Add-ons, extensions, and themes Enhance product functionality with add-ons, extensions, and themes. Le yevugbe me Add-on Badges Permission request messages for Firefox extensions Understanding the risks of installing self-hosted extensions Refresh Firefox - reset add-ons and settings Multi-Account Containers Disable or remove Add-ons Extensions in Private Browsing Personalized extension recommendations Recommended Extensions program Filelink for Large Attachments Find and install add-ons to add features to Firefox Manage your extensions using the extensions button in the toolbar Tips for assessing the safety of an extension An extension changed my New Tab page or home page Permission request messages for Thunderbird extensions Upgrade your graphics drivers to use hardware acceleration and WebGL I found a fake Firefox update Manage optional permissions for Firefox extensions on Android Cannot remove an add-on (extension or theme) Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems Manage optional permissions for Firefox extensions Installing an Add-on in Thunderbird Why do Java, Silverlight, Adobe Acrobat and other plugins no longer work? Install themes to change the look of Thunderbird Use themes to change the look of Firefox Use Firefox in another language Facebook Container - Prevent Facebook from tracking you on other websites Unable to install add-ons (extensions or themes) How to Install and Use another Language in the Dictionary on Thunderbird Add-on signing in Firefox Manage extension shortcuts in Firefox Using the Save to Pocket extension for Safari Re-enable add-ons that were disabled when updating Firefox Remove a toolbar that has taken over your Firefox search or home page Thunderbird add-ons - frequently asked questions Why is there an OpenH264 plugin in Firefox? How to add devices to your Mozilla VPN subscription Installing the Pocket extension in your browser Integrate Firefox Relay into the Firefox Password Manager Open Search How to Customize the New Mail Sound How to Customize Toolbars What is search hijacking? Access your add-ons with a Mozilla account Built-in themes in Firefox - alternative to complete themes Reporting extensions and themes for abuse Install system add-ons on Firefox for Enterprise Troubleshoot issues related to add-ons Firefox Translations Add-on Why aren’t my add-ons working on some websites? Unified Toolbar Troubleshooting Save Button issues with Pocket Chrome extension Using the Save to Pocket extension in Microsoft Edge Flash-based videos and sound do not play correctly Certificates Add-Ons FAQ Add Search Engine to Open Search How can I digitally sign and encrypt emails? Installing and Using another Language in the Dictionary Uninstall Firefox for Android extensions How to update add-ons How to add the translate add-on to Firefox How is Facebook Container different from Multi-account Containers? Unable to install add-ons (extensions or themes) in Thunderbird Block add-ons in Firefox for Enterprise Review installed extensions Lightbeam extension for Firefox is no longer supported Unable to uninstall add-ons (extensions or themes) Recommended Firefox extensions for families and students Site Permission Add-ons userChrome.css and .js and userContent are unsupported Using the Save to Pocket extension for Google Chrome Using the Pocket Must Reads extension in Google Chrome Using the Save to Pocket extension in Brave, Opera and Vivaldi