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
  • FoxClocks

    FoxClocks

    FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to.

    11,044 users

  • Yomitan

    Yomitan

    Powerful and versatile pop-up dictionary for language learning used by 100,000+ language learners.

    29,470 users

  • SingleFile

    SingleFile

    Save an entire web page—including images and styling—as a single HTML file.

    83,385 users

  • automaticDark - Time-Based Theme Changer

    automaticDark - Time-Based Theme Changer

    Automatically change Firefox's theme based on the time.

    13,425 users

Top rated extensions
  • Time Tracker - Web Habit Builder

    Time Tracker - Web Habit Builder

    Track time, analyze your habits and block addictive sites

    10,352 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.

    113,784 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

    720,919 users

  • SteamDB

    SteamDB

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

    93,045 users

Trending extensions
  • Notefox: websites notes

    Notefox: websites notes

    Take notes on every website in a smart and simple way!

    3,315 users

  • Image Max URL

    Image Max URL

    Finds larger/original versions of images (supporting 10,000+ websites), including a powerful media popup feature

    6,741 users

  • Sink It for Reddit

    Sink It for Reddit

    Upgrade your Reddit experience with color coded comments, easier nav, sub-reddit blocking, gestures for upvoting, ad+nag blocking, and more. It's like RES, for mobile!

    5,032 users

  • Show Video Controls for Firefox

    Show Video Controls for Firefox

    Automatically enables video controls when playing html webm videos.

    3,096 users