Add-ons, extensions, and themes

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

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About Add-on Badges

About permission request messages for Firefox extensions

Understanding the risks of installing self-hosted extensions

Extensions in Private Browsing

Disable or remove Add-ons

Find and install add-ons to add features to Firefox

Filelink for Large Attachments

Personalized extension recommendations

Recommended Extensions program

JavaScript settings and preferences for interactive web pages

Add-on signing in Firefox

Manage optional permissions for Firefox extensions on Android

Multi-Account Containers

Upgrade your graphics drivers to use hardware acceleration and WebGL

On-device AI models in Firefox

An extension changed my New Tab page or home page

Manage your extensions using the extensions button in the toolbar

Thunderbird add-ons - frequently asked questions

Permission request messages for Thunderbird extensions

Use Firefox in another language

Tips for assessing the safety of an extension

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

Manage optional permissions for Firefox extensions

Facebook Container - Prevent Facebook from tracking you on other websites

Use themes to change the look of Firefox

Use Firefox VPN in Firefox

Extension data collection

Cannot remove an add-on (extension or theme)

Manage extension shortcuts in Firefox

How to add devices to your Mozilla VPN subscription

Installing an Add-on in Thunderbird

Access your add-ons with a Mozilla account

Send plugin crash reports to help Mozilla improve Firefox

Why is there an OpenH264 plugin in Firefox?

Built-in themes in Firefox - alternative to complete themes

Get started with the Mozilla VPN extension

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

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

Install themes to change the look of Thunderbird

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

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

How to add the translate add-on to Firefox

Firefox Translations Add-on

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

Manage the Mozilla VPN extension preferences

Unable to install add-ons (extensions or themes)

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

Get help with Firefox Developer Edition

How to update add-ons

Report extensions and themes for abuse

Lightbeam extension for Firefox is no longer supported

Site Permission Add-ons

Change your location for a specific website

A program on your computer interferes with the Mozilla VPN extension

Flash-based videos and sound do not play correctly

Certificates

Add-Ons FAQ

How can I digitally sign and encrypt emails?

Installing and Using another Language in the Dictionary

How to Customize Toolbars

Uninstall Firefox for Android extensions

What is search hijacking?

Facebook Container isn't working

How is Facebook Container different from Multi-account Containers?

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

Install system add-ons on Firefox for Enterprise

Block add-ons in Firefox for Enterprise

Review installed extensions

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

Recommended Firefox extensions for families and students

X-Mouse Button Control in Firefox 110

Install the Firefox Relay extension in Firefox for Android

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

Integrate Firefox Relay into the Firefox Password Manager

Disable Mozilla VPN protection for a specific website

How will DNS work when using the VPN extension?

Orbit Frequently Asked Questions

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