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Extensions are like apps for Firefox.

They add features to Firefox to make browsing faster, safer, or just plain fun.
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YouTube customization
YouTube customization
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Privacy & Security
Privacy & Security
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Reddit extensions
Reddit extensions
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Tab managers
  • Tab Session Manager

    Tab Session Manager

    Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.

    163,516 users

  • Auto Tab Discard

    Auto Tab Discard

    Increase browser speed and reduce memory load and when you have numerous open tabs.

    95,683 users

  • OneTab

    OneTab

    Save up to 95% memory and reduce tab clutter

    157,703 users

  • Tab Reloader (page auto refresh)

    Tab Reloader (page auto refresh)

    An easy-to-use tab reloader with custom reloading time settings for individual tabs

    77,442 users

Gaming & media extensions
  • Enhancer for YouTube™

    Enhancer for YouTube™

    Take control of YouTube and boost your user experience!

    575,725 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

    794,912 users

  • Return YouTube Dislike

    Return YouTube Dislike

    Returns ability to see dislike statistics on youtube

    898,405 users

  • Read Aloud: A Text to Speech Voice Reader

    Read Aloud: A Text to Speech Voice Reader

    Read out loud the current web-page article with one click. Supports 40+ languages.

    226,292 users

Accessibility extensions
  • Dark Reader

    Dark Reader

    Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.

    1,325,718 users

  • Read Aloud: A Text to Speech Voice Reader

    Read Aloud: A Text to Speech Voice Reader

    Read out loud the current web-page article with one click. Supports 40+ languages.

    226,292 users

  • Dark Mode

    Dark Mode

    Dark theme and night shift mode for every website. Care your eyes, use Dark Mode for night and daily web browsing.

    50,512 users

  • Sidebery

    Sidebery

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

    53,171 users

“translate” tagged extensions
  • To Google Translate

    To Google Translate

    Right-click a section of text and click the Translate icon next to it to text translate or listen to it in your language.

    641,528 users

  • TWP - Translate Web Pages

    TWP - Translate Web Pages

    Translate your page in real time using Google, Bing or Yandex. It is not necessary to open new tabs.

    558,153 users

  • Simple Translate

    Simple Translate

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

    246,686 users

  • DeepL: AI translator and writing assistant

    DeepL: AI translator and writing assistant

    Stay informed, work smarter, and communicate globally without leaving your browser.

    160,111 users