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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

    160,727 users

  • Tree Style Tab

    Tree Style Tab

    Show tabs like a tree.

    181,542 users

  • Tab Session Manager

    Tab Session Manager

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

    151,273 users

  • Tabliss - New Tab

    Tabliss - New Tab

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

    74,945 users

Gaming & media extensions
  • Enhancer for YouTube™

    Enhancer for YouTube™

    Take control of YouTube and boost your user experience!

    653,764 users

  • 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

    641,163 users

  • Return YouTube Dislike

    Return YouTube Dislike

    Returns ability to see dislike statistics on youtube

    889,050 users

  • BetterTTV

    BetterTTV

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

    494,784 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.

    1,234,826 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.

    195,364 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.

    39,808 users

  • Sidebery

    Sidebery

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

    62,277 users

“image search” tagged extensions
  • DuckDuckGo Search & Tracker Protection

    DuckDuckGo Search & Tracker Protection

    Actively protects your data in your current browser

    1,233,781 users

  • Search by Image

    Search by Image

    A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.

    408,602 users

  • TinEye Reverse Image Search

    TinEye Reverse Image Search

    Click on any image on the web to search for it on TinEye. Recommended by Firefox! Discover where an image came from, see how it is being used, check if modified versions exist or locate high resolution versions. Made with love by the TinEye team.

    45,454 users

  • Image Search Options

    Image Search Options

    A customizable reverse image search tool that conveniently presents a variety of top image search engines.

    39,253 users