If none of your settings will save, if you get the Firefox Updated tab every time you start Firefox, or if you have tried the steps above with no effect, the file which Firefox uses to save your preferences may be locked or corrupted.įirefox may be unable to save your settings if the prefs.js file (or the prefs.js.moztmp file, if it exists) is write-protected or there are other prefs backup files. Unable to save any preferences or settings (Reinstalling Firefox this way will not remove your user data and settings, since those are saved in a separate location from the program files.) Follow the Reinstall Firefox step in the Troubleshoot and diagnose Firefox problems article to remove the Firefox program from your computer and then reinstall a new copy of Firefox. Your installation of Firefox may have been customized to add a program configuration file that locks certain settings or prevents certain changes from being saved. You should now be able to change your Firefox settings.įirefox program file locks or prevents changes to certain settings Save the file and close the text editor.You can delete all the lines if you want to be able to change everything. Remove the lines for the user preferences you want to be able to change.If there is no user.js file, these steps won't help you.For example, to start the Firefox with the Profile Manager on Mac OS X, you would enter the following: On some Mac versions (needs clarification), this command looks like. Enter the path to the application, then a space, followed by the command-line argument. Open the file user.js with a text editor (like Notepad Gedit, Leafpad, or Kate TextEdit). On Mac OS X go to your Applications/Utilities folder and choose 'Terminal'.Click the Firefox menu at the top of the screen and select Quit Firefox. Click the Firefox menu and select Exit.Note: If you are unable to open or use Firefox, follow the instructions in Finding your profile without opening Firefox. A window will open that contains your profile folder. Under the Application Basics section next to Profile Folder Directory, click Open Folder Show in Finder Open Directory.The Troubleshooting Information tab will open. From the Help menu, select Troubleshooting Information More Troubleshooting Information. Click the menu button, click Help and select Troubleshooting Information More Troubleshooting Information.If you don't have any of the above programs installed, or if If you followed the suggestions and certain settings change back each time you start Firefox, you may have to edit Firefox's configuration files yourself. See Remove a toolbar that has taken over your Firefox search or home page for more information.To reset these, see Change your default search settings in Firefox and How to set the home page. Some third-party toolbars and add-ons change Firefox's home page and search settings. Norton 360 includes a "Firefox Privacy Cleanup" feature that, if enabled, overrides your Firefox Privacy settings and prevents you from keeping your Browsing History, Cookies or other private data between sessions.See Pop-up blocker settings, exceptions and troubleshooting.McAfee Privacy Service turns Firefox's pop-up blocker off.Creative ZenCast changes Firefox's user agent, interfering with Java.Below is a list of programs known to do this and actions you can take to make them stop forcing Firefox settings: User styles ( chrome subfolder containing userChrome and/or userContent CSS files, if previously created.Some programs force Firefox to use certain settings.Security certificate and device settings.These items and settings will be removed: Add-ons stored in other locations are not removed (although any modified preferences are reset). The refresh feature removes add-ons normally stored inside the Firefox profile folder (such as extensions and themes). The refresh feature creates a new profile folder and saves your important data. You can also do a manual refresh by creating a new profile and transferring your important data to the new profile.įirefox stores all your settings and personal information in a profile folder. Note: There's a Refresh Firefox button in the Firefox Troubleshoot Mode window, if you can't start Firefox normally.
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