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

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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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Privacy & Security
Privacy & Security
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Essential add-ons
Essential add-ons
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Declutter your desktop
Declutter your desktop
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Tab managers
  • OneTab

    OneTab

    OneTab - Too many tabs? Convert tabs to a list and reduce browser memory

    166,937 users

  • Tree Style Tab

    Tree Style Tab

    Show tabs like a tree.

    180,412 users

  • Tab Session Manager

    Tab Session Manager

    Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.

    150,334 users

  • Tabliss - New Tab

    Tabliss - New Tab

    A beautiful New Tab page with many customisable backgrounds and widgets that does not require any permissions.

    75,376 users

Gaming & media extensions
  • 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: https://sponsor.ajay.app

    649,851 users

  • Return YouTube Dislike

    Return YouTube Dislike

    Returns ability to see dislike statistics on youtube

    895,943 users

  • BetterTTV

    BetterTTV

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

    497,056 users

  • Read Aloud: A Text to Speech Voice Reader

    Read Aloud: A Text to Speech Voice Reader

    Read out loud the current web-page article with one click. Supports 40+ languages.

    197,704 users

Accessibility extensions
  • Dark Reader

    Dark Reader

    Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.

    1,258,504 users

  • Read Aloud: A Text to Speech Voice Reader

    Read Aloud: A Text to Speech Voice Reader

    Read out loud the current web-page article with one click. Supports 40+ languages.

    197,704 users

  • Dark Mode

    Dark Mode

    Dark theme and night shift mode for every website. Care your eyes, use Dark Mode for night and daily web browsing.

    40,143 users

  • Sidebery

    Sidebery

    Vertical tabs tree and bookmarks in sidebar with advanced containers configuration, grouping and many other features.

    62,114 users

“shopping” tagged extensions
  • SteamDB

    SteamDB

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

    78,360 users

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

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

    Youtube Extension. Powerful but lightweight. Enrich your Youtube and content selection. Make YouTube tidy and smart! (Layout, Filters, Shortcuts, Playlist)

    78,107 users

  • Capital One Shopping: Save Now

    Capital One Shopping: Save Now

    Capital One Shopping instantly applies coupon codes to your shopping cart, helps you snag exclusive rewards when you shop at stores you love and compares prices on Amazon to other popular retailers. It's kinda genius.

    547,828 users

  • Rakuten: Get Cashback For Shopping

    Rakuten: Get Cashback For Shopping

    Start shopping smarter with Cashback and coupons. By clicking Add to Firefox you agree to the Rakuten Extension Terms & Conditions

    134,532 users