To use Android extensions, you'll need Firefox for Android. To explore Firefox for desktop add-ons, please visit our desktop site.

Firefox for Android extensions

Personalize Firefox for Android with powerful extensions.

Recommended extensions
  • Ghostery – Privacy Ad Blocker

    Ghostery – Privacy Ad Blocker

    The best privacy tool and ad blocker extension for Firefox. Stop trackers, speed up websites and block ads everywhere including YouTube and Facebook.

    1,011,627 users

  • Decentraleyes

    Decentraleyes

    Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.

    249,979 users

  • Sink It for Reddit

    Sink It for Reddit

    Upgrade your Reddit experience with color coded comments, easier nav, sub-reddit blocking, gestures for upvoting, ad+nag blocking, and more. It's like RES, for mobile!

    17,913 users

  • LeechBlock NG

    LeechBlock NG

    LeechBlock NG is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.

    111,438 users

Explore all Android extensions
  • Gemini

    Gemini

    Ask Gemini anything, from the address bar! Type your questions or select any text on a webpage to instantly summarize and explore with AI-powered insights.

  • Google Translate

    Google Translate

    Translate selected text inside a webpage with Google Translate.

  • ChatGPT

    ChatGPT

    Set ChatGPT as your default Firefox search engine; Send address-bar queries directly to ChatGPT.

  • Ecosia

    Ecosia

    Set Ecosia as the default search engine.

  • DuckDuckGo

    DuckDuckGo

    🔍 Set DuckDuckGo as My Default Search Engine

  • YouTube Download

    YouTube Download

    Download YouTube videos with just one click.

    1,111 users

  • Claude in Sidebar

    Claude in Sidebar

    Ask any question about the page you visit with Claude AI in the sidebar.

    1,371 users

  • Gemini AI Search

    Gemini AI Search

    Ask Google Gemini directly from address bar. Select contents on page and ask Google Gemini to summarize.