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
  • 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.

    109,223 users

  • Yomitan

    Yomitan

    Powerful and versatile pop-up dictionary for language learning used by 100,000+ language learners.

    38,635 users

  • Web Archives

    Web Archives

    View archived and cached versions of web pages on various search engines, such as the Wayback Machine and Archive․is.

    67,246 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!

    18,525 users

Explore all Android extensions
  • Utiq Detector

    Utiq Detector

    Detects whether a website uses Utiq, the telco advertising tracker, and warns you.

  • uBlock Lite

    uBlock Lite

    uBlock Lite: A no-nonsense adblock in its light form

  • Claude

    Claude

    Ask Claude AI from your address bar. Summarize pages, answer questions, brainstorm ideas, and more. Claude AI, ChatGPT alternative, AI productivity.

  • Free VPN VNNet

    Free VPN VNNet

    Anonymous, secure, and unlimited VPN access — unblock websites and enjoy unrestricted content for free with VNNet

    1,936 users

  • Ecosia Search

    Ecosia Search

    Adds Ecosia as your default search engine so you can search the web and plant trees at the same time.

  • DeepL

    DeepL

    DeepL's Language AI delivers unmatched translation accuracy and writing assistance. Translate pages, emails and docs seamlessly with top-tier data security.

  • Gemini

    Gemini

    Ask Google Gemini AI directly from the address bar. Ask Gemini to summarize selected text for you.

    1,515 users

  • AI warning for Steam

    AI warning for Steam

    Adds features to increase the visibility of AI Generated Content Disclosures.

    3,133 users