Linux: If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see Install Firefox on Linux.

Mac: Delete Firefox from the Applications folder.

Delete the Firefox installation folder, which is located in one of these locations, by default:.

After the download finishes, close all Firefox windows (or open the Firefox menu and click the close button ).

Download the latest Desktop version of Firefox from (or choose the download for your operating system and language from this page) and save the setup file to your computer.

Note: You might want to print these steps or view them in another browser. This means you remove Firefox program files and then reinstall Firefox.

It will open the Roaming folder find and delete the Mozilla folder.įirefox is now completely removed from your computer, now Download the Latest version of Firefox using another browser and install it, you would be able to open and browse the internet on Firefox without any error.Upgrate to latest version.beta 34.0.5.Ĭertain Firefox problems can be solved by performing a Clean reinstall. Press the Win+R button it will open the Run dialog box, type %appdata% in it, and hit enter. Uninstall FirefoxĪfter Uninstalling Firefox by Iobit Uninstaller, you need to delete one more folder from AppData. So Download and install Iobit Uninstaller and uninstall Firefox using Uninstaller, also perform Powerful Scan which finds all registry entries and leftovers of Firefox, select all leftover items and delete them. If the above method works then great, if not you need to completely uninstall Firefox and re-install to the newest version in order to get this problem fixed.Ĭomplete Uninstall means you need to remove everything related to Firefox from your computer like –Īll above task is going to tedious, especially removing entries from the registry, since I don’t recommend playing with Registry Editor, deleting the wrong registry keys may lead to other errors or complete system failure. Method 1 may not work for everyone because upgrading to the new version may not remove the root cause of this problem. Method 2: Complete Uninstall and Re-install of Firefox

After the complete upgrade, you may be able to run Firefox as usual.

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