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.

Explore all categories
Recommended extensions
  • Simple Translate

    Simple Translate

    Quickly translate selected or typed text on web pages. Supports Google Translate and DeepL API.

    278,647 users

  • Checker Plus for Gmail™

    Checker Plus for Gmail™

    Get desktop notifications, read, listen or delete emails without opening Gmail or Inbox by Gmail & easily manage multiple accounts.

    23,616 users

  • Tab Stash

    Tab Stash

    Easily save and organize batches of tabs as bookmarks. Clear your tabs, clear your mind. Only for Firefox.

    37,546 users

  • Undo Close Tab

    Undo Close Tab

    Allows you to restore the tab you just closed with a single click—plus it can offer a list of recently closed tabs within a convenient context menu.

    43,691 users

Top rated extensions
  • SteamDB

    SteamDB

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

    85,468 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.

    110,978 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

    684,826 users

  • Yomitan

    Yomitan

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

    26,590 users

Trending extensions
  • Time Tracker - Web Habit Builder

    Time Tracker - Web Habit Builder

    Track time, analyze your habits and block addictive sites

    630 users

  • PhotoShow

    PhotoShow

    Hover to zoom and view high-definition images. Instantly enlarge visuals, crafted for all your favorite websites—and for you.

    8,839 users

  • Chrome Mask

    Chrome Mask

    Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.

    35,135 users

  • YouTube Search Fixer

    YouTube Search Fixer

    Remove ALL distracting search results, redirect shorts back to legacy page and try little visual changes suited for low resolution screens.

    26,424 users