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 Permission request messages for Firefox extensions Understanding the risks of installing self-hosted extensions Refresh Firefox - reset add-ons and settings Recommended Extensions program Personalized extension recommendations Extensions in Private Browsing Disable or remove Add-ons Tips for assessing the safety of an extension Find and install add-ons to add features to Firefox Multi-Account Containers Manage your extensions using the extensions button in the toolbar An extension changed my New Tab page or home page Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems Use themes to change the look of Firefox Add-on signing in Firefox Facebook Container - Prevent Facebook from tracking you on other websites Cannot remove an add-on (extension or theme) Manage extension shortcuts in Firefox Unable to install add-ons (extensions or themes) Firefox add-on technology is modernizing Reporting extensions and themes for abuse Recommended Firefox extensions for families and students Access your add-ons with a Mozilla account How to update add-ons Built-in themes in Firefox - alternative to complete themes How is Facebook Container different from Multi-account Containers? Lightbeam extension for Firefox is no longer supported Manage optional permissions for Firefox extensions Re-enable add-ons that were disabled when updating Firefox Frequently asked questions - Firefox add-on technology is modernizing Review installed extensions Troubleshoot issues related to add-ons Site Permission Add-ons