refactor: more robust profile import logic

src-tauri/src/profile_importer.rs

@@ -708,7 +708,7 @@ impl ProfileImporter {
     &self,
     browser_type: &str,
   ) -> Result<String, Box<dyn std::error::Error>> {
-    // Try to get a downloaded version first, fallback to a reasonable default
+    // Check if any version of the browser is downloaded
     let registry =
       crate::downloaded_browsers::DownloadedBrowsersRegistry::load().unwrap_or_default();
     let downloaded_versions = registry.get_downloaded_versions(browser_type);
@@ -717,17 +717,12 @@ impl ProfileImporter {
       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()),
-    }
+    // If no downloaded versions found, return an error
+    Err(format!(
+      "No downloaded versions found for browser '{}'. Please download a version of {} first before importing profiles.",
+      browser_type,
+      self.get_browser_display_name(browser_type)
+    ).into())
   }
 
   /// Recursively copy directory contents

src/components/import-profile-dialog.tsx

@@ -142,7 +142,19 @@ export function ImportProfileDialog({
       console.error("Failed to import profile:", error);
       const errorMessage =
         error instanceof Error ? error.message : String(error);
-      toast.error(`Failed to import profile: ${errorMessage}`);
+
+      // Check if error is about browser not being downloaded
+      if (errorMessage.includes("No downloaded versions found")) {
+        const browserDisplayName = getBrowserDisplayName(profile.browser);
+        toast.error(
+          `${browserDisplayName} is not installed. Please download ${browserDisplayName} first from the main window, then try importing again.`,
+          {
+            duration: 8000,
+          },
+        );
+      } else {
+        toast.error(`Failed to import profile: ${errorMessage}`);
+      }
     } finally {
       setIsImporting(false);
     }
@@ -183,7 +195,19 @@ export function ImportProfileDialog({
       console.error("Failed to import profile:", error);
       const errorMessage =
         error instanceof Error ? error.message : String(error);
-      toast.error(`Failed to import profile: ${errorMessage}`);
+
+      // Check if error is about browser not being downloaded
+      if (errorMessage.includes("No downloaded versions found")) {
+        const browserDisplayName = getBrowserDisplayName(manualBrowserType);
+        toast.error(
+          `${browserDisplayName} is not installed. Please download ${browserDisplayName} first from the main window, then try importing again.`,
+          {
+            duration: 8000,
+          },
+        );
+      } else {
+        toast.error(`Failed to import profile: ${errorMessage}`);
+      }
     } finally {
       setIsImporting(false);
     }