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 Personalized extension recommendations Extensions in Private Browsing Refresh Firefox - reset add-ons and settings Disable or remove Add-ons 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 Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems Add-on signing in Firefox Facebook Container - Prevent Facebook from tracking you on other websites Use themes to change the look of Firefox Manage extension shortcuts in Firefox Cannot remove an add-on (extension or theme) Permission request messages for Firefox extensions Site Permission Add-ons Built-in themes in Firefox - alternative to complete themes How to update add-ons How is Facebook Container different from Multi-account Containers? Reporting extensions and themes for abuse Review installed extensions Troubleshoot issues related to add-ons Manage optional permissions for Firefox extensions Recommended Firefox extensions for families and students Unable to install add-ons (extensions or themes) Re-enable add-ons that were disabled when updating Firefox Access your add-ons with a Mozilla account Lightbeam extension for Firefox is no longer supported