Add-ons, extensions, and themes

Enhance product functionality with add-ons, extensions, and themes.

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Add-on Badges

Permission request messages for Firefox extensions

Understanding the risks of installing self-hosted extensions

Add-on signing in Firefox

Extensions in Private Browsing

Disable or remove Add-ons

Personalized extension recommendations

Find and install add-ons to add features to Firefox

Recommended Extensions program

Filelink for Large Attachments

Tips for assessing the safety of an extension

Multi-Account Containers

Manage your extensions using the extensions button in the toolbar

JavaScript settings and preferences for interactive web pages

Use Firefox in another language

Upgrade your graphics drivers to use hardware acceleration and WebGL

An extension changed my New Tab page or home page

Permission request messages for Thunderbird extensions

Cannot remove an add-on (extension or theme)

How to update add-ons

Manage optional permissions for Firefox extensions

Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems

Use themes to change the look of Firefox

Why does Mozilla disable some add-ons from running in Firefox?

Installing an Add-on in Thunderbird

Manage extension shortcuts in Firefox

Manage optional permissions for Firefox extensions on Android

Get started with the Mozilla VPN extension

Install the Pocket extension in your browser

Thunderbird add-ons - frequently asked questions

How to add devices to your Mozilla VPN subscription

Why do Java, Silverlight, Adobe Acrobat and other plugins no longer work?

Built-in themes in Firefox - alternative to complete themes

Report extensions and themes for abuse

Install themes to change the look of Thunderbird

Why is there an OpenH264 plugin in Firefox?

Access your add-ons with a Mozilla account

Facebook Container - Prevent Facebook from tracking you on other websites

A program on your computer interferes with the Mozilla VPN extension

Remove a toolbar that has taken over your Firefox search or home page

How to Customize Toolbars

Install the Firefox Relay extension on Google Chrome

Use the Save to Pocket extension for Safari

Integrate Firefox Relay into the Firefox Password Manager

Change your location for a specific website

What to do if another extension interferes with the Mozilla VPN extension

Re-enable add-ons that were disabled when updating Firefox

Facebook Container isn't working

How is Facebook Container different from Multi-account Containers?

Unable to install add-ons (extensions or themes) in Thunderbird

Safari Integration in Firefox iOS

Recommended Firefox extensions for families and students

X-Mouse Button Control in Firefox 110

Why aren’t my add-ons working on some websites?

Using the Save to Pocket extension for Google Chrome

Troubleshooting Save Button issues with Pocket Chrome extension

Disable VPN protection for a specific website

How will DNS work when using the VPN extension?

Manage the VPN extension preferences

Unable to install add-ons (extensions or themes)

Flash-based videos and sound do not play correctly

Certificates

How to Install and Use another Language in the Dictionary on Thunderbird

Add-Ons FAQ

How can I digitally sign and encrypt emails?

Installing and Using another Language in the Dictionary

Get help with Firefox Developer Edition

Uninstall Firefox for Android extensions

What is search hijacking?

How to add the translate add-on to Firefox

Install system add-ons on Firefox for Enterprise

Block add-ons in Firefox for Enterprise

Review installed extensions

Lightbeam extension for Firefox is no longer supported

Troubleshoot issues related to add-ons

Unable to uninstall add-ons (extensions or themes)

Change your theme in Firefox Focus for Android

Change your theme in Firefox Focus for iOS

Install the Firefox Relay extension on Firefox for desktop

Firefox Translations Add-on

Site Permission Add-ons

Install the Firefox Relay extension in Firefox for Android

Using the Pocket Must Reads extension in Google Chrome

Using the Save to Pocket extension in Microsoft Edge

Using the Save to Pocket extension in Brave, Opera and Vivaldi

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