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
  • Custom Scrollbars

    Custom Scrollbars

    Give Firefox a personal touch with customized scrollbars!

    17,385 users

  • User-Agent Switcher and Manager

    User-Agent Switcher and Manager

    Spoof websites trying to gather information about your web navigation—like your browser type and operating system—to deliver distinct content you may not want.

    86,233 users

  • Gesturefy

    Gesturefy

    Navigate, operate, and browse faster with mouse gestures! A customizable mouse gesture add-on with a variety of different commands.

    82,848 users

  • Measure-it

    Measure-it

    Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

    21,883 users

Top rated extensions
  • SteamDB

    SteamDB

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

    104,818 users

  • Time Tracker - Web Habit Builder

    Time Tracker - Web Habit Builder

    Track time, analyze your habits and block addictive sites

    19,046 users

  • 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.

    111,877 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

    742,461 users

Trending extensions
  • Immersive Translate - Translate Website & PDF

    Immersive Translate - Translate Website & PDF

    Free Translate Website, Translate PDF & Epub eBook, Translate Video Subtitles in Bilingual

    111,433 users

  • Turn Off the Lights for Firefox

    Turn Off the Lights for Firefox

    The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube and Beyond. Dark mode for all websites. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, etc.

    60,462 users

  • Checker Plus for Gmail™

    Checker Plus for Gmail™

    Get notifications, read, listen to or delete emails without opening Gmail and easily manage multiple accounts.

    35,591 users

  • Gesturefy

    Gesturefy

    Navigate, operate, and browse faster with mouse gestures! A customizable mouse gesture add-on with a variety of different commands.

    82,848 users