diff --git a/src-tauri/src/browser_runner.rs b/src-tauri/src/browser_runner.rs
index 2fd735c..bcc29b7 100644
--- a/src-tauri/src/browser_runner.rs
+++ b/src-tauri/src/browser_runner.rs
@@ -1306,7 +1306,7 @@ impl BrowserRunner {
       "user_pref(\"browser.shell.checkDefaultBrowser\", false);".to_string(),
       "user_pref(\"app.update.enabled\", false);".to_string(),
       "user_pref(\"app.update.auto\", false);".to_string(),
-      "user_pref(\"app.update.mode\", 0);".to_string(),
+      "user_pref(\"app.update.mode\", 2);".to_string(),
       "user_pref(\"app.update.service.enabled\", false);".to_string(),
       "user_pref(\"app.update.silent\", false);".to_string(),
       "user_pref(\"app.update.checkInstallTime\", false);".to_string(),
@@ -2912,7 +2912,7 @@ mod tests {
 
     // Create profile without proxy
     let profile = runner
-      .create_profile("Test Firefox Prefs", "firefox", "139.0", "stable", None)
+      .create_profile("Test Firefox Preferences", "firefox", "139.0", "stable", None)
       .unwrap();
 
     // Check that user.js file was created with default browser preference
@@ -2939,7 +2939,7 @@ mod tests {
 
     let profile_with_proxy = runner
       .create_profile(
-        "Test Firefox Prefs Proxy",
+        "Test Firefox Preferences Proxy",
         "firefox",
         "139.0",
         "stable",