg(target_os = "macos")]
+  fn set_transparent_titlebar(&self, transparent: bool) -> Result<(), String>;
+}
+
+impl<R: Runtime> WindowExt for WebviewWindow<R> {
+  #[cfg(target_os = "macos")]
+  fn set_transparent_titlebar(&self, transparent: bool) -> Result<(), String> {
+    use objc2::rc::Retained;
+    use objc2_app_kit::{NSWindow, NSWindowStyleMask, NSWindowTitleVisibility};
+
+    unsafe {
+      let ns_window: Retained<NSWindow> =
+        Retained::retain(self.ns_window().unwrap().cast()).unwrap();
+
+      if transparent {
+        // Hide the title text
+        ns_window.setTitleVisibility(NSWindowTitleVisibility(2)); // NSWindowTitleHidden
+
+        // Make titlebar transparent
+        ns_window.setTitlebarAppearsTransparent(true);
+
+        // Set full size content view
+        let current_mask = ns_window.styleMask();
+        let new_mask = NSWindowStyleMask(current_mask.0 | (1 << 15)); // NSFullSizeContentViewWindowMask
+        ns_window.setStyleMask(new_mask);
+      } else {
+        // Show the title text
+        ns_window.setTitleVisibility(NSWindowTitleVisibility(0)); // NSWindowTitleVisible
+
+        // Make titlebar opaque
+        ns_window.setTitlebarAppearsTransparent(false);
+
+        // Remove full size content view
+        let current_mask = ns_window.styleMask();
+        let new_mask = NSWindowStyleMask(current_mask.0 & !(1 << 15));
+        ns_window.setStyleMask(new_mask);
+      }
+    }
+
+    Ok(())
+  }
 }
 
 #[tauri::command]
@@ -131,7 +171,27 @@ pub fn run() {
     .plugin(tauri_plugin_opener::init())
     .plugin(tauri_plugin_shell::init())
     .plugin(tauri_plugin_deep_link::init())
+    .plugin(tauri_plugin_dialog::init())
     .setup(|app| {
+      // Create the main window programmatically
+      #[allow(unused_variables)]
+      let win_builder = WebviewWindowBuilder::new(app, "main", WebviewUrl::default())
+        .title("Donut Browser")
+        .inner_size(900.0, 600.0)
+        .resizable(false)
+        .fullscreen(false);
+
+      #[allow(unused_variables)]
+      let window = win_builder.build().unwrap();
+
+      // Set transparent titlebar for macOS
+      #[cfg(target_os = "macos")]
+      {
+        if let Err(e) = window.set_transparent_titlebar(true) {
+          eprintln!("Failed to set transparent titlebar: {e}");
+        }
+      }
+
       // Set up deep link handler
       let handle = app.handle().clone();
 
@@ -211,25 +271,18 @@ pub fn run() {
       Ok(())
     })
     .invoke_handler(tauri::generate_handler![
-      greet,
       get_supported_browsers,
+      is_browser_supported_on_platform,
       download_browser,
       delete_profile,
-      is_browser_downloaded,
       check_browser_exists,
       create_browser_profile_new,
-      create_browser_profile,
       list_browser_profiles,
       launch_browser_profile,
-      fetch_browser_versions,
-      fetch_browser_versions_detailed,
       fetch_browser_versions_with_count,
       fetch_browser_versions_cached_first,
       fetch_browser_versions_with_count_cached_first,
-      get_cached_browser_versions_detailed,
-      should_update_browser_cache,
       get_downloaded_browser_versions,
-      get_saved_mullvad_releases,
       update_profile_proxy,
       update_profile_version,
       check_browser_status,
@@ -238,22 +291,17 @@ pub fn run() {
       get_app_settings,
       save_app_settings,
       should_show_settings_on_startup,
-      disable_default_browser_prompt,
       get_table_sorting_settings,
       save_table_sorting_settings,
+      clear_all_version_cache_and_refetch,
       is_default_browser,
       open_url_with_profile,
       set_as_default_browser,
       smart_open_url,
-      handle_url_open,
       check_and_handle_startup_url,
       trigger_manual_version_update,
       get_version_update_status,
-      check_version_update_needed,
-      force_version_update_check,
       check_for_browser_updates,
-      start_browser_update,
-      complete_browser_update,
       is_browser_disabled_for_update,
       dismiss_update_notification,
       complete_browser_update_with_auto_update,
@@ -263,8 +311,171 @@ pub fn run() {
       check_for_app_updates,
       check_for_app_updates_manual,
       download_and_install_app_update,
-      get_app_version_info,
+      get_system_theme,
+      detect_existing_profiles,
+      import_browser_profile,
     ])
     .run(tauri::generate_context!())
     .expect("error while running tauri application");
 }
+
+#[cfg(test)]
+mod tests {
+  use std::fs;
+
+  #[test]
+  fn test_no_unused_tauri_commands() {
+    check_unused_commands(false); // Run in strict mode for CI
+  }
+
+  #[test]
+  fn test_unused_tauri_commands_detailed() {
+    check_unused_commands(true); // Run in verbose mode for development
+  }
+
+  fn check_unused_commands(verbose: bool) {
+    // Extract command names from the generate_handler! macro in this file
+    let lib_rs_content = fs::read_to_string("src/lib.rs").expect("Failed to read lib.rs");
+    let commands = extract_tauri_commands(&lib_rs_content);
+
+    // Get all frontend files
+    let frontend_files = get_frontend_files("../src");
+
+    // Check which commands are actually used
+    let mut unused_commands = Vec::new();
+    let mut used_commands = Vec::new();
+
+    for command in &commands {
+      let mut is_used = false;
+
+      for file_content in &frontend_files {
+        // More comprehensive search for command usage
+        if is_command_used(file_content, command) {
+          is_used = true;
+          break;
+        }
+      }
+
+      if is_used {
+        used_commands.push(command.clone());
+        if verbose {
+          println!("✅ {command}");
+        }
+      } else {
+        unused_commands.push(command.clone());
+        if verbose {
+          println!("❌ {command} (UNUSED)");
+        }
+      }
+    }
+
+    if verbose {
+      println!("\n📊 Summary:");
+      println!("  ✅ Used commands: {}", used_commands.len());
+      println!("  ❌ Unused commands: {}", unused_commands.len());
+    }
+
+    if !unused_commands.is_empty() {
+      let message = format!(
+        "Found {} unused Tauri commands: {}\n\nThese commands are exported in generate_handler! but not used in the frontend.\nConsider removing them or add them to the allowlist if they're used elsewhere.\n\nRun `pnpm check-unused-commands` for detailed analysis.",
+        unused_commands.len(),
+        unused_commands.join(", ")
+      );
+
+      if verbose {
+        println!("\n🚨 {message}");
+      } else {
+        panic!("{}", message);
+      }
+    } else if verbose {
+      println!("\n🎉 All exported commands are being used!");
+    } else {
+      println!(
+        "✅ All {} exported Tauri commands are being used in the frontend",
+        commands.len()
+      );
+    }
+  }
+
+  fn is_command_used(content: &str, command: &str) -> bool {
+    // Check various patterns for invoke usage
+    let patterns = vec![
+      format!("invoke<{}>(\"{}\"", "", command), // invoke<Type>("command"
+      format!("invoke(\"{}\"", command),         // invoke("command"
+      format!("invoke<{}>(\"{}\",", "", command), // invoke<Type>("command",
+      format!("invoke(\"{}\",", command),        // invoke("command",
+      format!("\"{}\"", command),                // Just the command name in quotes
+    ];
+
+    for pattern in patterns {
+      if content.contains(&pattern) {
+        return true;
+      }
+    }
+
+    // Also check for the command name appearing after "invoke" within a reasonable distance
+    if let Some(invoke_pos) = content.find("invoke") {
+      let after_invoke = &content[invoke_pos..];
+      if let Some(cmd_pos) = after_invoke.find(&format!("\"{command}\"")) {
+        // If the command appears within 100 characters of "invoke", consider it used
+        if cmd_pos < 100 {
+          return true;
+        }
+      }
+    }
+
+    false
+  }
+
+  fn extract_tauri_commands(content: &str) -> Vec<String> {
+    let mut commands = Vec::new();
+
+    // Find the generate_handler! macro
+    if let Some(start) = content.find("tauri::generate_handler![") {
+      if let Some(end) = content[start..].find("])") {
+        let handler_content = &content[start + 25..start + end]; // Skip "tauri::generate_handler!["
+
+        // Extract command names
+        for line in handler_content.lines() {
+          let line = line.trim();
+          if !line.is_empty() && !line.starts_with("//") {
+            // Remove trailing comma and whitespace
+            let command = line.trim_end_matches(',').trim();
+            if !command.is_empty() {
+              commands.push(command.to_string());
+            }
+          }
+        }
+      }
+    }
+
+    commands
+  }
+
+  fn get_frontend_files(src_dir: &str) -> Vec<String> {
+    let mut files_content = Vec::new();
+
+    if let Ok(entries) = fs::read_dir(src_dir) {
+      for entry in entries.flatten() {
+        let path = entry.path();
+
+        if path.is_dir() {
+          // Recursively read subdirectories
+          let subdir_files = get_frontend_files(&path.to_string_lossy());
+          files_content.extend(subdir_files);
+        } else if let Some(extension) = path.extension() {
+          if matches!(
+            extension.to_str(),
+            Some("ts") | Some("tsx") | Some("js") | Some("jsx")
+          ) {
+            if let Ok(content) = fs::read_to_string(&path) {
+              files_content.push(content);
+            }
+          }
+        }
+      }
+    }
+
+    files_content
+  }
+}

src-tauri/src/profile_importer.rs

@@ -0,0 +1,661 @@
+use directories::BaseDirs;
+use serde::{Deserialize, Serialize};
+use std::collections::HashSet;
+use std::fs::{self, create_dir_all};
+use std::path::{Path, PathBuf};
+
+use crate::browser::BrowserType;
+use crate::browser_runner::BrowserRunner;
+
+#[derive(Debug, Serialize, Deserialize, Clone)]
+pub struct DetectedProfile {
+  pub browser: String,
+  pub name: String,
+  pub path: String,
+  pub description: String,
+}
+
+pub struct ProfileImporter {
+  base_dirs: BaseDirs,
+  browser_runner: BrowserRunner,
+}
+
+impl ProfileImporter {
+  pub fn new() -> Self {
+    Self {
+      base_dirs: BaseDirs::new().expect("Failed to get base directories"),
+      browser_runner: BrowserRunner::new(),
+    }
+  }
+
+  /// Detect existing browser profiles on the system
+  pub fn detect_existing_profiles(
+    &self,
+  ) -> Result<Vec<DetectedProfile>, Box<dyn std::error::Error>> {
+    let mut detected_profiles = Vec::new();
+
+    // Detect Firefox profiles
+    detected_profiles.extend(self.detect_firefox_profiles()?);
+
+    // Detect Chrome profiles
+    detected_profiles.extend(self.detect_chrome_profiles()?);
+
+    // Detect Brave profiles
+    detected_profiles.extend(self.detect_brave_profiles()?);
+
+    // Detect Firefox Developer Edition profiles
+    detected_profiles.extend(self.detect_firefox_developer_profiles()?);
+
+    // Detect Chromium profiles
+    detected_profiles.extend(self.detect_chromium_profiles()?);
+
+    // Detect Mullvad Browser profiles
+    detected_profiles.extend(self.detect_mullvad_browser_profiles()?);
+
+    // Detect Zen Browser profiles
+    detected_profiles.extend(self.detect_zen_browser_profiles()?);
+
+    // Remove duplicates based on path
+    let mut seen_paths = HashSet::new();
+    let unique_profiles: Vec<DetectedProfile> = detected_profiles
+      .into_iter()
+      .filter(|profile| seen_paths.insert(profile.path.clone()))
+      .collect();
+
+    Ok(unique_profiles)
+  }
+
+  /// Detect Firefox profiles
+  fn detect_firefox_profiles(&self) -> Result<Vec<DetectedProfile>, Box<dyn std::error::Error>> {
+    let mut profiles = Vec::new();
+
+    #[cfg(target_os = "macos")]
+    {
+      let firefox_dir = self
+        .base_dirs
+        .home_dir()
+        .join("Library/Application Support/Firefox/Profiles");
+      profiles.extend(self.scan_firefox_profiles_dir(&firefox_dir, "firefox")?);
+    }
+
+    #[cfg(target_os = "windows")]
+    {
+      if let Some(app_data) = self.base_dirs.data_dir() {
+        let firefox_dir = app_data.join("Mozilla/Firefox/Profiles");
+        profiles.extend(self.scan_firefox_profiles_dir(&firefox_dir, "firefox")?);
+      }
+    }
+
+    #[cfg(target_os = "linux")]
+    {
+      let firefox_dir = self.base_dirs.home_dir().join(".mozilla/firefox");
+      profiles.extend(self.scan_firefox_profiles_dir(&firefox_dir, "firefox")?);
+    }
+
+    Ok(profiles)
+  }
+
+  /// Detect Firefox Developer Edition profiles
+  fn detect_firefox_developer_profiles(
+    &self,
+  ) -> Result<Vec<DetectedProfile>, Box<dyn std::error::Error>> {
+    let mut profiles = Vec::new();
+
+    #[cfg(target_os = "macos")]
+    {
+      // Firefox Developer Edition on macOS uses separate profile directories
+      let firefox_dev_alt_dir = self
+        .base_dirs
+        .home_dir()
+        .join("Library/Application Support/Firefox Developer Edition/Profiles");
+
+      // Only scan the dedicated dev edition directory if it exists, otherwise skip to avoid duplicates
+      if firefox_dev_alt_dir.exists() {
+        profiles.extend(self.scan_firefox_profiles_dir(&firefox_dev_alt_dir, "firefox-developer")?);
+      }
+    }
+
+    #[cfg(target_os = "windows")]
+    {
+      if let Some(app_data) = self.base_dirs.data_dir() {
+        // Firefox Developer Edition on Windows typically uses separate directories
+        let firefox_dev_dir = app_data.join("Mozilla/Firefox Developer Edition/Profiles");
+        if firefox_dev_dir.exists() {
+          profiles.extend(self.scan_firefox_profiles_dir(&firefox_dev_dir, "firefox-developer")?);
+        }
+      }
+    }
+
+    #[cfg(target_os = "linux")]
+    {
+      // Firefox Developer Edition on Linux uses separate directories
+      let firefox_dev_dir = self
+        .base_dirs
+        .home_dir()
+        .join(".mozilla/firefox-dev-edition");
+      if firefox_dev_dir.exists() {
+        profiles.extend(self.scan_firefox_profiles_dir(&firefox_dev_dir, "firefox-developer")?);
+      }
+    }
+
+    Ok(profiles)
+  }
+
+  /// Detect Chrome profiles
+  fn detect_chrome_profiles(&self) -> Result<Vec<DetectedProfile>, Box<dyn std::error::Error>> {
+    let mut profiles = Vec::new();
+
+    #[cfg(target_os = "macos")]
+    {
+      let chrome_dir = self
+        .base_dirs
+        .home_dir()
+        .join("Library/Application Support/Google/Chrome");
+      profiles.extend(self.scan_chrome_profiles_dir(&chrome_dir, "chromium")?);
+    }
+
+    #[cfg(target_os = "windows")]
+    {
+      if let Some(local_app_data) = self.base_dirs.data_local_dir() {
+        let chrome_dir = local_app_data.join("Google/Chrome/User Data");
+        profiles.extend(self.scan_chrome_profiles_dir(&chrome_dir, "chromium")?);
+      }
+    }
+
+    #[cfg(target_os = "linux")]
+    {
+      let chrome_dir = self.base_dirs.home_dir().join(".config/google-chrome");
+      profiles.extend(self.scan_chrome_profiles_dir(&chrome_dir, "chromium")?);
+    }
+
+    Ok(profiles)
+  }
+
+  /// Detect Chromium profiles
+  fn detect_chromium_profiles(&self) -> Result<Vec<DetectedProfile>, Box<dyn std::error::Error>> {
+    let mut profiles = Vec::new();
+
+    #[cfg(target_os = "macos")]
+    {
+      let chromium_dir = self
+        .base_dirs
+        .home_dir()
+        .join("Library/Application Support/Chromium");
+      profiles.extend(self.scan_chrome_profiles_dir(&chromium_dir, "chromium")?);
+    }
+
+    #[cfg(target_os = "windows")]
+    {
+      if let Some(local_app_data) = self.base_dirs.data_local_dir() {
+        let chromium_dir = local_app_data.join("Chromium/User Data");
+        profiles.extend(self.scan_chrome_profiles_dir(&chromium_dir, "chromium")?);
+      }
+    }
+
+    #[cfg(target_os = "linux")]
+    {
+      let chromium_dir = self.base_dirs.home_dir().join(".config/chromium");
+      profiles.extend(self.scan_chrome_profiles_dir(&chromium_dir, "chromium")?);
+    }
+
+    Ok(profiles)
+  }
+
+  /// Detect Brave profiles
+  fn detect_brave_profiles(&self) -> Result<Vec<DetectedProfile>, Box<dyn std::error::Error>> {
+    let mut profiles = Vec::new();
+
+    #[cfg(target_os = "macos")]
+    {
+      let brave_dir = self
+        .base_dirs
+        .home_dir()
+        .join("Library/Application Support/BraveSoftware/Brave-Browser");
+      profiles.extend(self.scan_chrome_profiles_dir(&brave_dir, "brave")?);
+    }
+
+    #[cfg(target_os = "windows")]
+    {
+      if let Some(local_app_data) = self.base_dirs.data_local_dir() {
+        let brave_dir = local_app_data.join("BraveSoftware/Brave-Browser/User Data");
+        profiles.extend(self.scan_chrome_profiles_dir(&brave_dir, "brave")?);
+      }
+    }
+
+    #[cfg(target_os = "linux")]
+    {
+      let brave_dir = self
+        .base_dirs
+        .home_dir()
+        .join(".config/BraveSoftware/Brave-Browser");
+      profiles.extend(self.scan_chrome_profiles_dir(&brave_dir, "brave")?);
+    }
+
+    Ok(profiles)
+  }
+
+  /// Detect Mullvad Browser profiles
+  fn detect_mullvad_browser_profiles(
+    &self,
+  ) -> Result<Vec<DetectedProfile>, Box<dyn std::error::Error>> {
+    let mut profiles = Vec::new();
+
+    #[cfg(target_os = "macos")]
+    {
+      let mullvad_dir = self
+        .base_dirs
+        .home_dir()
+        .join("Library/Application Support/MullvadBrowser/Profiles");
+      profiles.extend(self.scan_firefox_profiles_dir(&mullvad_dir, "mullvad-browser")?);
+    }
+
+    #[cfg(target_os = "windows")]
+    {
+      if let Some(app_data) = self.base_dirs.data_dir() {
+        let mullvad_dir = app_data.join("MullvadBrowser/Profiles");
+        profiles.extend(self.scan_firefox_profiles_dir(&mullvad_dir, "mullvad-browser")?);
+      }
+    }
+
+    #[cfg(target_os = "linux")]
+    {
+      let mullvad_dir = self.base_dirs.home_dir().join(".mullvad-browser");
+      profiles.extend(self.scan_firefox_profiles_dir(&mullvad_dir, "mullvad-browser")?);
+    }
+
+    Ok(profiles)
+  }
+
+  /// Detect Zen Browser profiles
+  fn detect_zen_browser_profiles(
+    &self,
+  ) -> Result<Vec<DetectedProfile>, Box<dyn std::error::Error>> {
+    let mut profiles = Vec::new();
+
+    #[cfg(target_os = "macos")]
+    {
+      let zen_dir = self
+        .base_dirs
+        .home_dir()
+        .join("Library/Application Support/Zen/Profiles");
+      profiles.extend(self.scan_firefox_profiles_dir(&zen_dir, "zen")?);
+    }
+
+    #[cfg(target_os = "windows")]
+    {
+      if let Some(app_data) = self.base_dirs.data_dir() {
+        let zen_dir = app_data.join("Zen/Profiles");
+        profiles.extend(self.scan_firefox_profiles_dir(&zen_dir, "zen")?);
+      }
+    }
+
+    #[cfg(target_os = "linux")]
+    {
+      let zen_dir = self.base_dirs.home_dir().join(".zen");
+      profiles.extend(self.scan_firefox_profiles_dir(&zen_dir, "zen")?);
+    }
+
+    Ok(profiles)
+  }
+
+  /// Scan Firefox-style profiles directory
+  fn scan_firefox_profiles_dir(
+    &self,
+    profiles_dir: &Path,
+    browser_type: &str,
+  ) -> Result<Vec<DetectedProfile>, Box<dyn std::error::Error>> {
+    let mut profiles = Vec::new();
+
+    if !profiles_dir.exists() {
+      return Ok(profiles);
+    }
+
+    // Read profiles.ini file if it exists
+    let profiles_ini = profiles_dir
+      .parent()
+      .unwrap_or(profiles_dir)
+      .join("profiles.ini");
+    if profiles_ini.exists() {
+      if let Ok(content) = fs::read_to_string(&profiles_ini) {
+        profiles.extend(self.parse_firefox_profiles_ini(&content, profiles_dir, browser_type)?);
+      }
+    }
+
+    // Also scan directory for any profile folders not in profiles.ini
+    if let Ok(entries) = fs::read_dir(profiles_dir) {
+      for entry in entries.flatten() {
+        let path = entry.path();
+        if path.is_dir() {
+          let prefs_file = path.join("prefs.js");
+          if prefs_file.exists() {
+            let profile_name = path
+              .file_name()
+              .and_then(|n| n.to_str())
+              .unwrap_or("Unknown Profile");
+
+            // Check if this profile was already found in profiles.ini
+            let already_added = profiles.iter().any(|p| p.path == path.to_string_lossy());
+            if !already_added {
+              profiles.push(DetectedProfile {
+                browser: browser_type.to_string(),
+                name: format!(
+                  "{} Profile - {}",
+                  self.get_browser_display_name(browser_type),
+                  profile_name
+                ),
+                path: path.to_string_lossy().to_string(),
+                description: format!("Profile folder: {profile_name}"),
+              });
+            }
+          }
+        }
+      }
+    }
+
+    Ok(profiles)
+  }
+
+  /// Parse Firefox profiles.ini file
+  fn parse_firefox_profiles_ini(
+    &self,
+    content: &str,
+    profiles_dir: &Path,
+    browser_type: &str,
+  ) -> Result<Vec<DetectedProfile>, Box<dyn std::error::Error>> {
+    let mut profiles = Vec::new();
+    let mut current_section = String::new();
+    let mut profile_name = String::new();
+    let mut profile_path = String::new();
+    let mut is_relative = true;
+
+    for line in content.lines() {
+      let line = line.trim();
+
+      if line.starts_with('[') && line.ends_with(']') {
+        // Save previous profile if complete
+        if !current_section.is_empty()
+          && current_section.starts_with("Profile")
+          && !profile_path.is_empty()
+        {
+          let full_path = if is_relative {
+            profiles_dir.join(&profile_path)
+          } else {
+            PathBuf::from(&profile_path)
+          };
+
+          if full_path.exists() {
+            let display_name = if profile_name.is_empty() {
+              format!("{} Profile", self.get_browser_display_name(browser_type))
+            } else {
+              format!(
+                "{} - {}",
+                self.get_browser_display_name(browser_type),
+                profile_name
+              )
+            };
+
+            profiles.push(DetectedProfile {
+              browser: browser_type.to_string(),
+              name: display_name,
+              path: full_path.to_string_lossy().to_string(),
+              description: format!("Profile: {profile_name}"),
+            });
+          }
+        }
+
+        // Start new section
+        current_section = line[1..line.len() - 1].to_string();
+        profile_name.clear();
+        profile_path.clear();
+        is_relative = true;
+      } else if line.contains('=') {
+        let parts: Vec<&str> = line.splitn(2, '=').collect();
+        if parts.len() == 2 {
+          let key = parts[0].trim();
+          let value = parts[1].trim();
+
+          match key {
+            "Name" => profile_name = value.to_string(),
+            "Path" => profile_path = value.to_string(),
+            "IsRelative" => is_relative = value == "1",
+            _ => {}
+          }
+        }
+      }
+    }
+
+    // Handle last profile
+    if !current_section.is_empty()
+      && current_section.starts_with("Profile")
+      && !profile_path.is_empty()
+    {
+      let full_path = if is_relative {
+        profiles_dir.join(&profile_path)
+      } else {
+        PathBuf::from(&profile_path)
+      };
+
+      if full_path.exists() {
+        let display_name = if profile_name.is_empty() {
+          format!("{} Profile", self.get_browser_display_name(browser_type))
+        } else {
+          format!(
+            "{} - {}",
+            self.get_browser_display_name(browser_type),
+            profile_name
+          )
+        };
+
+        profiles.push(DetectedProfile {
+          browser: browser_type.to_string(),
+          name: display_name,
+          path: full_path.to_string_lossy().to_string(),
+          description: format!("Profile: {profile_name}"),
+        });
+      }
+    }
+
+    Ok(profiles)
+  }
+
+  /// Scan Chrome-style profiles directory
+  fn scan_chrome_profiles_dir(
+    &self,
+    browser_dir: &Path,
+    browser_type: &str,
+  ) -> Result<Vec<DetectedProfile>, Box<dyn std::error::Error>> {
+    let mut profiles = Vec::new();
+
+    if !browser_dir.exists() {
+      return Ok(profiles);
+    }
+
+    // Check for Default profile
+    let default_profile = browser_dir.join("Default");
+    if default_profile.exists() && default_profile.join("Preferences").exists() {
+      profiles.push(DetectedProfile {
+        browser: browser_type.to_string(),
+        name: format!(
+          "{} - Default Profile",
+          self.get_browser_display_name(browser_type)
+        ),
+        path: default_profile.to_string_lossy().to_string(),
+        description: "Default profile".to_string(),
+      });
+    }
+
+    // Check for Profile X directories
+    if let Ok(entries) = fs::read_dir(browser_dir) {
+      for entry in entries.flatten() {
+        let path = entry.path();
+        if path.is_dir() {
+          let dir_name = path.file_name().and_then(|n| n.to_str()).unwrap_or("");
+
+          if dir_name.starts_with("Profile ") && path.join("Preferences").exists() {
+            let profile_number = &dir_name[8..]; // Remove "Profile " prefix
+            profiles.push(DetectedProfile {
+              browser: browser_type.to_string(),
+              name: format!(
+                "{} - Profile {}",
+                self.get_browser_display_name(browser_type),
+                profile_number
+              ),
+              path: path.to_string_lossy().to_string(),
+              description: format!("Profile {profile_number}"),
+            });
+          }
+        }
+      }
+    }
+
+    Ok(profiles)
+  }
+
+  /// Get browser display name
+  fn get_browser_display_name(&self, browser_type: &str) -> &str {
+    match browser_type {
+      "firefox" => "Firefox",
+      "firefox-developer" => "Firefox Developer",
+      "chromium" => "Chrome/Chromium",
+      "brave" => "Brave",
+      "mullvad-browser" => "Mullvad Browser",
+      "zen" => "Zen Browser",
+      "tor-browser" => "Tor Browser",
+      _ => "Unknown Browser",
+    }
+  }
+
+  /// Import a profile from an existing browser profile
+  pub fn import_profile(
+    &self,
+    source_path: &str,
+    browser_type: &str,
+    new_profile_name: &str,
+  ) -> Result<(), Box<dyn std::error::Error>> {
+    // Validate that source path exists
+    let source_path = Path::new(source_path);
+    if !source_path.exists() {
+      return Err("Source profile path does not exist".into());
+    }
+
+    // Validate browser type
+    let _browser_type = BrowserType::from_str(browser_type)
+      .map_err(|_| format!("Invalid browser type: {browser_type}"))?;
+
+    // Check if a profile with this name already exists
+    let existing_profiles = self.browser_runner.list_profiles()?;
+    if existing_profiles
+      .iter()
+      .any(|p| p.name.to_lowercase() == new_profile_name.to_lowercase())
+    {
+      return Err(format!("Profile with name '{new_profile_name}' already exists").into());
+    }
+
+    // Create the new profile directory
+    let snake_case_name = new_profile_name.to_lowercase().replace(' ', "_");
+    let profiles_dir = self.browser_runner.get_profiles_dir();
+    let new_profile_path = profiles_dir.join(&snake_case_name);
+
+    create_dir_all(&new_profile_path)?;
+
+    // Copy all files from source to destination
+    Self::copy_directory_recursive(source_path, &new_profile_path)?;
+
+    // Create the profile metadata without overwriting the imported data
+    // We need to find a suitable version for this browser type
+    let available_versions = self.get_default_version_for_browser(browser_type)?;
+
+    let profile = crate::browser_runner::BrowserProfile {
+      name: new_profile_name.to_string(),
+      browser: browser_type.to_string(),
+      version: available_versions,
+      profile_path: new_profile_path.to_string_lossy().to_string(),
+      proxy: None,
+      process_id: None,
+      last_launch: None,
+    };
+
+    // Save the profile metadata
+    self.browser_runner.save_profile(&profile)?;
+
+    println!(
+      "Successfully imported profile '{}' from '{}'",
+      new_profile_name,
+      source_path.display()
+    );
+
+    Ok(())
+  }
+
+  /// Get a default version for a browser type
+  fn get_default_version_for_browser(
+    &self,
+    browser_type: &str,
+  ) -> Result<String, Box<dyn std::error::Error>> {
+    // Try to get a downloaded version first, fallback to a reasonable default
+    let registry =
+      crate::downloaded_browsers::DownloadedBrowsersRegistry::load().unwrap_or_default();
+    let downloaded_versions = registry.get_downloaded_versions(browser_type);
+
+    if let Some(version) = downloaded_versions.first() {
+      return Ok(version.clone());
+    }
+
+    // If no downloaded versions, return a sensible default
+    match browser_type {
+      "firefox" => Ok("latest".to_string()),
+      "firefox-developer" => Ok("latest".to_string()),
+      "chromium" => Ok("latest".to_string()),
+      "brave" => Ok("latest".to_string()),
+      "zen" => Ok("latest".to_string()),
+      "mullvad-browser" => Ok("13.5.16".to_string()), // Mullvad Browser common version
+      "tor-browser" => Ok("latest".to_string()),
+      _ => Ok("latest".to_string()),
+    }
+  }
+
+  /// Recursively copy directory contents
+  fn copy_directory_recursive(
+    source: &Path,
+    destination: &Path,
+  ) -> Result<(), Box<dyn std::error::Error>> {
+    if !destination.exists() {
+      create_dir_all(destination)?;
+    }
+
+    for entry in fs::read_dir(source)? {
+      let entry = entry?;
+      let source_path = entry.path();
+      let dest_path = destination.join(entry.file_name());
+
+      if source_path.is_dir() {
+        Self::copy_directory_recursive(&source_path, &dest_path)?;
+      } else {
+        fs::copy(&source_path, &dest_path)?;
+      }
+    }
+
+    Ok(())
+  }
+}
+
+// Tauri commands
+#[tauri::command]
+pub async fn detect_existing_profiles() -> Result<Vec<DetectedProfile>, String> {
+  let importer = ProfileImporter::new();
+  importer
+    .detect_existing_profiles()
+    .map_err(|e| format!("Failed to detect existing profiles: {e}"))
+}
+
+#[tauri::command]
+pub async fn import_browser_profile(
+  source_path: String,
+  browser_type: String,
+  new_profile_name: String,
+) -> Result<(), String> {
+  let importer = ProfileImporter::new();
+  importer
+    .import_profile(&source_path, &browser_type, &new_profile_name)
+    .map_err(|e| format!("Failed to import profile: {e}"))
+}

src-tauri/src/settings_manager.rs

@@ -3,6 +3,9 @@ use serde::{Deserialize, Serialize};
 use std::fs::{self, create_dir_all};
 use std::path::PathBuf;
 
+use crate::api_client::ApiClient;
+use crate::browser_version_service::BrowserVersionService;
+
 #[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct TableSortingSettings {
   pub column: String,    // Column to sort by: "name", "browser", "status"
@@ -28,6 +31,8 @@ pub struct AppSettings {
   pub theme: String, // "light", "dark", or "system"
   #[serde(default = "default_auto_updates_enabled")]
   pub auto_updates_enabled: bool,
+  #[serde(default = "default_auto_delete_unused_binaries")]
+  pub auto_delete_unused_binaries: bool,
 }
 
 fn default_show_settings_on_startup() -> bool {
@@ -42,6 +47,10 @@ fn default_auto_updates_enabled() -> bool {
   true
 }
 
+fn default_auto_delete_unused_binaries() -> bool {
+  true
+}
+
 impl Default for AppSettings {
   fn default() -> Self {
     Self {
@@ -49,6 +58,7 @@ impl Default for AppSettings {
       show_settings_on_startup: default_show_settings_on_startup(),
       theme: default_theme(),
       auto_updates_enabled: default_auto_updates_enabled(),
+      auto_delete_unused_binaries: default_auto_delete_unused_binaries(),
     }
   }
 }
@@ -163,13 +173,6 @@ impl SettingsManager {
     // 3. User hasn't explicitly disabled the default browser setting
     Ok(settings.show_settings_on_startup && !settings.set_as_default_browser)
   }
-
-  pub fn disable_default_browser_prompt(&self) -> Result<(), Box<dyn std::error::Error>> {
-    let mut settings = self.load_settings()?;
-    settings.show_settings_on_startup = false;
-    self.save_settings(&settings)?;
-    Ok(())
-  }
 }
 
 #[tauri::command]
@@ -196,14 +199,6 @@ pub async fn should_show_settings_on_startup() -> Result<bool, String> {
     .map_err(|e| format!("Failed to check prompt setting: {e}"))
 }
 
-#[tauri::command]
-pub async fn disable_default_browser_prompt() -> Result<(), String> {
-  let manager = SettingsManager::new();
-  manager
-    .disable_default_browser_prompt()
-    .map_err(|e| format!("Failed to disable prompt: {e}"))
-}
-
 #[tauri::command]
 pub async fn get_table_sorting_settings() -> Result<TableSortingSettings, String> {
   let manager = SettingsManager::new();
@@ -219,3 +214,33 @@ pub async fn save_table_sorting_settings(sorting: TableSortingSettings) -> Resul
     .save_table_sorting(&sorting)
     .map_err(|e| format!("Failed to save table sorting settings: {e}"))
 }
+
+#[tauri::command]
+pub async fn clear_all_version_cache_and_refetch() -> Result<(), String> {
+  let api_client = ApiClient::new();
+
+  // Clear all cache first
+  api_client
+    .clear_all_cache()
+    .map_err(|e| format!("Failed to clear version cache: {e}"))?;
+
+  // Trigger auto-fetch for all supported browsers
+  let service = BrowserVersionService::new();
+  let supported_browsers = service.get_supported_browsers();
+
+  for browser in supported_browsers {
+    // Start background fetch for each browser (don't wait for completion)
+    let service_clone = BrowserVersionService::new();
+    let browser_clone = browser.clone();
+    tokio::spawn(async move {
+      if let Err(e) = service_clone
+        .fetch_browser_versions_detailed(&browser_clone, false)
+        .await
+      {
+        eprintln!("Background version fetch failed for {browser_clone}: {e}");
+      }
+    });
+  }
+
+  Ok(())
+}

src-tauri/src/theme_detector.rs

@@ -0,0 +1,539 @@
+use serde::{Deserialize, Serialize};
+use std::process::Command;
+
+#[derive(Debug, Serialize, Deserialize, Clone)]
+pub struct SystemTheme {
+  pub theme: String, // "light", "dark", or "unknown"
+}
+
+pub struct ThemeDetector;
+
+impl ThemeDetector {
+  pub fn new() -> Self {
+    Self
+  }
+
+  /// Detect the system theme preference
+  pub fn detect_system_theme(&self) -> SystemTheme {
+    #[cfg(target_os = "linux")]
+    return linux::detect_system_theme();
+
+    #[cfg(target_os = "macos")]
+    return macos::detect_system_theme();
+
+    #[cfg(target_os = "windows")]
+    return windows::detect_system_theme();
+
+    #[cfg(not(any(target_os = "linux", target_os = "macos", target_os = "windows")))]
+    return SystemTheme {
+      theme: "unknown".to_string(),
+    };
+  }
+}
+
+#[cfg(target_os = "linux")]
+mod linux {
+  use super::*;
+
+  pub fn detect_system_theme() -> SystemTheme {
+    // Try multiple methods in order of preference
+
+    // 1. Try GNOME/GTK settings via gsettings
+    if let Ok(theme) = detect_gnome_theme() {
+      return SystemTheme { theme };
+    }
+
+    // 2. Try KDE Plasma settings via kreadconfig5/kreadconfig6
+    if let Ok(theme) = detect_kde_theme() {
+      return SystemTheme { theme };
+    }
+
+    // 3. Try XFCE settings via xfconf-query
+    if let Ok(theme) = detect_xfce_theme() {
+      return SystemTheme { theme };
+    }
+
+    // 4. Try looking at current GTK theme name
+    if let Ok(theme) = detect_gtk_theme() {
+      return SystemTheme { theme };
+    }
+
+    // 5. Try dconf directly (fallback for GNOME-based systems)
+    if let Ok(theme) = detect_dconf_theme() {
+      return SystemTheme { theme };
+    }
+
+    // 6. Try environment variables
+    if let Ok(theme) = detect_env_theme() {
+      return SystemTheme { theme };
+    }
+
+    // 7. Try freedesktop portal
+    if let Ok(theme) = detect_portal_theme() {
+      return SystemTheme { theme };
+    }
+
+    // 8. Try looking at system color scheme files
+    if let Ok(theme) = detect_system_files_theme() {
+      return SystemTheme { theme };
+    }
+
+    // Fallback to unknown
+    SystemTheme {
+      theme: "unknown".to_string(),
+    }
+  }
+
+  fn detect_gnome_theme() -> Result<String, Box<dyn std::error::Error>> {
+    // Check if gsettings is available
+    if !is_command_available("gsettings") {
+      return Err("gsettings not available".into());
+    }
+
+    // Try GNOME color scheme first (modern way)
+    if let Ok(output) = Command::new("gsettings")
+      .args(["get", "org.gnome.desktop.interface", "color-scheme"])
+      .output()
+    {
+      if output.status.success() {
+        let scheme = String::from_utf8_lossy(&output.stdout).trim().to_string();
+        match scheme.as_str() {
+          "'prefer-dark'" => return Ok("dark".to_string()),
+          "'prefer-light'" => return Ok("light".to_string()),
+          _ => {}
+        }
+      }
+    }
+
+    // Fallback to GTK theme name detection
+    if let Ok(output) = Command::new("gsettings")
+      .args(["get", "org.gnome.desktop.interface", "gtk-theme"])
+      .output()
+    {
+      if output.status.success() {
+        let theme_name = String::from_utf8_lossy(&output.stdout)
+          .trim()
+          .trim_matches('\'')
+          .to_lowercase();
+
+        if theme_name.contains("dark") || theme_name.contains("night") {
+          return Ok("dark".to_string());
+        } else if theme_name.contains("light") || theme_name.contains("adwaita") {
+          return Ok("light".to_string());
+        }
+      }
+    }
+
+    Err("Could not detect GNOME theme".into())
+  }
+
+  fn detect_kde_theme() -> Result<String, Box<dyn std::error::Error>> {
+    // Try KDE Plasma 6 first
+    if is_command_available("kreadconfig6") {
+      if let Ok(output) = Command::new("kreadconfig6")
+        .args([
+          "--file",
+          "kdeglobals",
+          "--group",
+          "KDE",
+          "--key",
+          "LookAndFeelPackage",
+        ])
+        .output()
+      {
+        if output.status.success() {
+          let theme = String::from_utf8_lossy(&output.stdout)
+            .trim()
+            .to_lowercase();
+          if theme.contains("dark") || theme.contains("breezedark") {
+            return Ok("dark".to_string());
+          } else if theme.contains("light") || theme.contains("breeze") {
+            return Ok("light".to_string());
+          }
+        }
+      }
+
+      // Try color scheme as well
+      if let Ok(output) = Command::new("kreadconfig6")
+        .args([
+          "--file",
+          "kdeglobals",
+          "--group",
+          "General",
+          "--key",
+          "ColorScheme",
+        ])
+        .output()
+      {
+        if output.status.success() {
+          let scheme = String::from_utf8_lossy(&output.stdout)
+            .trim()
+            .to_lowercase();
+          if scheme.contains("dark") || scheme.contains("breezedark") {
+            return Ok("dark".to_string());
+          } else if scheme.contains("light") || scheme.contains("breeze") {
+            return Ok("light".to_string());
+          }
+        }
+      }
+    }
+
+    // Try KDE Plasma 5 as fallback
+    if is_command_available("kreadconfig5") {
+      if let Ok(output) = Command::new("kreadconfig5")
+        .args([
+          "--file",
+          "kdeglobals",
+          "--group",
+          "KDE",
+          "--key",
+          "LookAndFeelPackage",
+        ])
+        .output()
+      {
+        if output.status.success() {
+          let theme = String::from_utf8_lossy(&output.stdout)
+            .trim()
+            .to_lowercase();
+          if theme.contains("dark") || theme.contains("breezedark") {
+            return Ok("dark".to_string());
+          } else if theme.contains("light") || theme.contains("breeze") {
+            return Ok("light".to_string());
+          }
+        }
+      }
+    }
+
+    Err("Could not detect KDE theme".into())
+  }
+
+  fn detect_xfce_theme() -> Result<String, Box<dyn std::error::Error>> {
+    if !is_command_available("xfconf-query") {
+      return Err("xfconf-query not available".into());
+    }
+
+    // Check XFCE theme
+    if let Ok(output) = Command::new("xfconf-query")
+      .args(["-c", "xsettings", "-p", "/Net/ThemeName"])
+      .output()
+    {
+      if output.status.success() {
+        let theme = String::from_utf8_lossy(&output.stdout)
+          .trim()
+          .to_lowercase();
+        if theme.contains("dark") || theme.contains("night") {
+          return Ok("dark".to_string());
+        } else if theme.contains("light") {
+          return Ok("light".to_string());
+        }
+      }
+    }
+
+    // Check XFCE window manager theme as backup
+    if let Ok(output) = Command::new("xfconf-query")
+      .args(["-c", "xfwm4", "-p", "/general/theme"])
+      .output()
+    {
+      if output.status.success() {
+        let theme = String::from_utf8_lossy(&output.stdout)
+          .trim()
+          .to_lowercase();
+        if theme.contains("dark") || theme.contains("night") {
+          return Ok("dark".to_string());
+        } else if theme.contains("light") {
+          return Ok("light".to_string());
+        }
+      }
+    }
+
+    Err("Could not detect XFCE theme".into())
+  }
+
+  fn detect_gtk_theme() -> Result<String, Box<dyn std::error::Error>> {
+    // Try to read GTK3 settings file
+    if let Ok(home) = std::env::var("HOME") {
+      let gtk3_settings = std::path::Path::new(&home).join(".config/gtk-3.0/settings.ini");
+      if gtk3_settings.exists() {
+        if let Ok(content) = std::fs::read_to_string(gtk3_settings) {
+          for line in content.lines() {
+            if line.starts_with("gtk-theme-name=") {
+              let theme_name = line.split('=').nth(1).unwrap_or("").trim().to_lowercase();
+              if theme_name.contains("dark") || theme_name.contains("night") {
+                return Ok("dark".to_string());
+              } else if theme_name.contains("light") || theme_name.contains("adwaita") {
+                return Ok("light".to_string());
+              }
+            }
+          }
+        }
+      }
+
+      // Try GTK4 settings
+      let gtk4_settings = std::path::Path::new(&home).join(".config/gtk-4.0/settings.ini");
+      if gtk4_settings.exists() {
+        if let Ok(content) = std::fs::read_to_string(gtk4_settings) {
+          for line in content.lines() {
+            if line.starts_with("gtk-theme-name=") {
+              let theme_name = line.split('=').nth(1).unwrap_or("").trim().to_lowercase();
+              if theme_name.contains("dark") || theme_name.contains("night") {
+                return Ok("dark".to_string());
+              } else if theme_name.contains("light") || theme_name.contains("adwaita") {
+                return Ok("light".to_string());
+              }
+            }
+          }
+        }
+      }
+    }
+
+    Err("Could not detect GTK theme".into())
+  }
+
+  fn detect_dconf_theme() -> Result<String, Box<dyn std::error::Error>> {
+    if !is_command_available("dconf") {
+      return Err("dconf not available".into());
+    }
+
+    // Try reading color scheme directly from dconf
+    if let Ok(output) = Command::new("dconf")
+      .args(["read", "/org/gnome/desktop/interface/color-scheme"])
+      .output()
+    {
+      if output.status.success() {
+        let scheme = String::from_utf8_lossy(&output.stdout).trim().to_string();
+        match scheme.as_str() {
+          "'prefer-dark'" => return Ok("dark".to_string()),
+          "'prefer-light'" => return Ok("light".to_string()),
+          _ => {}
+        }
+      }
+    }
+
+    // Try reading GTK theme from dconf
+    if let Ok(output) = Command::new("dconf")
+      .args(["read", "/org/gnome/desktop/interface/gtk-theme"])
+      .output()
+    {
+      if output.status.success() {
+        let theme_name = String::from_utf8_lossy(&output.stdout)
+          .trim()
+          .trim_matches('\'')
+          .to_lowercase();
+
+        if theme_name.contains("dark") || theme_name.contains("night") {
+          return Ok("dark".to_string());
+        } else if theme_name.contains("light") || theme_name.contains("adwaita") {
+          return Ok("light".to_string());
+        }
+      }
+    }
+
+    Err("Could not detect dconf theme".into())
+  }
+
+  fn detect_env_theme() -> Result<String, Box<dyn std::error::Error>> {
+    // Check common environment variables
+    if let Ok(theme) = std::env::var("GTK_THEME") {
+      let theme_lower = theme.to_lowercase();
+      if theme_lower.contains("dark") || theme_lower.contains("night") {
+        return Ok("dark".to_string());
+      } else if theme_lower.contains("light") {
+        return Ok("light".to_string());
+      }
+    }
+
+    if let Ok(theme) = std::env::var("QT_STYLE_OVERRIDE") {
+      let theme_lower = theme.to_lowercase();
+      if theme_lower.contains("dark") || theme_lower.contains("night") {
+        return Ok("dark".to_string());
+      } else if theme_lower.contains("light") {
+        return Ok("light".to_string());
+      }
+    }
+
+    Err("Could not detect theme from environment".into())
+  }
+
+  fn detect_portal_theme() -> Result<String, Box<dyn std::error::Error>> {
+    if !is_command_available("busctl") {
+      return Err("busctl not available".into());
+    }
+
+    // Try to query the color scheme via org.freedesktop.portal.Settings
+    if let Ok(output) = Command::new("busctl")
+      .args([
+        "--user",
+        "call",
+        "org.freedesktop.portal.Desktop",
+        "/org/freedesktop/portal/desktop",
+        "org.freedesktop.portal.Settings",
+        "Read",
+        "ss",
+        "org.freedesktop.appearance",
+        "color-scheme",
+      ])
+      .output()
+    {
+      if output.status.success() {
+        let response = String::from_utf8_lossy(&output.stdout);
+        // Parse DBus response - look for preference values
+        if response.contains(" 1 ") {
+          return Ok("dark".to_string());
+        } else if response.contains(" 2 ") {
+          return Ok("light".to_string());
+        }
+      }
+    }
+
+    Err("Could not detect portal theme".into())
+  }
+
+  fn detect_system_files_theme() -> Result<String, Box<dyn std::error::Error>> {
+    // Check if we're in a dark terminal (heuristic)
+    if let Ok(term) = std::env::var("TERM") {
+      let term_lower = term.to_lowercase();
+      if term_lower.contains("dark") || term_lower.contains("night") {
+        return Ok("dark".to_string());
+      }
+    }
+
+    // Check if we can determine from desktop session
+    if let Ok(desktop) = std::env::var("XDG_CURRENT_DESKTOP") {
+      let desktop_lower = desktop.to_lowercase();
+      // Some desktops default to dark
+      if desktop_lower.contains("i3") || desktop_lower.contains("sway") {
+        // Window managers often use dark themes by default
+        return Ok("dark".to_string());
+      }
+    }
+
+    Err("Could not detect theme from system files".into())
+  }
+
+  fn is_command_available(command: &str) -> bool {
+    Command::new("which")
+      .arg(command)
+      .output()
+      .map(|output| output.status.success())
+      .unwrap_or(false)
+  }
+}
+
+#[cfg(target_os = "macos")]
+mod macos {
+  use super::*;
+
+  pub fn detect_system_theme() -> SystemTheme {
+    // macOS theme detection using osascript
+    if let Ok(output) = Command::new("osascript")
+      .args([
+        "-e",
+        "tell application \"System Events\" to tell appearance preferences to get dark mode",
+      ])
+      .output()
+    {
+      if output.status.success() {
+        let result = String::from_utf8_lossy(&output.stdout).to_string();
+        let result = result.trim();
+        match result {
+          "true" => {
+            return SystemTheme {
+              theme: "dark".to_string(),
+            }
+          }
+          "false" => {
+            return SystemTheme {
+              theme: "light".to_string(),
+            }
+          }
+          _ => {}
+        }
+      }
+    }
+
+    // Fallback method using defaults
+    if let Ok(output) = Command::new("defaults")
+      .args(["read", "-g", "AppleInterfaceStyle"])
+      .output()
+    {
+      if output.status.success() {
+        let style = String::from_utf8_lossy(&output.stdout).to_string();
+        let style = style.trim();
+        if style.to_lowercase() == "dark" {
+          return SystemTheme {
+            theme: "dark".to_string(),
+          };
+        }
+      }
+    }
+
+    // Default to light if we can't determine
+    SystemTheme {
+      theme: "light".to_string(),
+    }
+  }
+}
+
+#[cfg(target_os = "windows")]
+mod windows {
+  use super::*;
+
+  pub fn detect_system_theme() -> SystemTheme {
+    // Windows theme detection via registry
+    // This is a simplified implementation - you might want to use winreg crate for better registry access
+    if let Ok(output) = Command::new("reg")
+      .args([
+        "query",
+        "HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize",
+        "/v",
+        "AppsUseLightTheme",
+      ])
+      .output()
+    {
+      if output.status.success() {
+        let result = String::from_utf8_lossy(&output.stdout);
+        if result.contains("0x0") {
+          return SystemTheme {
+            theme: "dark".to_string(),
+          };
+        } else if result.contains("0x1") {
+          return SystemTheme {
+            theme: "light".to_string(),
+          };
+        }
+      }
+    }
+
+    // Default to light if we can't determine
+    SystemTheme {
+      theme: "light".to_string(),
+    }
+  }
+}
+
+// Command to expose this functionality to the frontend
+#[tauri::command]
+pub fn get_system_theme() -> SystemTheme {
+  let detector = ThemeDetector::new();
+  detector.detect_system_theme()
+}
+
+#[cfg(test)]
+mod tests {
+  use super::*;
+
+  #[test]
+  fn test_theme_detector_creation() {
+    let detector = ThemeDetector::new();
+    let theme = detector.detect_system_theme();
+
+    // Should return a valid theme string
+    assert!(matches!(theme.theme.as_str(), "light" | "dark" | "unknown"));
+  }
+
+  #[test]
+  fn test_get_system_theme_command() {
+    let theme = get_system_theme();
+    assert!(matches!(theme.theme.as_str(), "light" | "dark" | "unknown"));
+  }
+}

src-tauri/src/version_updater.rs

@@ -448,22 +448,6 @@ pub async fn get_version_update_status() -> Result<(Option<u64>, u64), String> {
   Ok((last_update, time_until_next))
 }
 
-#[tauri::command]
-pub async fn check_version_update_needed() -> Result<bool, String> {
-  Ok(VersionUpdater::should_run_background_update())
-}
-
-#[tauri::command]
-pub async fn force_version_update_check(_app_handle: tauri::AppHandle) -> Result<bool, String> {
-  let updater = get_version_updater();
-  let updater_guard = updater.lock().await;
-
-  match updater_guard.check_and_run_startup_update().await {
-    Ok(_) => Ok(true),
-    Err(e) => Err(format!("Failed to run version update check: {e}")),
-  }
-}
-
 #[cfg(test)]
 mod tests {
   use super::*;

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "Donut Browser",
-  "version": "0.1.0",
+  "version": "0.3.2",
   "identifier": "com.donutbrowser",
   "build": {
     "beforeDevCommand": "pnpm dev",
@@ -10,15 +10,7 @@
     "frontendDist": "../dist"
   },
   "app": {
-    "windows": [
-      {
-        "title": "Donut Browser",
-        "width": 900,
-        "height": 600,
-        "resizable": false,
-        "fullscreen": false
-      }
-    ],
+    "windows": [],
     "security": {
       "csp": null
     }
@@ -26,6 +18,7 @@
   "bundle": {
     "active": true,
     "targets": "all",
+    "category": "Productivity",
     "externalBin": ["binaries/nodecar"],
     "icon": [
       "icons/32x32.png",
@@ -45,6 +38,25 @@
       "files": {
         "Info.plist": "Info.plist"
       }
+    },
+    "linux": {
+      "deb": {
+        "depends": ["xdg-utils"],
+        "files": {
+          "/usr/share/applications/donutbrowser.desktop": "donutbrowser.desktop"
+        }
+      },
+      "rpm": {
+        "depends": ["xdg-utils"],
+        "files": {
+          "/usr/share/applications/donutbrowser.desktop": "donutbrowser.desktop"
+        }
+      },
+      "appimage": {
+        "files": {
+          "usr/share/applications/donutbrowser.desktop": "donutbrowser.desktop"
+        }
+      }
     }
   },
   "plugins": {

src/app/layout.tsx

@@ -4,6 +4,7 @@ import "@/styles/globals.css";
 import { CustomThemeProvider } from "@/components/theme-provider";
 import { Toaster } from "@/components/ui/sonner";
 import { TooltipProvider } from "@/components/ui/tooltip";
+import { WindowDragArea } from "@/components/window-drag-area";
 
 const geistSans = Geist({
   variable: "--font-geist-sans",
@@ -26,6 +27,7 @@ export default function RootLayout({
         className={`${geistSans.variable} ${geistMono.variable} antialiased`}
       >
         <CustomThemeProvider>
+          <WindowDragArea />
           <TooltipProvider>{children}</TooltipProvider>
           <Toaster />
         </CustomThemeProvider>

src/app/page.tsx

@@ -2,12 +2,19 @@
 
 import { ChangeVersionDialog } from "@/components/change-version-dialog";
 import { CreateProfileDialog } from "@/components/create-profile-dialog";
+import { ImportProfileDialog } from "@/components/import-profile-dialog";
 import { ProfilesDataTable } from "@/components/profile-data-table";
 import { ProfileSelectorDialog } from "@/components/profile-selector-dialog";
 import { ProxySettingsDialog } from "@/components/proxy-settings-dialog";
 import { SettingsDialog } from "@/components/settings-dialog";
 import { Button } from "@/components/ui/button";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuTrigger,
+} from "@/components/ui/dropdown-menu";
 import {
   Tooltip,
   TooltipContent,
@@ -20,7 +27,8 @@ import type { BrowserProfile, ProxySettings } from "@/types";
 import { invoke } from "@tauri-apps/api/core";
 import { listen } from "@tauri-apps/api/event";
 import { useCallback, useEffect, useRef, useState } from "react";
-import { GoGear, GoPlus } from "react-icons/go";
+import { FaDownload } from "react-icons/fa";
+import { GoGear, GoKebabHorizontal, GoPlus } from "react-icons/go";
 
 type BrowserTypeString =
   | "mullvad-browser"
@@ -43,29 +51,33 @@ export default function Home() {
   const [createProfileDialogOpen, setCreateProfileDialogOpen] = useState(false);
   const [changeVersionDialogOpen, setChangeVersionDialogOpen] = useState(false);
   const [settingsDialogOpen, setSettingsDialogOpen] = useState(false);
+  const [importProfileDialogOpen, setImportProfileDialogOpen] = useState(false);
   const [pendingUrls, setPendingUrls] = useState<PendingUrl[]>([]);
   const [currentProfileForProxy, setCurrentProfileForProxy] =
     useState<BrowserProfile | null>(null);
   const [currentProfileForVersionChange, setCurrentProfileForVersionChange] =
     useState<BrowserProfile | null>(null);
-  const [isClient, setIsClient] = useState(false);
+  const [hasCheckedStartupPrompt, setHasCheckedStartupPrompt] = useState(false);
 
-  // Auto-update functionality - only initialize on client
-  const updateNotifications = useUpdateNotifications();
-  const { checkForUpdates, isUpdating } = updateNotifications;
-
-  // App auto-update functionality
-  const appUpdateNotifications = useAppUpdateNotifications();
-  const { checkForAppUpdatesManual } = appUpdateNotifications;
-
-  // Ensure we're on the client side to prevent hydration mismatches
-  useEffect(() => {
-    setIsClient(true);
+  // Simple profiles loader without updates check (for use as callback)
+  const loadProfiles = useCallback(async () => {
+    try {
+      const profileList = await invoke<BrowserProfile[]>(
+        "list_browser_profiles",
+      );
+      setProfiles(profileList);
+    } catch (err: unknown) {
+      console.error("Failed to load profiles:", err);
+      setError(`Failed to load profiles: ${JSON.stringify(err)}`);
+    }
   }, []);
 
-  const loadProfiles = useCallback(async () => {
-    if (!isClient) return; // Only run on client side
+  // Auto-update functionality - pass loadProfiles to refresh profiles after updates
+  const updateNotifications = useUpdateNotifications(loadProfiles);
+  const { checkForUpdates, isUpdating } = updateNotifications;
 
+  // Profiles loader with update check (for initial load and manual refresh)
+  const loadProfilesWithUpdateCheck = useCallback(async () => {
     try {
       const profileList = await invoke<BrowserProfile[]>(
         "list_browser_profiles",
@@ -78,12 +90,12 @@ export default function Home() {
       console.error("Failed to load profiles:", err);
       setError(`Failed to load profiles: ${JSON.stringify(err)}`);
     }
-  }, [checkForUpdates, isClient]);
+  }, [checkForUpdates]);
+
+  useAppUpdateNotifications();
 
   useEffect(() => {
-    if (!isClient) return; // Only run on client side
-
-    void loadProfiles();
+    void loadProfilesWithUpdateCheck();
 
     // Check for startup default browser prompt
     void checkStartupPrompt();
@@ -105,10 +117,11 @@ export default function Home() {
     return () => {
       clearInterval(updateInterval);
     };
-  }, [loadProfiles, checkForUpdates, isClient]);
+  }, [loadProfilesWithUpdateCheck, checkForUpdates]);
 
   const checkStartupPrompt = async () => {
-    if (!isClient) return; // Only run on client side
+    // Only check once during app startup to prevent reopening after dismissing notifications
+    if (hasCheckedStartupPrompt) return;
 
     try {
       const shouldShow = await invoke<boolean>(
@@ -117,14 +130,14 @@ export default function Home() {
       if (shouldShow) {
         setSettingsDialogOpen(true);
       }
+      setHasCheckedStartupPrompt(true);
     } catch (error) {
       console.error("Failed to check startup prompt:", error);
+      setHasCheckedStartupPrompt(true);
     }
   };
 
   const checkStartupUrls = async () => {
-    if (!isClient) return; // Only run on client side
-
     try {
       const hasStartupUrl = await invoke<boolean>(
         "check_and_handle_startup_url",
@@ -138,8 +151,6 @@ export default function Home() {
   };
 
   const listenForUrlEvents = async () => {
-    if (!isClient) return; // Only run on client side
-
     try {
       // Listen for URL open events from the deep link handler (when app is already running)
       await listen<string>("url-open-request", (event) => {
@@ -150,10 +161,7 @@ export default function Home() {
       // Listen for show profile selector events
       await listen<string>("show-profile-selector", (event) => {
         console.log("Received show profile selector request:", event.payload);
-        setPendingUrls((prev) => [
-          ...prev,
-          { id: Date.now().toString(), url: event.payload },
-        ]);
+        setPendingUrls([{ id: Date.now().toString(), url: event.payload }]);
       });
 
       // Listen for show create profile dialog events
@@ -173,15 +181,13 @@ export default function Home() {
   };
 
   const handleUrlOpen = async (url: string) => {
-    if (!isClient) return; // Only run on client side
-
     try {
       // Use smart profile selection
       const result = await invoke<string>("smart_open_url", {
         url,
       });
       console.log("Smart URL opening succeeded:", result);
-      // URL was handled successfully
+      // URL was handled successfully, no need to show selector
     } catch (error: unknown) {
       console.log(
         "Smart URL opening failed or requires profile selection:",
@@ -189,7 +195,8 @@ export default function Home() {
       );
 
       // Show profile selector for manual selection
-      setPendingUrls((prev) => [...prev, { id: Date.now().toString(), url }]);
+      // Replace any existing pending URL with the new one
+      setPendingUrls([{ id: Date.now().toString(), url }]);
     }
   };
 
@@ -270,40 +277,33 @@ export default function Home() {
 
   const runningProfilesRef = useRef<Set<string>>(new Set());
 
-  const checkBrowserStatus = useCallback(
-    async (profile: BrowserProfile) => {
-      if (!isClient) return; // Only run on client side
+  const checkBrowserStatus = useCallback(async (profile: BrowserProfile) => {
+    try {
+      const isRunning = await invoke<boolean>("check_browser_status", {
+        profile,
+      });
 
-      try {
-        const isRunning = await invoke<boolean>("check_browser_status", {
-          profile,
+      const currentRunning = runningProfilesRef.current.has(profile.name);
+
+      if (isRunning !== currentRunning) {
+        setRunningProfiles((prev) => {
+          const next = new Set(prev);
+          if (isRunning) {
+            next.add(profile.name);
+          } else {
+            next.delete(profile.name);
+          }
+          runningProfilesRef.current = next;
+          return next;
         });
-
-        const currentRunning = runningProfilesRef.current.has(profile.name);
-
-        if (isRunning !== currentRunning) {
-          setRunningProfiles((prev) => {
-            const next = new Set(prev);
-            if (isRunning) {
-              next.add(profile.name);
-            } else {
-              next.delete(profile.name);
-            }
-            runningProfilesRef.current = next;
-            return next;
-          });
-        }
-      } catch (err) {
-        console.error("Failed to check browser status:", err);
       }
-    },
-    [isClient],
-  );
+    } catch (err) {
+      console.error("Failed to check browser status:", err);
+    }
+  }, []);
 
   const launchProfile = useCallback(
     async (profile: BrowserProfile) => {
-      if (!isClient) return; // Only run on client side
-
       setError(null);
 
       // Check if browser is disabled due to ongoing update
@@ -337,11 +337,11 @@ export default function Home() {
         setError(`Failed to launch browser: ${JSON.stringify(err)}`);
       }
     },
-    [loadProfiles, checkBrowserStatus, isUpdating, isClient],
+    [loadProfiles, checkBrowserStatus, isUpdating],
   );
 
   useEffect(() => {
-    if (profiles.length === 0 || !isClient) return;
+    if (profiles.length === 0) return;
 
     const interval = setInterval(() => {
       for (const profile of profiles) {
@@ -352,7 +352,7 @@ export default function Home() {
     return () => {
       clearInterval(interval);
     };
-  }, [profiles, checkBrowserStatus, isClient]);
+  }, [profiles, checkBrowserStatus]);
 
   useEffect(() => {
     runningProfilesRef.current = runningProfiles;
@@ -408,76 +408,43 @@ export default function Home() {
     [loadProfiles],
   );
 
-  // Don't render anything until we're on the client side to prevent hydration issues
-  if (!isClient) {
-    return (
-      <div className="grid grid-rows-[20px_1fr_20px] items-center justify-items-center min-h-screen p-8 gap-8 sm:p-12 font-[family-name:var(--font-geist-sans)]">
-        <main className="flex flex-col gap-8 row-start-2 items-center w-full max-w-3xl">
-          <Card className="w-full">
-            <CardHeader>
-              <div className="flex items-center justify-between">
-                <CardTitle>Profiles</CardTitle>
-                <div className="flex items-center gap-2">
-                  <Tooltip>
-                    <TooltipTrigger asChild>
-                      <Button
-                        size="sm"
-                        variant="outline"
-                        disabled
-                        className="flex items-center gap-2"
-                      >
-                        <GoGear className="h-4 w-4" />
-                      </Button>
-                    </TooltipTrigger>
-                    <TooltipContent>Settings</TooltipContent>
-                  </Tooltip>
-                  <Tooltip>
-                    <TooltipTrigger asChild>
-                      <Button
-                        size="sm"
-                        disabled
-                        className="flex items-center gap-2"
-                      >
-                        <GoPlus className="h-4 w-4" />
-                      </Button>
-                    </TooltipTrigger>
-                    <TooltipContent>Create a new profile</TooltipContent>
-                  </Tooltip>
-                </div>
-              </div>
-            </CardHeader>
-            <CardContent className="p-8 text-center">
-              <div className="animate-pulse">Loading...</div>
-            </CardContent>
-          </Card>
-        </main>
-      </div>
-    );
-  }
-
   return (
-    <div className="grid grid-rows-[20px_1fr_20px] items-center justify-items-center min-h-screen p-8 gap-8 sm:p-12 font-[family-name:var(--font-geist-sans)]">
-      <main className="flex flex-col gap-8 row-start-2 items-center w-full max-w-3xl">
+    <div className="grid grid-rows-[20px_1fr_20px] items-center justify-items-center min-h-screen p-8 gap-8 sm:p-12 font-[family-name:var(--font-geist-sans)]  bg-white dark:bg-black">
+      <main className="flex flex-col row-start-2 gap-8 items-center w-full max-w-3xl">
         <Card className="w-full">
           <CardHeader>
-            <div className="flex items-center justify-between">
+            <div className="flex justify-between items-center">
               <CardTitle>Profiles</CardTitle>
-              <div className="flex items-center gap-2">
-                <Tooltip>
-                  <TooltipTrigger asChild>
+              <div className="flex gap-2 items-center">
+                <DropdownMenu>
+                  <DropdownMenuTrigger asChild>
                     <Button
                       size="sm"
                       variant="outline"
+                      className="flex gap-2 items-center"
+                    >
+                      <GoKebabHorizontal className="w-4 h-4" />
+                    </Button>
+                  </DropdownMenuTrigger>
+                  <DropdownMenuContent align="end">
+                    <DropdownMenuItem
                       onClick={() => {
                         setSettingsDialogOpen(true);
                       }}
-                      className="flex items-center gap-2"
                     >
-                      <GoGear className="h-4 w-4" />
-                    </Button>
-                  </TooltipTrigger>
-                  <TooltipContent>Settings</TooltipContent>
-                </Tooltip>
+                      <GoGear className="mr-2 w-4 h-4" />
+                      Settings
+                    </DropdownMenuItem>
+                    <DropdownMenuItem
+                      onClick={() => {
+                        setImportProfileDialogOpen(true);
+                      }}
+                    >
+                      <FaDownload className="mr-2 w-4 h-4" />
+                      Import Profile
+                    </DropdownMenuItem>
+                  </DropdownMenuContent>
+                </DropdownMenu>
                 <Tooltip>
                   <TooltipTrigger asChild>
                     <Button
@@ -485,9 +452,9 @@ export default function Home() {
                       onClick={() => {
                         setCreateProfileDialogOpen(true);
                       }}
-                      className="flex items-center gap-2"
+                      className="flex gap-2 items-center"
                     >
-                      <GoPlus className="h-4 w-4" />
+                      <GoPlus className="w-4 h-4" />
                     </Button>
                   </TooltipTrigger>
                   <TooltipContent>Create a new profile</TooltipContent>
@@ -545,6 +512,14 @@ export default function Home() {
         onVersionChanged={() => void loadProfiles()}
       />
 
+      <ImportProfileDialog
+        isOpen={importProfileDialogOpen}
+        onClose={() => {
+          setImportProfileDialogOpen(false);
+        }}
+        onImportComplete={() => void loadProfiles()}
+      />
+
       {pendingUrls.map((pendingUrl) => (
         <ProfileSelectorDialog
           key={pendingUrl.id}

src/components/create-profile-dialog.tsx

@@ -26,6 +26,8 @@ import {
 } from "@/components/ui/tooltip";
 import { VersionSelector } from "@/components/version-selector";
 import { useBrowserDownload } from "@/hooks/use-browser-download";
+import { useBrowserSupport } from "@/hooks/use-browser-support";
+import { getBrowserDisplayName } from "@/lib/browser-utils";
 import type { BrowserProfile, ProxySettings } from "@/types";
 import { invoke } from "@tauri-apps/api/core";
 import { useEffect, useState } from "react";
@@ -60,9 +62,6 @@ export function CreateProfileDialog({
   const [selectedBrowser, setSelectedBrowser] =
     useState<BrowserTypeString | null>("mullvad-browser");
   const [selectedVersion, setSelectedVersion] = useState<string | null>(null);
-  const [supportedBrowsers, setSupportedBrowsers] = useState<
-    BrowserTypeString[]
-  >([]);
   const [isCreating, setIsCreating] = useState(false);
   const [existingProfiles, setExistingProfiles] = useState<BrowserProfile[]>(
     [],
@@ -84,13 +83,29 @@ export function CreateProfileDialog({
     isVersionDownloaded,
   } = useBrowserDownload();
 
+  const {
+    supportedBrowsers,
+    isLoading: isLoadingSupport,
+    isBrowserSupported,
+  } = useBrowserSupport();
+
   useEffect(() => {
     if (isOpen) {
-      void loadSupportedBrowsers();
       void loadExistingProfiles();
     }
   }, [isOpen]);
 
+  useEffect(() => {
+    if (supportedBrowsers.length > 0) {
+      // Set default browser to first supported browser
+      if (supportedBrowsers.includes("mullvad-browser")) {
+        setSelectedBrowser("mullvad-browser");
+      } else if (supportedBrowsers.length > 0) {
+        setSelectedBrowser(supportedBrowsers[0] as BrowserTypeString);
+      }
+    }
+  }, [supportedBrowsers]);
+
   useEffect(() => {
     if (isOpen && selectedBrowser) {
       // Reset selected version when browser changes
@@ -105,7 +120,7 @@ export function CreateProfileDialog({
     if (availableVersions.length > 0 && selectedBrowser) {
       // Always reset version when browser changes or versions are loaded
       // Find the latest stable version (not alpha/beta)
-      const stableVersions = availableVersions.filter((v) => !v.is_alpha);
+      const stableVersions = availableVersions.filter((v) => !v.is_nightly);
 
       if (stableVersions.length > 0) {
         // Select the first stable version (they're already sorted newest first)
@@ -117,22 +132,6 @@ export function CreateProfileDialog({
     }
   }, [availableVersions, selectedBrowser]);
 
-  const loadSupportedBrowsers = async () => {
-    try {
-      const browsers = await invoke<BrowserTypeString[]>(
-        "get_supported_browsers",
-      );
-      setSupportedBrowsers(browsers);
-      if (browsers.includes("mullvad-browser")) {
-        setSelectedBrowser("mullvad-browser");
-      } else if (browsers.length > 0) {
-        setSelectedBrowser(browsers[0]);
-      }
-    } catch (error) {
-      console.error("Failed to load supported browsers:", error);
-    }
-  };
-
   const loadExistingProfiles = async () => {
     try {
       const profiles = await invoke<BrowserProfile[]>("list_browser_profiles");
@@ -261,21 +260,58 @@ export function CreateProfileDialog({
               onValueChange={(value) => {
                 setSelectedBrowser(value as BrowserTypeString);
               }}
+              disabled={isLoadingSupport}
             >
               <SelectTrigger>
-                <SelectValue placeholder="Select browser" />
+                <SelectValue
+                  placeholder={
+                    isLoadingSupport ? "Loading browsers..." : "Select browser"
+                  }
+                />
               </SelectTrigger>
               <SelectContent>
-                {supportedBrowsers.map((browser) => (
-                  <SelectItem key={browser} value={browser}>
-                    {browser
-                      .split("-")
-                      .map(
-                        (word) => word.charAt(0).toUpperCase() + word.slice(1),
-                      )
-                      .join(" ")}
-                  </SelectItem>
-                ))}
+                {(
+                  [
+                    "mullvad-browser",
+                    "firefox",
+                    "firefox-developer",
+                    "chromium",
+                    "brave",
+                    "zen",
+                    "tor-browser",
+                  ] as BrowserTypeString[]
+                ).map((browser) => {
+                  const isSupported = isBrowserSupported(browser);
+                  const displayName = getBrowserDisplayName(browser);
+
+                  if (!isSupported) {
+                    return (
+                      <Tooltip key={browser}>
+                        <TooltipTrigger asChild>
+                          <SelectItem
+                            value={browser}
+                            disabled={true}
+                            className="opacity-50"
+                          >
+                            {displayName} (Not supported)
+                          </SelectItem>
+                        </TooltipTrigger>
+                        <TooltipContent>
+                          <p>
+                            {displayName} is not supported on your current
+                            platform or architecture.
+                          </p>
+                        </TooltipContent>
+                      </Tooltip>
+                    );
+                  }
+
+                  return (
+                    <SelectItem key={browser} value={browser}>
+                      {displayName}
+                    </SelectItem>
+                  );
+                })}
               </SelectContent>
             </Select>
           </div>

src/components/custom-toast.tsx

@@ -71,7 +71,12 @@ interface ErrorToastProps extends BaseToastProps {
 
 interface DownloadToastProps extends BaseToastProps {
   type: "download";
-  stage?: "downloading" | "extracting" | "verifying" | "completed";
+  stage?:
+    | "downloading"
+    | "extracting"
+    | "verifying"
+    | "completed"
+    | "downloading (twilight rolling release)";
   progress?: {
     percentage: number;
     speed?: string;
@@ -93,38 +98,49 @@ interface FetchingToastProps extends BaseToastProps {
   browserName?: string;
 }
 
+interface TwilightUpdateToastProps extends BaseToastProps {
+  type: "twilight-update";
+  browserName?: string;
+  hasUpdate?: boolean;
+}
+
 type ToastProps =
   | LoadingToastProps
   | SuccessToastProps
   | ErrorToastProps
   | DownloadToastProps
   | VersionUpdateToastProps
-  | FetchingToastProps;
+  | FetchingToastProps
+  | TwilightUpdateToastProps;
 
 function getToastIcon(type: ToastProps["type"], stage?: string) {
   switch (type) {
     case "success":
-      return <LuCheckCheck className="h-4 w-4 text-green-500 flex-shrink-0" />;
+      return <LuCheckCheck className="flex-shrink-0 w-4 h-4 text-green-500" />;
     case "error":
-      return <LuTriangleAlert className="h-4 w-4 text-red-500 flex-shrink-0" />;
+      return <LuTriangleAlert className="flex-shrink-0 w-4 h-4 text-red-500" />;
     case "download":
       if (stage === "completed") {
         return (
-          <LuCheckCheck className="h-4 w-4 text-green-500 flex-shrink-0" />
+          <LuCheckCheck className="flex-shrink-0 w-4 h-4 text-green-500" />
         );
       }
-      return <LuDownload className="h-4 w-4 text-blue-500 flex-shrink-0" />;
+      return <LuDownload className="flex-shrink-0 w-4 h-4 text-blue-500" />;
     case "version-update":
       return (
-        <LuRefreshCw className="h-4 w-4 text-blue-500 animate-spin flex-shrink-0" />
+        <LuRefreshCw className="flex-shrink-0 w-4 h-4 text-blue-500 animate-spin" />
       );
     case "fetching":
       return (
-        <LuRefreshCw className="h-4 w-4 text-blue-500 animate-spin flex-shrink-0" />
+        <LuRefreshCw className="flex-shrink-0 w-4 h-4 text-blue-500 animate-spin" />
+      );
+    case "twilight-update":
+      return (
+        <LuRefreshCw className="flex-shrink-0 w-4 h-4 text-purple-500 animate-spin" />
       );
     default:
       return (
-        <div className="animate-spin rounded-full h-4 w-4 border-2 border-blue-500 border-t-transparent flex-shrink-0" />
+        <div className="flex-shrink-0 w-4 h-4 rounded-full border-2 border-blue-500 animate-spin border-t-transparent" />
       );
   }
 }
@@ -135,10 +151,10 @@ export function UnifiedToast(props: ToastProps) {
   const progress = "progress" in props ? props.progress : undefined;
 
   return (
-    <div className="flex items-start w-full bg-white dark:bg-gray-800 border border-gray-200 dark:border-gray-700 rounded-lg p-3 shadow-lg">
+    <div className="flex items-start p-3 w-full bg-white rounded-lg border border-gray-200 shadow-lg dark:bg-gray-800 dark:border-gray-700">
       <div className="mr-3 mt-0.5">{getToastIcon(type, stage)}</div>
       <div className="flex-1 min-w-0">
-        <p className="text-sm font-medium text-gray-900 dark:text-white leading-tight">
+        <p className="text-sm font-medium leading-tight text-gray-900 dark:text-white">
           {title}
         </p>
 
@@ -149,7 +165,7 @@ export function UnifiedToast(props: ToastProps) {
           stage === "downloading" && (
             <div className="mt-2 space-y-1">
               <div className="flex justify-between items-center">
-                <p className="text-xs text-gray-600 dark:text-gray-300 min-w-0 flex-1">
+                <p className="flex-1 min-w-0 text-xs text-gray-600 dark:text-gray-300">
                   {progress.percentage.toFixed(1)}%
                   {progress.speed && ` • ${progress.speed} MB/s`}
                   {progress.eta && ` • ${progress.eta} remaining`}
@@ -179,16 +195,32 @@ export function UnifiedToast(props: ToastProps) {
                   }}
                 />
               </div>
-              <span className="text-xs text-gray-500 dark:text-gray-400 whitespace-nowrap shrink-0 w-8 text-right">
+              <span className="w-8 text-xs text-right text-gray-500 whitespace-nowrap dark:text-gray-400 shrink-0">
                 {progress.current}/{progress.total}
               </span>
             </div>
           </div>
         )}
 
+        {/* Twilight update progress */}
+        {type === "twilight-update" && (
+          <div className="mt-2">
+            <p className="text-xs text-gray-600 dark:text-gray-300">
+              {"hasUpdate" in props && props.hasUpdate
+                ? "New twilight build available for download"
+                : "Checking for twilight updates..."}
+            </p>
+            {props.browserName && (
+              <p className="mt-1 text-xs text-purple-600 dark:text-purple-400">
+                {props.browserName} • Rolling Release
+              </p>
+            )}
+          </div>
+        )}
+
         {/* Description */}
         {description && (
-          <p className="mt-1 text-xs text-gray-600 dark:text-gray-300 leading-tight">
+          <p className="mt-1 text-xs leading-tight text-gray-600 dark:text-gray-300">
             {description}
           </p>
         )}
@@ -203,7 +235,12 @@ export function UnifiedToast(props: ToastProps) {
             )}
             {stage === "verifying" && (
               <p className="mt-1 text-xs text-gray-600 dark:text-gray-300">
-                Verifying installation...
+                Verifying browser files...
+              </p>
+            )}
+            {stage === "downloading (twilight rolling release)" && (
+              <p className="mt-1 text-xs text-purple-600 dark:text-purple-400">
+                Downloading rolling release build...
               </p>
             )}
           </>

src/components/import-profile-dialog.tsx

@@ -0,0 +1,482 @@
+"use client";
+
+import { LoadingButton } from "@/components/loading-button";
+import { Button } from "@/components/ui/button";
+import {
+  Dialog,
+  DialogContent,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import { useBrowserSupport } from "@/hooks/use-browser-support";
+import { getBrowserDisplayName, getBrowserIcon } from "@/lib/browser-utils";
+import type { DetectedProfile } from "@/types";
+import { invoke } from "@tauri-apps/api/core";
+import { open } from "@tauri-apps/plugin-dialog";
+import { useEffect, useState } from "react";
+import { FaFolder } from "react-icons/fa";
+import { toast } from "sonner";
+
+interface ImportProfileDialogProps {
+  isOpen: boolean;
+  onClose: () => void;
+  onImportComplete?: () => void;
+}
+
+export function ImportProfileDialog({
+  isOpen,
+  onClose,
+  onImportComplete,
+}: ImportProfileDialogProps) {
+  const [detectedProfiles, setDetectedProfiles] = useState<DetectedProfile[]>(
+    [],
+  );
+  const [isLoading, setIsLoading] = useState(false);
+  const [isImporting, setIsImporting] = useState(false);
+  const [importMode, setImportMode] = useState<"auto-detect" | "manual">(
+    "auto-detect",
+  );
+
+  // Auto-detect state
+  const [selectedDetectedProfile, setSelectedDetectedProfile] = useState<
+    string | null
+  >(null);
+  const [autoDetectProfileName, setAutoDetectProfileName] = useState("");
+
+  // Manual import state
+  const [manualBrowserType, setManualBrowserType] = useState<string | null>(
+    null,
+  );
+  const [manualProfilePath, setManualProfilePath] = useState("");
+  const [manualProfileName, setManualProfileName] = useState("");
+
+  const { supportedBrowsers, isLoading: isLoadingSupport } =
+    useBrowserSupport();
+
+  useEffect(() => {
+    if (isOpen) {
+      void loadDetectedProfiles();
+    }
+  }, [isOpen]);
+
+  const loadDetectedProfiles = async () => {
+    setIsLoading(true);
+    try {
+      const profiles = await invoke<DetectedProfile[]>(
+        "detect_existing_profiles",
+      );
+      setDetectedProfiles(profiles);
+
+      // Auto-switch to manual mode if no profiles detected
+      if (profiles.length === 0) {
+        setImportMode("manual");
+      } else {
+        // Auto-select first profile if available
+        setSelectedDetectedProfile(profiles[0].path);
+
+        // Generate default name from the detected profile
+        const profile = profiles[0];
+        const browserName = getBrowserDisplayName(profile.browser);
+        const defaultName = `Imported ${browserName} Profile`;
+        setAutoDetectProfileName(defaultName);
+      }
+    } catch (error) {
+      console.error("Failed to detect existing profiles:", error);
+      toast.error("Failed to detect existing browser profiles");
+    } finally {
+      setIsLoading(false);
+    }
+  };
+
+  const handleBrowseFolder = async () => {
+    try {
+      const selected = await open({
+        directory: true,
+        multiple: false,
+        title: "Select Browser Profile Folder",
+      });
+
+      if (selected && typeof selected === "string") {
+        setManualProfilePath(selected);
+      }
+    } catch (error) {
+      console.error("Failed to open folder dialog:", error);
+      toast.error("Failed to open folder dialog");
+    }
+  };
+
+  const handleAutoDetectImport = async () => {
+    if (!selectedDetectedProfile || !autoDetectProfileName.trim()) {
+      toast.error("Please select a profile and provide a name");
+      return;
+    }
+
+    const profile = detectedProfiles.find(
+      (p) => p.path === selectedDetectedProfile,
+    );
+    if (!profile) {
+      toast.error("Selected profile not found");
+      return;
+    }
+
+    setIsImporting(true);
+    try {
+      await invoke("import_browser_profile", {
+        sourcePath: profile.path,
+        browserType: profile.browser,
+        newProfileName: autoDetectProfileName.trim(),
+      });
+
+      toast.success(
+        `Successfully imported profile "${autoDetectProfileName.trim()}"`,
+      );
+      if (onImportComplete) {
+        onImportComplete();
+      }
+      onClose();
+    } catch (error) {
+      console.error("Failed to import profile:", error);
+      const errorMessage =
+        error instanceof Error ? error.message : String(error);
+      toast.error(`Failed to import profile: ${errorMessage}`);
+    } finally {
+      setIsImporting(false);
+    }
+  };
+
+  const handleManualImport = async () => {
+    if (
+      !manualBrowserType ||
+      !manualProfilePath.trim() ||
+      !manualProfileName.trim()
+    ) {
+      toast.error("Please fill in all fields");
+      return;
+    }
+
+    setIsImporting(true);
+    try {
+      await invoke("import_browser_profile", {
+        sourcePath: manualProfilePath.trim(),
+        browserType: manualBrowserType,
+        newProfileName: manualProfileName.trim(),
+      });
+
+      toast.success(
+        `Successfully imported profile "${manualProfileName.trim()}"`,
+      );
+      if (onImportComplete) {
+        onImportComplete();
+      }
+      onClose();
+    } catch (error) {
+      console.error("Failed to import profile:", error);
+      const errorMessage =
+        error instanceof Error ? error.message : String(error);
+      toast.error(`Failed to import profile: ${errorMessage}`);
+    } finally {
+      setIsImporting(false);
+    }
+  };
+
+  const handleClose = () => {
+    setSelectedDetectedProfile(null);
+    setAutoDetectProfileName("");
+    setManualBrowserType(null);
+    setManualProfilePath("");
+    setManualProfileName("");
+    // Only reset to auto-detect if there are profiles available
+    if (detectedProfiles.length > 0) {
+      setImportMode("auto-detect");
+    } else {
+      setImportMode("manual");
+    }
+    onClose();
+  };
+
+  // Update auto-detect profile name when selection changes
+  useEffect(() => {
+    if (selectedDetectedProfile) {
+      const profile = detectedProfiles.find(
+        (p) => p.path === selectedDetectedProfile,
+      );
+      if (profile) {
+        const browserName = getBrowserDisplayName(profile.browser);
+        const defaultName = `Imported ${browserName} Profile`;
+        setAutoDetectProfileName(defaultName);
+      }
+    }
+  }, [selectedDetectedProfile, detectedProfiles]);
+
+  const selectedProfile = detectedProfiles.find(
+    (p) => p.path === selectedDetectedProfile,
+  );
+
+  return (
+    <Dialog open={isOpen} onOpenChange={onClose}>
+      <DialogContent className="max-w-2xl max-h-[80vh] my-8 flex flex-col">
+        <DialogHeader className="flex-shrink-0">
+          <DialogTitle>Import Browser Profile</DialogTitle>
+        </DialogHeader>
+
+        <div className="overflow-y-auto flex-1 space-y-6 min-h-0">
+          {/* Mode Selection */}
+          <div className="flex gap-2">
+            <Button
+              variant={importMode === "auto-detect" ? "default" : "outline"}
+              onClick={() => {
+                setImportMode("auto-detect");
+              }}
+              className="flex-1"
+              disabled={isLoading}
+            >
+              Auto-Detect
+            </Button>
+            <Button
+              variant={importMode === "manual" ? "default" : "outline"}
+              onClick={() => {
+                setImportMode("manual");
+              }}
+              className="flex-1"
+              disabled={isLoading}
+            >
+              Manual Import
+            </Button>
+          </div>
+
+          {/* Auto-Detect Mode */}
+          {importMode === "auto-detect" && (
+            <div className="space-y-4">
+              <h3 className="text-lg font-medium">Detected Browser Profiles</h3>
+
+              {isLoading ? (
+                <div className="py-8 text-center">
+                  <p className="text-muted-foreground">
+                    Scanning for browser profiles...
+                  </p>
+                </div>
+              ) : detectedProfiles.length === 0 ? (
+                <div className="py-8 text-center">
+                  <p className="text-muted-foreground">
+                    No browser profiles found on your system.
+                  </p>
+                  <p className="mt-2 text-sm text-muted-foreground">
+                    Try the manual import option if you have profiles in custom
+                    locations.
+                  </p>
+                </div>
+              ) : (
+                <div className="space-y-4">
+                  <div>
+                    <Label htmlFor="detected-profile-select" className="mb-2">
+                      Select Profile:
+                    </Label>
+                    <Select
+                      value={selectedDetectedProfile ?? undefined}
+                      onValueChange={(value) => {
+                        setSelectedDetectedProfile(value);
+                      }}
+                    >
+                      <SelectTrigger id="detected-profile-select">
+                        <SelectValue placeholder="Choose a detected profile" />
+                      </SelectTrigger>
+                      <SelectContent>
+                        {detectedProfiles.map((profile) => {
+                          const IconComponent = getBrowserIcon(profile.browser);
+                          return (
+                            <SelectItem key={profile.path} value={profile.path}>
+                              <div className="flex gap-2 items-center">
+                                {IconComponent && (
+                                  <IconComponent className="w-4 h-4" />
+                                )}
+                                <div className="flex flex-col">
+                                  <span className="font-medium">
+                                    {profile.name}
+                                  </span>
+                                  <span className="text-xs text-muted-foreground">
+                                    {profile.description}
+                                  </span>
+                                </div>
+                              </div>
+                            </SelectItem>
+                          );
+                        })}
+                      </SelectContent>
+                    </Select>
+                  </div>
+
+                  {selectedProfile && (
+                    <div className="p-3 rounded-lg bg-muted">
+                      <p className="text-sm">
+                        <span className="font-medium">Path:</span>{" "}
+                        {selectedProfile.path}
+                      </p>
+                      <p className="text-sm">
+                        <span className="font-medium">Browser:</span>{" "}
+                        {getBrowserDisplayName(selectedProfile.browser)}
+                      </p>
+                    </div>
+                  )}
+
+                  <div>
+                    <Label htmlFor="auto-profile-name" className="mb-2">
+                      New Profile Name:
+                    </Label>
+                    <Input
+                      id="auto-profile-name"
+                      value={autoDetectProfileName}
+                      onChange={(e) => {
+                        setAutoDetectProfileName(e.target.value);
+                      }}
+                      placeholder="Enter a name for the imported profile"
+                    />
+                  </div>
+                </div>
+              )}
+            </div>
+          )}
+
+          {/* Manual Import Mode */}
+          {importMode === "manual" && (
+            <div className="space-y-4">
+              <h3 className="text-lg font-medium">Manual Profile Import</h3>
+
+              <div className="space-y-4">
+                <div>
+                  <Label htmlFor="manual-browser-select" className="mb-2">
+                    Browser Type:
+                  </Label>
+                  <Select
+                    value={manualBrowserType ?? undefined}
+                    onValueChange={(value) => {
+                      setManualBrowserType(value);
+                    }}
+                    disabled={isLoadingSupport}
+                  >
+                    <SelectTrigger id="manual-browser-select">
+                      <SelectValue
+                        placeholder={
+                          isLoadingSupport
+                            ? "Loading browsers..."
+                            : "Select browser type"
+                        }
+                      />
+                    </SelectTrigger>
+                    <SelectContent>
+                      {supportedBrowsers.map((browser) => {
+                        const IconComponent = getBrowserIcon(browser);
+                        return (
+                          <SelectItem key={browser} value={browser}>
+                            <div className="flex gap-2 items-center">
+                              {IconComponent && (
+                                <IconComponent className="w-4 h-4" />
+                              )}
+                              <span>{getBrowserDisplayName(browser)}</span>
+                            </div>
+                          </SelectItem>
+                        );
+                      })}
+                    </SelectContent>
+                  </Select>
+                </div>
+
+                <div>
+                  <Label htmlFor="manual-profile-path" className="mb-2">
+                    Profile Folder Path:
+                  </Label>
+                  <div className="flex gap-2">
+                    <Input
+                      id="manual-profile-path"
+                      value={manualProfilePath}
+                      onChange={(e) => {
+                        setManualProfilePath(e.target.value);
+                      }}
+                      placeholder="Enter the full path to the profile folder"
+                    />
+                    <Button
+                      variant="outline"
+                      size="icon"
+                      onClick={() => void handleBrowseFolder()}
+                      title="Browse for folder"
+                    >
+                      <FaFolder className="w-4 h-4" />
+                    </Button>
+                  </div>
+                  <p className="mt-2 text-xs text-muted-foreground">
+                    Example paths:
+                    <br />
+                    macOS: ~/Library/Application
+                    Support/Firefox/Profiles/xxx.default
+                    <br />
+                    Windows: %APPDATA%\Mozilla\Firefox\Profiles\xxx.default
+                    <br />
+                    Linux: ~/.mozilla/firefox/xxx.default
+                  </p>
+                </div>
+
+                <div>
+                  <Label htmlFor="manual-profile-name" className="mb-2">
+                    New Profile Name:
+                  </Label>
+                  <Input
+                    id="manual-profile-name"
+                    value={manualProfileName}
+                    onChange={(e) => {
+                      setManualProfileName(e.target.value);
+                    }}
+                    placeholder="Enter a name for the imported profile"
+                  />
+                </div>
+              </div>
+            </div>
+          )}
+        </div>
+
+        <DialogFooter className="flex-shrink-0">
+          <Button variant="outline" onClick={handleClose}>
+            Cancel
+          </Button>
+          {importMode === "auto-detect" ? (
+            <LoadingButton
+              isLoading={isImporting}
+              onClick={() => {
+                void handleAutoDetectImport();
+              }}
+              disabled={
+                !selectedDetectedProfile ||
+                !autoDetectProfileName.trim() ||
+                isLoading
+              }
+            >
+              Import Profile
+            </LoadingButton>
+          ) : (
+            <LoadingButton
+              isLoading={isImporting}
+              onClick={() => {
+                void handleManualImport();
+              }}
+              disabled={
+                !manualBrowserType ||
+                !manualProfilePath.trim() ||
+                !manualProfileName.trim()
+              }
+            >
+              Import Profile
+            </LoadingButton>
+          )}
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+  );
+}

src/components/profile-data-table.tsx

@@ -401,7 +401,7 @@ export function ProfilesDataTable({
                     }}
                     disabled={!isClient || isRunning || isBrowserUpdating}
                   >
-                    Rename profile
+                    Rename
                   </DropdownMenuItem>
                   <DropdownMenuItem
                     onClick={() => {
@@ -411,7 +411,7 @@ export function ProfilesDataTable({
                     className="text-red-600"
                     disabled={!isClient || isRunning || isBrowserUpdating}
                   >
-                    Delete profile
+                    Delete
                   </DropdownMenuItem>
                 </DropdownMenuContent>
               </DropdownMenu>

src/components/profile-selector-dialog.tsx

@@ -69,16 +69,29 @@ export function ProfileSelectorDialog({
 
       // Auto-select first available profile for link opening
       if (profileList.length > 0) {
-        // Find the first profile that can be used for opening links
-        const availableProfile = profileList.find((profile) => {
-          return canUseProfileForLinks(profile, profileList, runningProfiles);
+        // First, try to find a running profile that can be used for opening links
+        const runningAvailableProfile = profileList.find((profile) => {
+          const isRunning = runningProfiles.has(profile.name);
+          return (
+            isRunning &&
+            canUseProfileForLinks(profile, profileList, runningProfiles)
+          );
         });
 
-        if (availableProfile) {
-          setSelectedProfile(availableProfile.name);
+        if (runningAvailableProfile) {
+          setSelectedProfile(runningAvailableProfile.name);
         } else {
-          // If no suitable profile found, still select the first one to show UI
-          setSelectedProfile(profileList[0].name);
+          // If no running profile is suitable, find the first profile that can be used for opening links
+          const availableProfile = profileList.find((profile) => {
+            return canUseProfileForLinks(profile, profileList, runningProfiles);
+          });
+
+          if (availableProfile) {
+            setSelectedProfile(availableProfile.name);
+          } else {
+            // If no suitable profile found, still select the first one to show UI
+            setSelectedProfile(profileList[0].name);
+          }
         }
       }
     } catch (error) {
@@ -277,7 +290,7 @@ export function ProfileSelectorDialog({
                                   !canUseForLinks ? "opacity-50" : ""
                                 }`}
                               >
-                                <div className="flex items-center gap-3 p-3 rounded-lg hover:bg-accent cursor-pointer">
+                                <div className="flex items-center gap-3 py-1 px-2 rounded-lg hover:bg-accent cursor-pointer">
                                   <div className="flex items-center gap-2">
                                     {(() => {
                                       const IconComponent = getBrowserIcon(

src/components/settings-dialog.tsx

@@ -19,6 +19,7 @@ import {
   SelectTrigger,
   SelectValue,
 } from "@/components/ui/select";
+import { showSuccessToast } from "@/lib/toast-utils";
 import { invoke } from "@tauri-apps/api/core";
 import { useTheme } from "next-themes";
 import { useEffect, useState } from "react";
@@ -28,6 +29,7 @@ interface AppSettings {
   show_settings_on_startup: boolean;
   theme: string;
   auto_updates_enabled: boolean;
+  auto_delete_unused_binaries: boolean;
 }
 
 interface SettingsDialogProps {
@@ -41,17 +43,20 @@ export function SettingsDialog({ isOpen, onClose }: SettingsDialogProps) {
     show_settings_on_startup: true,
     theme: "system",
     auto_updates_enabled: true,
+    auto_delete_unused_binaries: true,
   });
   const [originalSettings, setOriginalSettings] = useState<AppSettings>({
     set_as_default_browser: false,
     show_settings_on_startup: true,
     theme: "system",
     auto_updates_enabled: true,
+    auto_delete_unused_binaries: true,
   });
   const [isDefaultBrowser, setIsDefaultBrowser] = useState(false);
   const [isLoading, setIsLoading] = useState(false);
   const [isSaving, setIsSaving] = useState(false);
   const [isSettingDefault, setIsSettingDefault] = useState(false);
+  const [isClearingCache, setIsClearingCache] = useState(false);
 
   const { setTheme } = useTheme();
 
@@ -106,11 +111,26 @@ export function SettingsDialog({ isOpen, onClose }: SettingsDialogProps) {
     }
   };
 
+  const handleClearCache = async () => {
+    setIsClearingCache(true);
+    try {
+      await invoke("clear_all_version_cache_and_refetch");
+      showSuccessToast("Cache cleared successfully", {
+        description:
+          "All browser version cache has been cleared and browsers are being refreshed",
+        duration: 4000,
+      });
+    } catch (error) {
+      console.error("Failed to clear cache:", error);
+    } finally {
+      setIsClearingCache(false);
+    }
+  };
+
   const handleSave = async () => {
     setIsSaving(true);
     try {
       await invoke("save_app_settings", { settings });
-      // Apply theme change immediately
       setTheme(settings.theme);
       setOriginalSettings(settings);
       onClose();
@@ -130,7 +150,9 @@ export function SettingsDialog({ isOpen, onClose }: SettingsDialogProps) {
     settings.show_settings_on_startup !==
       originalSettings.show_settings_on_startup ||
     settings.theme !== originalSettings.theme ||
-    settings.auto_updates_enabled !== originalSettings.auto_updates_enabled;
+    settings.auto_updates_enabled !== originalSettings.auto_updates_enabled ||
+    settings.auto_delete_unused_binaries !==
+      originalSettings.auto_delete_unused_binaries;
 
   return (
     <Dialog open={isOpen} onOpenChange={onClose}>
@@ -139,7 +161,7 @@ export function SettingsDialog({ isOpen, onClose }: SettingsDialogProps) {
           <DialogTitle>Settings</DialogTitle>
         </DialogHeader>
 
-        <div className="grid gap-6 py-4 overflow-y-auto flex-1 min-h-0">
+        <div className="grid overflow-y-auto flex-1 gap-6 py-4 min-h-0">
           {/* Appearance Section */}
           <div className="space-y-4">
             <Label className="text-base font-medium">Appearance</Label>
@@ -172,7 +194,7 @@ export function SettingsDialog({ isOpen, onClose }: SettingsDialogProps) {
 
           {/* Default Browser Section */}
           <div className="space-y-4">
-            <div className="flex items-center justify-between">
+            <div className="flex justify-between items-center">
               <Label className="text-base font-medium">Default Browser</Label>
               <Badge variant={isDefaultBrowser ? "default" : "secondary"}>
                 {isDefaultBrowser ? "Active" : "Inactive"}
@@ -216,9 +238,26 @@ export function SettingsDialog({ isOpen, onClose }: SettingsDialogProps) {
               </Label>
             </div>
 
+            <div className="flex items-center space-x-2">
+              <Checkbox
+                id="auto-delete-binaries"
+                checked={settings.auto_delete_unused_binaries}
+                onCheckedChange={(checked) => {
+                  updateSetting(
+                    "auto_delete_unused_binaries",
+                    checked as boolean,
+                  );
+                }}
+              />
+              <Label htmlFor="auto-delete-binaries" className="text-sm">
+                Automatically delete unused browser binaries
+              </Label>
+            </div>
+
             <p className="text-xs text-muted-foreground">
               When enabled, Donut Browser will check for browser updates and
-              notify you when updates are available for your profiles.
+              notify you when updates are available for your profiles. Unused
+              binaries will be automatically deleted to save disk space.
             </p>
           </div>
 
@@ -244,6 +283,28 @@ export function SettingsDialog({ isOpen, onClose }: SettingsDialogProps) {
               starts.
             </p>
           </div>
+
+          {/* Advanced Section */}
+          <div className="space-y-4">
+            <Label className="text-base font-medium">Advanced</Label>
+
+            <LoadingButton
+              isLoading={isClearingCache}
+              onClick={() => {
+                void handleClearCache();
+              }}
+              variant="outline"
+              className="w-full"
+            >
+              Clear All Version Cache
+            </LoadingButton>
+
+            <p className="text-xs text-muted-foreground">
+              Clear all cached browser version data and refresh all browser
+              versions from their sources. This will force a fresh download of
+              version information for all browsers.
+            </p>
+          </div>
         </div>
 
         <DialogFooter className="flex-shrink-0">

src/components/theme-provider.tsx

@@ -9,6 +9,10 @@ interface AppSettings {
   theme: string;
 }
 
+interface SystemTheme {
+  theme: string;
+}
+
 interface CustomThemeProviderProps {
   children: React.ReactNode;
 }
@@ -24,9 +28,33 @@ function getSystemTheme(): string {
   return "light";
 }
 
+// Function to get native system theme (fallback to CSS media query)
+async function getNativeSystemTheme(): Promise<string> {
+  try {
+    const systemTheme = await invoke<SystemTheme>("get_system_theme");
+    if (systemTheme.theme === "dark" || systemTheme.theme === "light") {
+      return systemTheme.theme;
+    }
+    // Fallback to CSS media query if native detection returns "unknown"
+    return getSystemTheme();
+  } catch (error) {
+    console.warn(
+      "Failed to get native system theme, falling back to CSS media query:",
+      error,
+    );
+    // Fallback to CSS media query
+    return getSystemTheme();
+  }
+}
+
 export function CustomThemeProvider({ children }: CustomThemeProviderProps) {
   const [isLoading, setIsLoading] = useState(true);
   const [defaultTheme, setDefaultTheme] = useState<string>("system");
+  const [mounted, setMounted] = useState(false);
+
+  useEffect(() => {
+    setMounted(true);
+  }, []);
 
   useEffect(() => {
     const loadTheme = async () => {
@@ -36,7 +64,7 @@ export function CustomThemeProvider({ children }: CustomThemeProviderProps) {
       } catch (error) {
         console.error("Failed to load theme settings:", error);
         // For first-time users, detect system preference and apply it
-        const systemTheme = getSystemTheme();
+        const systemTheme = await getNativeSystemTheme();
         console.log(
           "First-time user detected, applying system theme:",
           systemTheme,
@@ -64,19 +92,71 @@ export function CustomThemeProvider({ children }: CustomThemeProviderProps) {
     void loadTheme();
   }, []);
 
+  // Monitor system theme changes when using "system" theme
+  useEffect(() => {
+    if (!mounted || defaultTheme !== "system") {
+      return;
+    }
+
+    const checkSystemTheme = async () => {
+      try {
+        const currentSystemTheme = await getNativeSystemTheme();
+        // Force re-evaluation by toggling the theme
+        const html = document.documentElement;
+        const currentClass = html.className;
+
+        // Apply the system theme class
+        if (currentSystemTheme === "dark") {
+          if (!html.classList.contains("dark")) {
+            html.classList.add("dark");
+            html.classList.remove("light");
+          }
+        } else {
+          if (
+            !html.classList.contains("light") ||
+            html.classList.contains("dark")
+          ) {
+            html.classList.add("light");
+            html.classList.remove("dark");
+          }
+        }
+      } catch (error) {
+        console.warn("Failed to check system theme:", error);
+      }
+    };
+
+    // Check system theme every 2 seconds when using system theme
+    const intervalId = setInterval(() => void checkSystemTheme(), 2000);
+
+    // Initial check
+    void checkSystemTheme();
+
+    return () => {
+      clearInterval(intervalId);
+    };
+  }, [mounted, defaultTheme]);
+
   if (isLoading) {
-    // Detect system theme to show appropriate loading screen
-    const systemTheme = getSystemTheme();
-    const loadingBgColor = systemTheme === "dark" ? "bg-gray-900" : "bg-white";
-    const spinnerColor =
-      systemTheme === "dark" ? "border-white" : "border-gray-900";
+    // Use a consistent loading screen that doesn't depend on system theme during SSR
+    // This prevents hydration mismatch by ensuring server and client render the same initially
+    let loadingBgColor = "bg-white";
+    let spinnerColor = "border-gray-900";
+
+    // Only apply system theme detection after component is mounted (client-side only)
+    if (mounted) {
+      // Use CSS media query for loading screen since async call would complicate this
+      const systemTheme = getSystemTheme();
+      loadingBgColor = systemTheme === "dark" ? "bg-gray-900" : "bg-white";
+      spinnerColor =
+        systemTheme === "dark" ? "border-white" : "border-gray-900";
+    }
 
     return (
       <div
-        className={`fixed inset-0 ${loadingBgColor} flex items-center justify-center`}
+        className={`flex fixed inset-0 justify-center items-center ${loadingBgColor}`}
       >
         <div
-          className={`animate-spin rounded-full h-8 w-8 border-2 ${spinnerColor} border-t-transparent`}
+          className={`w-8 h-8 rounded-full border-2 animate-spin ${spinnerColor} border-t-transparent`}
         />
       </div>
     );

src/components/ui/sonner.tsx

@@ -15,8 +15,15 @@ const Toaster = ({ ...props }: ToasterProps) => {
           "--normal-bg": "var(--popover)",
           "--normal-text": "var(--popover-foreground)",
           "--normal-border": "var(--border)",
+          zIndex: 99999,
         } as React.CSSProperties
       }
+      toastOptions={{
+        style: {
+          zIndex: 99999,
+          pointerEvents: "auto",
+        },
+      }}
       {...props}
     />
   );

src/components/update-notification.tsx

@@ -47,17 +47,17 @@ export function UpdateNotificationComponent({
   };
 
   return (
-    <div className="flex flex-col gap-3 p-4 max-w-md bg-background border border-border rounded-lg shadow-lg">
-      <div className="flex items-start justify-between gap-2">
+    <div className="flex flex-col gap-3 p-4 max-w-md rounded-lg border shadow-lg bg-background border-border">
+      <div className="flex gap-2 justify-between items-start">
         <div className="flex flex-col gap-1">
-          <div className="flex items-center gap-2">
+          <div className="flex gap-2 items-center">
             <span className="font-semibold text-foreground">
               {browserDisplayName} Update Available
             </span>
             <Badge
               variant={notification.is_stable_update ? "default" : "secondary"}
             >
-              {notification.is_stable_update ? "Stable" : "Beta"}
+              {notification.is_stable_update ? "Stable" : "Nightly"}
             </Badge>
           </div>
           <div className="text-sm text-muted-foreground">
@@ -71,20 +71,20 @@ export function UpdateNotificationComponent({
           onClick={async () => {
             await onDismiss(notification.id);
           }}
-          className="h-6 w-6 p-0 shrink-0"
+          className="p-0 w-6 h-6 shrink-0"
         >
-          <FaTimes className="h-3 w-3" />
+          <FaTimes className="w-3 h-3" />
         </Button>
       </div>
 
-      <div className="flex items-center gap-2">
+      <div className="flex gap-2 items-center">
         <Button
           onClick={handleUpdateClick}
           disabled={isUpdating}
           size="sm"
-          className="flex items-center gap-2"
+          className="flex gap-2 items-center"
         >
-          <FaDownload className="h-3 w-3" />
+          <FaDownload className="w-3 h-3" />
           Update
         </Button>
         <Button

src/components/version-selector.tsx

@@ -30,7 +30,7 @@ interface GithubRelease {
     hash?: string;
   }>;
   published_at: string;
-  is_alpha: boolean;
+  is_nightly: boolean;
 }
 
 interface VersionSelectorProps {
@@ -75,7 +75,7 @@ export function VersionSelector({
             className="justify-between w-full"
           >
             {selectedVersion ?? placeholder}
-            <LuChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" />
+            <LuChevronsUpDown className="ml-2 w-4 h-4 opacity-50 shrink-0" />
           </Button>
         </PopoverTrigger>
         <PopoverContent className="w-[300px] p-0">
@@ -114,11 +114,11 @@ export function VersionSelector({
                               : "opacity-0",
                           )}
                         />
-                        <div className="flex items-center gap-2">
+                        <div className="flex gap-2 items-center">
                           <span>{version.tag_name}</span>
-                          {version.is_alpha && (
+                          {version.is_nightly && (
                             <Badge variant="secondary" className="text-xs">
-                              Alpha
+                              Nightly
                             </Badge>
                           )}
                           {isDownloaded && (
@@ -147,7 +147,7 @@ export function VersionSelector({
           variant="outline"
           className="w-full"
         >
-          <LuDownload className="mr-2 h-4 w-4" />
+          <LuDownload className="mr-2 w-4 h-4" />
           {isDownloading ? "Downloading..." : "Download Browser"}
         </LoadingButton>
       )}

src/components/window-drag-area.tsx

@@ -0,0 +1,60 @@
+"use client";
+
+import { getCurrentWindow } from "@tauri-apps/api/window";
+import { useEffect, useState } from "react";
+
+export function WindowDragArea() {
+  const [isMacOS, setIsMacOS] = useState(false);
+
+  useEffect(() => {
+    // Check if we're on macOS using user agent detection
+    const checkPlatform = () => {
+      const userAgent = navigator.userAgent.toLowerCase();
+      setIsMacOS(userAgent.includes("mac"));
+    };
+
+    checkPlatform();
+  }, []);
+
+  const handleMouseDown = (e: React.MouseEvent) => {
+    // Only handle left mouse button
+    if (e.button !== 0) return;
+
+    // Start dragging asynchronously
+    const startDrag = async () => {
+      try {
+        const window = getCurrentWindow();
+        await window.startDragging();
+      } catch (error) {
+        console.error("Failed to start window dragging:", error);
+      }
+    };
+
+    void startDrag();
+  };
+
+  // Only render on macOS
+  if (!isMacOS) {
+    return null;
+  }
+
+  return (
+    <div
+      className="fixed top-0 right-0 left-0 z-50 h-8 cursor-move"
+      style={{
+        // Ensure it's above all other content
+        zIndex: 9999,
+        // Make it transparent but still capture mouse events
+        backgroundColor: "transparent",
+        // Prevent text selection during drag
+        userSelect: "none",
+        WebkitUserSelect: "none",
+      }}
+      onMouseDown={handleMouseDown}
+      // Prevent context menu
+      onContextMenu={(e) => {
+        e.preventDefault();
+      }}
+    />
+  );
+}

src/hooks/use-app-update-notifications.tsx

@@ -134,7 +134,11 @@ export function useAppUpdateNotifications() {
       {
         id: "app-update",
         duration: Number.POSITIVE_INFINITY, // Persistent until user action
-        position: "top-right",
+        position: "top-left",
+        style: {
+          zIndex: 99999, // Ensure app updates appear above dialogs
+          pointerEvents: "auto", // Ensure app updates remain interactive
+        },
       },
     );
   }, [

src/hooks/use-browser-download.ts

@@ -19,7 +19,7 @@ interface GithubRelease {
     hash?: string;
   }>;
   published_at: string;
-  is_alpha: boolean;
+  is_nightly: boolean;
 }
 
 interface BrowserVersionInfo {
@@ -231,7 +231,7 @@ export function useBrowserDownload() {
           tag_name: versionInfo.version,
           assets: [],
           published_at: versionInfo.date,
-          is_alpha: versionInfo.is_prerelease,
+          is_nightly: versionInfo.is_prerelease,
         }),
       );
 
@@ -272,7 +272,7 @@ export function useBrowserDownload() {
           tag_name: versionInfo.version,
           assets: [],
           published_at: versionInfo.date,
-          is_alpha: versionInfo.is_prerelease,
+          is_nightly: versionInfo.is_prerelease,
         }),
       );
 
@@ -325,6 +325,22 @@ export function useBrowserDownload() {
       setIsDownloading(true);
 
       try {
+        // Check browser compatibility before attempting download
+        const isSupported = await invoke<boolean>(
+          "is_browser_supported_on_platform",
+          { browserStr },
+        );
+        if (!isSupported) {
+          const supportedBrowsers = await invoke<string[]>(
+            "get_supported_browsers",
+          );
+          throw new Error(
+            `${browserName} is not supported on your platform. Supported browsers: ${supportedBrowsers
+              .map(getBrowserDisplayName)
+              .join(", ")}`,
+          );
+        }
+
         await invoke("download_browser", { browserStr, version });
         await loadDownloadedVersions(browserStr);
       } catch (error) {

src/hooks/use-browser-support.ts

@@ -0,0 +1,59 @@
+import { invoke } from "@tauri-apps/api/core";
+import { useEffect, useState } from "react";
+
+export interface BrowserSupportInfo {
+  supportedBrowsers: string[];
+  isLoading: boolean;
+  error: string | null;
+}
+
+export function useBrowserSupport() {
+  const [supportedBrowsers, setSupportedBrowsers] = useState<string[]>([]);
+  const [isLoading, setIsLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+
+  useEffect(() => {
+    const loadSupportedBrowsers = async () => {
+      try {
+        setIsLoading(true);
+        setError(null);
+        const browsers = await invoke<string[]>("get_supported_browsers");
+        setSupportedBrowsers(browsers);
+      } catch (err) {
+        console.error("Failed to load supported browsers:", err);
+        setError(
+          err instanceof Error
+            ? err.message
+            : "Failed to load supported browsers",
+        );
+      } finally {
+        setIsLoading(false);
+      }
+    };
+
+    void loadSupportedBrowsers();
+  }, []);
+
+  const isBrowserSupported = (browser: string): boolean => {
+    return supportedBrowsers.includes(browser);
+  };
+
+  const checkBrowserSupport = async (browser: string): Promise<boolean> => {
+    try {
+      return await invoke<boolean>("is_browser_supported_on_platform", {
+        browserStr: browser,
+      });
+    } catch (err) {
+      console.error(`Failed to check support for browser ${browser}:`, err);
+      return false;
+    }
+  };
+
+  return {
+    supportedBrowsers,
+    isLoading,
+    error,
+    isBrowserSupported,
+    checkBrowserSupport,
+  };
+}

src/hooks/use-update-notifications.tsx

@@ -13,35 +13,66 @@ interface UpdateNotification {
   affected_profiles: string[];
   is_stable_update: boolean;
   timestamp: number;
+  is_rolling_release: boolean;
 }
 
-export function useUpdateNotifications() {
+export function useUpdateNotifications(
+  onProfilesUpdated?: () => Promise<void>,
+) {
   const [notifications, setNotifications] = useState<UpdateNotification[]>([]);
   const [updatingBrowsers, setUpdatingBrowsers] = useState<Set<string>>(
     new Set(),
   );
-  const [isClient, setIsClient] = useState(false);
-
-  // Ensure we're on the client side to prevent hydration mismatches
-  useEffect(() => {
-    setIsClient(true);
-  }, []);
+  const [dismissedNotifications, setDismissedNotifications] = useState<
+    Set<string>
+  >(new Set());
 
   const checkForUpdates = useCallback(async () => {
-    if (!isClient) return; // Only run on client side
-
     try {
       const updates = await invoke<UpdateNotification[]>(
         "check_for_browser_updates",
       );
-      setNotifications(updates);
+
+      // Filter out dismissed notifications unless they're for a newer version
+      const filteredUpdates = updates.filter((notification) => {
+        // Check if this exact notification was dismissed
+        if (dismissedNotifications.has(notification.id)) {
+          return false;
+        }
+
+        // Check if we dismissed an older version for this browser
+        const dismissedForBrowser = Array.from(dismissedNotifications).find(
+          (dismissedId) => {
+            const parts = dismissedId.split("_");
+            if (parts.length >= 2) {
+              const browser = parts[0];
+              return browser === notification.browser;
+            }
+            return false;
+          },
+        );
+
+        if (dismissedForBrowser) {
+          // Extract the dismissed version to compare
+          const dismissedParts = dismissedForBrowser.split("_to_");
+          if (dismissedParts.length === 2) {
+            const dismissedToVersion = dismissedParts[1];
+            // Only show if this is a newer version than what was dismissed
+            return notification.new_version !== dismissedToVersion;
+          }
+        }
+
+        return true;
+      });
+
+      setNotifications(filteredUpdates);
 
       // Show toasts for new notifications - we'll define handleUpdate and handleDismiss separately
       // to avoid circular dependencies
     } catch (error) {
       console.error("Failed to check for updates:", error);
     }
-  }, [isClient]);
+  }, [dismissedNotifications]);
 
   const handleUpdate = useCallback(
     async (browser: string, newVersion: string) => {
@@ -117,6 +148,11 @@ export function useUpdateNotifications() {
               duration: 5000,
             });
           }
+
+          // Trigger profile refresh to update UI with new versions
+          if (onProfilesUpdated) {
+            void onProfilesUpdated();
+          }
         } catch (downloadError) {
           console.error("Failed to download browser:", downloadError);
 
@@ -158,28 +194,28 @@ export function useUpdateNotifications() {
         });
       }
     },
-    [notifications, checkForUpdates],
+    [notifications, checkForUpdates, onProfilesUpdated],
   );
 
   const handleDismiss = useCallback(
     async (notificationId: string) => {
-      if (!isClient) return; // Only run on client side
-
       try {
         toast.dismiss(notificationId);
         await invoke("dismiss_update_notification", { notificationId });
+
+        // Track this notification as dismissed to prevent showing it again
+        setDismissedNotifications((prev) => new Set(prev).add(notificationId));
+
         await checkForUpdates();
       } catch (error) {
         console.error("Failed to dismiss notification:", error);
       }
     },
-    [checkForUpdates, isClient],
+    [checkForUpdates],
   );
 
   // Separate effect to show toasts when notifications change
   useEffect(() => {
-    if (!isClient) return;
-
     for (const notification of notifications) {
       const isUpdating = updatingBrowsers.has(notification.browser);
 
@@ -196,12 +232,14 @@ export function useUpdateNotifications() {
           id: notification.id,
           duration: Number.POSITIVE_INFINITY, // Persistent until user action
           position: "top-right",
-          // Remove transparent styling to fix background issue
-          style: undefined,
+          style: {
+            zIndex: 99999, // Ensure notifications appear above dialogs
+            pointerEvents: "auto", // Ensure notifications remain interactive
+          },
         },
       );
     }
-  }, [notifications, updatingBrowsers, handleUpdate, handleDismiss, isClient]);
+  }, [notifications, updatingBrowsers, handleUpdate, handleDismiss]);
 
   return {
     notifications,

src/lib/toast-utils.ts

@@ -24,7 +24,12 @@ export interface ErrorToastProps extends BaseToastProps {
 
 export interface DownloadToastProps extends BaseToastProps {
   type: "download";
-  stage?: "downloading" | "extracting" | "verifying" | "completed";
+  stage?:
+    | "downloading"
+    | "extracting"
+    | "verifying"
+    | "completed"
+    | "downloading (twilight rolling release)";
   progress?: {
     percentage: number;
     speed?: string;
@@ -46,13 +51,20 @@ export interface FetchingToastProps extends BaseToastProps {
   browserName?: string;
 }
 
+export interface TwilightUpdateToastProps extends BaseToastProps {
+  type: "twilight-update";
+  browserName?: string;
+  hasUpdate?: boolean;
+}
+
 export type ToastProps =
   | LoadingToastProps
   | SuccessToastProps
   | ErrorToastProps
   | DownloadToastProps
   | VersionUpdateToastProps
-  | FetchingToastProps;
+  | FetchingToastProps
+  | TwilightUpdateToastProps;
 
 // Unified toast function
 export function showToast(props: ToastProps & { id?: string }) {
@@ -81,6 +93,9 @@ export function showToast(props: ToastProps & { id?: string }) {
       case "version-update":
         duration = 15000;
         break;
+      case "twilight-update":
+        duration = 10000;
+        break;
       case "success":
         duration = 3000;
         break;
@@ -101,6 +116,8 @@ export function showToast(props: ToastProps & { id?: string }) {
         border: "none",
         boxShadow: "none",
         padding: 0,
+        zIndex: 99999,
+        pointerEvents: "auto",
       },
     });
   } else if (props.type === "error") {
@@ -112,6 +129,8 @@ export function showToast(props: ToastProps & { id?: string }) {
         border: "none",
         boxShadow: "none",
         padding: 0,
+        zIndex: 99999,
+        pointerEvents: "auto",
       },
     });
   } else {
@@ -123,6 +142,8 @@ export function showToast(props: ToastProps & { id?: string }) {
         border: "none",
         boxShadow: "none",
         padding: 0,
+        zIndex: 99999,
+        pointerEvents: "auto",
       },
     });
   }
@@ -149,7 +170,12 @@ export function showLoadingToast(
 export function showDownloadToast(
   browserName: string,
   version: string,
-  stage: "downloading" | "extracting" | "verifying" | "completed",
+  stage:
+    | "downloading"
+    | "extracting"
+    | "verifying"
+    | "completed"
+    | "downloading (twilight rolling release)",
   progress?: { percentage: number; speed?: string; eta?: string },
   options?: { suppressCompletionToast?: boolean },
 ) {
@@ -160,7 +186,9 @@ export function showDownloadToast(
         ? `Downloading ${browserName} ${version}`
         : stage === "extracting"
           ? `Extracting ${browserName} ${version}`
-          : `Verifying ${browserName} ${version}`;
+          : stage === "downloading (twilight rolling release)"
+            ? `Downloading ${browserName} ${version}`
+            : `Verifying ${browserName} ${version}`;
 
   // Don't show completion toast if suppressed (for auto-update scenarios)
   if (stage === "completed" && options?.suppressCompletionToast) {
@@ -245,6 +273,25 @@ export function showErrorToast(
   });
 }
 
+export function showTwilightUpdateToast(
+  browserName: string,
+  options?: {
+    id?: string;
+    description?: string;
+    hasUpdate?: boolean;
+    duration?: number;
+  },
+) {
+  return showToast({
+    type: "twilight-update",
+    title: options?.hasUpdate
+      ? `${browserName} twilight update available`
+      : `Checking for ${browserName} twilight updates...`,
+    browserName,
+    ...options,
+  });
+}
+
 // Generic helper for dismissing toasts
 export function dismissToast(id: string) {
   sonnerToast.dismiss(id);

src/styles/globals.css

@@ -123,3 +123,23 @@
     @apply bg-background text-foreground;
   }
 }
+
+/* Ensure Sonner toasts appear above all dialogs and remain interactive */
+.toaster,
+[data-sonner-toaster] {
+  z-index: 99999 !important;
+  pointer-events: auto !important;
+}
+
+[data-sonner-toast] {
+  z-index: 99999 !important;
+  pointer-events: auto !important;
+}
+
+/* Ensure toast buttons and interactive elements work */
+[data-sonner-toast] button,
+[data-sonner-toast] [role="button"],
+[data-sonner-toast] input,
+[data-sonner-toast] select {
+  pointer-events: auto !important;
+}

src/types.ts

@@ -20,6 +20,13 @@ export interface BrowserProfile {
   last_launch?: number;
 }
 
+export interface DetectedProfile {
+  browser: string;
+  name: string;
+  path: string;
+  description: string;
+}
+
 export interface AppUpdateInfo {
   current_version: string;
   new_version: string;

tailwind.config.js

@@ -0,0 +1,13 @@
+export default {
+  darkMode: "class",
+  theme: {
+    extend: {
+      colors: {
+        black: "#000000",
+      },
+      backgroundColor: {
+        dark: "#000000",
+      },
+    },
+  },
+};