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Firefox for Android extensions

Personalize Firefox for Android with powerful extensions.

Recommended extensions
  • Privacy Badger

    Privacy Badger

    Automatically learns to block hidden trackers. Made by the leading digital rights nonprofit EFF to stop companies from spying on you.

    EFF Technologists

    1,761,720 users

  • Dark Background and Light Text

    Dark Background and Light Text

    Make every web page (or just the pages you want) display light text on dark backgrounds. All color variations are fully customizable.

    Mikhail Khvoinitsky

    24,076 users

  • 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.

    Stylus Team

    128,320 users

  • Yomitan

    Yomitan

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

    Darius Jahandarie

    39,224 users

Explore all Android extensions
  • Claude in Sidebar

    Claude in Sidebar

    Chat with Claude AI directly in your browser sidebar. Summarize articles, explain code, translate pages, and get instant answers without switching tabs.

    Jadon Mason

    189 users

  • Volume Booster

    Volume Booster

    Boost audio volume on any website beyond normal limits and fix annoying sound problems on YouTube, Steam and more. Volume booster, sound control, audio enhancer, tab volume mixer.

    Volume and Sound Boost

    533 users

  • YT Premium

    YT Premium

    Youtube adblock and Premium features for free

    TromoSM

    454 users

  • YouTube

    YouTube

    Download YouTube video with one click, no hassle. Support Full HD, 1080p, or audio-only.

    Tamasuki

    81 users

  • Website Media Downloader

    Website Media Downloader

    Website Media Downloader automatically detects and downloads videos, audio, images, and live streams from websites. Supports HLS/DASH streams, fast multi-thread downloads, batch downloading, and 100% local processing for maximum privacy.

    anpa26

    233 users

  • AO3 Advanced Marker

    AO3 Advanced Marker

    Tired of losing your place on Archive of Our Own? AO3 Advanced Marker solves the reading chaos by letting you visually track, filter, and sync your progress across all your devices. Turn long lists of works into a clear, organized library!

    leehsuus

    1,081 users

  • YouTube HD

    YouTube HD

    Automatically play YouTube videos in HD quality. YouTube HD player, auto HD, 1080p, 4K, video quality changer, player resize, auto mute, theater mode.

    Turtle

    259 users

  • Youtube Download

    Youtube Download

    Download YouTube videos in full 1080p HD or extract MP3 audio with a single click. Fast, free YouTube video downloader and YouTube to MP3 converter for high-quality downloads.

    Youtube Download

    3,342 users