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

Extensions

Explore powerful tools and features to customize Firefox and make the browser all your own.

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Recommended extensions
  • Block Site

    Block Site

    A customizable, password-protected website blocker and redirector.

    71,007 users

  • Foxy Gestures

    Foxy Gestures

    Mouse gestures for Firefox. A web extension alternative to FireGestures created by a long time FireGestures user.

    22,057 users

  • Augmented Steam

    Augmented Steam

    Augments your Steam Experience

    54,113 users

  • Download Manager (S3)

    Download Manager (S3)

    View and manage downloads from a tidy status bar.

    60,854 users

Top rated extensions
  • LeechBlock NG

    LeechBlock NG

    LeechBlock NG is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.

    68,902 users

  • Privacy Badger

    Privacy Badger

    Automatically learns to block invisible trackers.

    1,238,423 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

    457,441 users

  • Decentraleyes

    Decentraleyes

    Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.

    262,728 users

Trending extensions
  • automaticDark - Time-Based Theme Changer

    automaticDark - Time-Based Theme Changer

    Automatically change Firefox's theme based on the time.

    20,219 users

  • SoundFixer

    SoundFixer

    Helps you fix annoying sound problems on sites like YouTube: audio in one channel only, too quiet or too loud. (Unfortunately, this extension does not work on all websites because of cross-domain issues — but it does work on YouTube!)

    54,095 users

  • Simple Tab Groups

    Simple Tab Groups

    Create, modify, and quickly change tab groups

    95,450 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.

    355,521 users