Add-ons, extensions, and themes

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

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Permission request messages for Firefox extensions

Understanding the risks of installing self-hosted extensions

Extensions in Private Browsing

Disable or remove Add-ons

Add-on signing in Firefox

Find and install add-ons to add features to Firefox

Recommended Extensions program

Personalized extension recommendations

Multi-Account Containers

Filelink for Large Attachments

Upgrade your graphics drivers to use hardware acceleration and WebGL

Tips for assessing the safety of an extension

Use Firefox in another language

Manage your extensions using the extensions button in the toolbar

JavaScript settings and preferences for interactive web pages

Manage optional permissions for Firefox extensions

An extension changed my New Tab page or home page

Get started with the Mozilla VPN extension

Permission request messages for Thunderbird extensions

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

Thunderbird add-ons - frequently asked questions

Manage optional permissions for Firefox extensions on Android

Use themes to change the look of Firefox

Facebook Container - Prevent Facebook from tracking you on other websites

Cannot remove an add-on (extension or theme)

How to add devices to your Mozilla VPN subscription

Install themes to change the look of Thunderbird

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

Installing an Add-on in Thunderbird

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

Manage extension shortcuts in Firefox

Install the Pocket extension in your browser

Use the Save to Pocket extension for Google Chrome

Disable VPN protection for a specific website

A program on your computer interferes with the Mozilla VPN extension

Send plugin crash reports to help Mozilla improve Firefox

Access your add-ons with a Mozilla account

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

Built-in themes in Firefox - alternative to complete themes

Firefox Translations Add-on

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

Why is there an OpenH264 plugin in Firefox?

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

Facebook Container isn't working

Recommended Firefox extensions for families and students

Unable to install add-ons (extensions or themes)

Get help with Firefox Developer Edition

Report extensions and themes for abuse

Review installed extensions

Unable to uninstall add-ons (extensions or themes)

Install the Firefox Relay extension on Google Chrome

Site Permission Add-ons

X-Mouse Button Control in Firefox 110

Use the Save to Pocket extension for Safari

Using the Pocket Must Reads extension in Google Chrome

Using the Save to Pocket extension in Microsoft Edge

Integrate Firefox Relay into the Firefox Password Manager

Change your location for a specific website

Orbit Frequently Asked Questions

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?

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

Install system add-ons on Firefox for Enterprise

Block add-ons in Firefox for Enterprise

Lightbeam extension for Firefox is no longer supported

Add-on Badges

Troubleshoot issues related to add-ons

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

Install the Firefox Relay extension in Firefox for Android

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

Troubleshooting Save Button issues with Pocket Chrome extension

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

How will DNS work when using the VPN extension?

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

Manage the VPN extension preferences

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