Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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Add-ons, extensions, and themes

Add-ons, extensions, and themes

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

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About Add-on Badges

Understanding the risks of installing self-hosted extensions

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

On-device AI models in Firefox

JavaScript settings and preferences for interactive web pages

Add-on signing in Firefox

Multi-Account Containers

Get started with the Mozilla VPN extension

Use themes to change the look of Firefox

Extension data collection

Tips for assessing the safety of an extension

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

Upgrade your graphics drivers to use hardware acceleration and WebGL

An extension changed my New Tab page or home page

Cannot remove an add-on (extension or theme)

About permission request messages for Firefox extensions

Manage extension shortcuts in Firefox

Change your location for a specific website

Send plugin crash reports to help Mozilla improve Firefox

How to update add-ons

Facebook Container - Prevent Facebook from tracking you on other websites

Disable Mozilla VPN protection for a specific website

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

Why is there an OpenH264 plugin in Firefox?

Unable to install add-ons (extensions or themes)

Access your add-ons with a Mozilla account

How to add the translate add-on to Firefox

Manage optional permissions for Firefox extensions

Recommended Firefox extensions for families and students

Site Permission Add-ons

Manage your extensions using the extensions button in the toolbar

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

Harmful add-on protection

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

Flash-based videos and sound do not play correctly

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

Use Firefox in another language

Get help with Firefox Developer Edition

What is search hijacking?

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

Built-in themes in Firefox - alternative to complete themes

Facebook Container isn't working

How is Facebook Container different from Multi-account Containers?

Report extensions and themes for abuse

Review installed extensions

Lightbeam extension for Firefox is no longer supported

Troubleshoot issues related to add-ons

Firefox Translations Add-on

X-Mouse Button Control in Firefox 110

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

Integrate Firefox Relay into the Firefox Password Manager

How will DNS work when using the VPN extension?

A program on your computer interferes with the Mozilla VPN extension

Manage the Mozilla VPN extension preferences

Orbit Frequently Asked Questions

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