To use these add-ons, you'll need to download Firefox.

BY FIREFOX

Orbit [Beta]: AI Assistant and Content Summarizer

Easily summarize emails, docs, articles, and video transcripts in English across the web — without sacrificing your privacy.
Get the extension

Extensions are like apps for Firefox.

They add features to Firefox to make browsing faster, safer, or just plain fun.
See all extensions
Anti-tracking extensions
Anti-tracking extensions
See staff picks
Essential add-ons
Essential add-ons
See staff picks
Steam extensions
Steam extensions
See staff picks
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.

    142,896 users

  • Tree Style Tab

    Tree Style Tab

    Show tabs like a tree.

    186,494 users

  • OneTab

    OneTab

    OneTab - Too many tabs? Convert tabs to a list and reduce browser memory

    158,686 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

    76,866 users

Social media extensions
  • Return YouTube Dislike

    Return YouTube Dislike

    Returns ability to see dislike statistics on youtube

    867,810 users

  • BetterTTV

    BetterTTV

    Enhances Twitch and YouTube with new features, emotes, and more.

    472,466 users

  • Facebook Container

    Facebook Container

    Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook.

    942,687 users

  • Augmented Steam

    Augmented Steam

    Augments your Steam Experience

    59,878 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.

    1,191,790 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.

    191,277 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.

    38,347 users

  • Sidebery

    Sidebery

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

    63,490 users

“whatsapp” tagged extensions
  • Global Speed

    Global Speed

    Set a default speed for video and audio.

    56,206 users

  • 划词翻译

    划词翻译

    一站式划词 / 截图 / 网页全文 / 音视频 AI 翻译扩展,支持谷歌、DeepL、ChatGPT、百度等 9 个国内外主流翻译服务,均可用于全文翻译。能在 PDF 里使用。支持辅助键、快捷键、悬浮取词。

    43,220 users

  • Privacy Extension For WhatsApp™ Web

    Privacy Extension For WhatsApp™ Web

    The Privacy Extension For WhatsApp™ Web hides your messages from unwanted glimpses until you hover over them. In the search bar, you can disable the blur effect on all messages manually and specify what elements to blur.

    34,611 users

  • WhatsApp in Sidebar

    WhatsApp in Sidebar

    Displays WhatsApp in the sidebar, provides customizable keyboard shortcut and toggle button.

    7,094 users