WARNING: Do not use a third party uninstaller as part of this process. More information about reinstalling Firefox can be found here.

Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.

Double-click the downloaded installation file and go through the steps of the installation wizard.

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.

To do a clean reinstall of Firefox, please follow these steps: Note: You might want to print these steps or view them in another browser. This process does not remove your Firefox profile data (such as bookmarks and passwords), since that information is stored in a different location.

This means you remove your Firefox program files and then reinstall Firefox.

Certain Firefox problems can be solved by performing a Clean reinstall.

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