To use these add-ons, you'll need to download Firefox.


Firefox Relay

Mask your email to protect your identity & prevent junk mail. New updates make Firefox Relay even easier to use.
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Extensions are like apps for Firefox.

They add features to Firefox to make browsing faster, safer, or just plain fun.
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YouTube Search Fixer (Developer Spotlight)
YouTube Search Fixer (Developer Spotlight)
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Privacy & Security extensions
Privacy & Security extensions
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Writing tools
Writing tools
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YouTube customization
  • AdBlocker for YouTube™

    AdBlocker for YouTube™

    Remove all annoying ads from YouTube.

    460 732 brukarar

  • SponsorBlock - Skip Sponsorships on YouTube

    SponsorBlock - Skip Sponsorships on YouTube

    Easily skip YouTube video sponsors. When you visit a YouTube video, the extension will check the database for reported sponsors and automatically skip known sponsors. You can also report sponsors in videos. Other browsers:

    425 858 brukarar

  • YouTube NonStop

    YouTube NonStop

    Tired of getting that "Video paused. Continue watching?" confirmation dialog? This extension autoclicks it, so you can listen to your favorite music uninterrupted. Working on YouTube and YouTube Music!

    131 074 brukarar

  • YouTube High Definition

    YouTube High Definition

    YouTube High Definition is a powerful tool that automatically plays all YouTube videos in HD, changes video player size, offers auto-stop and mute, and much more.

    163 440 brukarar

Steam enhancers
  • SteamDB


    Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.

    46 889 brukarar

  • Augmented Steam

    Augmented Steam

    Augments your Steam Experience

    52 530 brukarar

  • Steam URL Opener

    Steam URL Opener

    Allows you to open URLs inside Steam Client to save the hassle of logging in normal browser (with a single click on a button).

    4 096 brukarar

  • ProtonDB for Steam

    ProtonDB for Steam

    Shows ratings from on Steam

    2 847 brukarar

Social media extensions
  • Return YouTube Dislike

    Return YouTube Dislike

    Returns ability to see dislike statistics on youtube

    623 557 brukarar

  • Facebook Container

    Facebook Container

    Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook.

    1 038 164 brukarar

  • BetterTTV


    Enhances Twitch and YouTube with new features, emotes, and more.

    453 686 brukarar

  • Augmented Steam

    Augmented Steam

    Augments your Steam Experience

    52 530 brukarar

“user scripts” tagged extensions
  • 'Improve YouTube!'  🎧 (For YouTube & Video)

    'Improve YouTube!' 🎧 (For YouTube & Video)

    Youtube Extension. Powerful but lightweight. Enrich your Youtube & content selection. Make YouTube tidy&smart! Layout Filters Shortcuts Adblocker Playlist

    31 265 brukarar

  • PopUpOFF


    Removes and prevents popups, overlays and cookie notifications, other tools do not. Enjoy the original look of the internet.

    23 680 brukarar

  • Immersive Translate - 沉浸式翻译 - 双语对照网页翻译

    Immersive Translate - 沉浸式翻译 - 双语对照网页翻译

    Web bilingual translation, completely free to use, supports Deepl/Google/Bing/Tencent/Youdao, etc. it also works on iOS Safari.

    34 740 brukarar

  • Auto Refresh Page - Oppdater siden automatisk

    Auto Refresh Page - Oppdater siden automatisk

    Oppdater nettsider automatisk. Automatisk oppdatering og sidemonitor med spesifiserte tidsintervaller.

    27 281 brukarar