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
  • Dictionary Anywhere

    Dictionary Anywhere

    View definitions easily as you browse the web. Double-click any word to view its definition in a small pop-up bubble. It also supports Spanish, German, French language alongside English. Enjoy Reading Uninterrupted!!!.

    27,364 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.

    35,447 users

  • CanvasBlocker

    CanvasBlocker

    Alters some JS APIs to prevent fingerprinting.

    37,074 users

  • Sidebery

    Sidebery

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

    51,702 users

Top rated extensions
  • Time Tracker - Web Habit Builder

    Time Tracker - Web Habit Builder

    Track time, analyze your habits and block addictive sites

    18,151 users

  • SteamDB

    SteamDB

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

    111,009 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.

    106,577 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

    747,031 users

Trending extensions
  • Clear Browsing Data

    Clear Browsing Data

    Delete browsing data directly from the browser toolbar. Clear cookies, history and cache with a single click.

    39,077 users

  • Stylebot

    Stylebot

    Change the appearance of the web instantly

    12,654 users

  • automaticDark - Time-Based Theme Changer

    automaticDark - Time-Based Theme Changer

    Automatically change Firefox's theme based on the time.

    22,498 users

  • Enhancer for YouTube™

    Enhancer for YouTube™

    Take control of YouTube and boost your user experience!

    529,643 users