Download Firefox Systems and Languages What's New Privacy Give Firefox a tune up Refresh Firefox How does it work? Download a fresh copy Install and manage add-ons Add-ons let you customize and add features to Firefox. All All articles and threads In English Add-on Badges Understanding the risks of installing self-hosted extensions Permission request messages for Firefox extensions Extensions in Private Browsing Personalized extension recommendations Disable or remove Add-ons Refresh Firefox - reset add-ons and settings Recommended Extensions program Find and install add-ons to add features to Firefox Tips for assessing the safety of an extension Multi-Account Containers Manage your extensions using the extensions button in the toolbar An extension changed my New Tab page or home page Use themes to change the look of Firefox Add-on signing in Firefox Manage optional permissions for Firefox extensions Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems Manage extension shortcuts in Firefox Facebook Container - Prevent Facebook from tracking you on other websites Cannot remove an add-on (extension or theme) Built-in themes in Firefox - alternative to complete themes Unable to install add-ons (extensions or themes) Recommended Firefox extensions for families and students Access your add-ons with a Mozilla account Re-enable add-ons that were disabled when updating Firefox How to update add-ons Troubleshoot issues related to add-ons Site Permission Add-ons How is Facebook Container different from Multi-account Containers? Reporting extensions and themes for abuse Review installed extensions Lightbeam extension for Firefox is no longer supported