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
  • Stylus

    Stylus

    Redesign your favorite websites with Stylus, an actively developed and community driven userstyles manager. Easily install custom themes from popular online repositories, or create, edit, and manage your own personalized CSS stylesheets.

    124,158 users

  • ClearURLs

    ClearURLs

    Removes tracking elements from URLs

    514,616 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!

    18,484 users

  • Yomitan

    Yomitan

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

    38,607 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

    1,701 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.

    1,396 users

  • Claude Meter - Claude Usage Tracker

    Claude Meter - Claude Usage Tracker

    Track your Claude AI usage in real time. See session limits and reset timers at a glance.

    218 users