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RECOMMENDED

Popup Blocker (strict)

Block all pop-ups by default, then decide which ones you'd like to open.
Get the extension

Extensions are like apps for Firefox.

They add features to Firefox to make browsing faster, safer, or just plain fun.
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Tab organizers and tools
Tab organizers and tools
Explore extensions
Privacy beyond browser extensions
Privacy beyond browser extensions
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Media enhancers for Firefox
Media enhancers for Firefox
Explore extensions
Enhanced privacy extensions
  • Ghostery – Privacy Ad Blocker

    Ghostery – Privacy Ad Blocker

    Ghostery is a powerful privacy extension. Block ads, stop trackers and speed up websites.

    1,160,960 users

  • Privacy Badger

    Privacy Badger

    Automatically learns to block invisible trackers.

    964,492 users

  • HTTPS Everywhere

    HTTPS Everywhere

    Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.

    727,149 users

  • DuckDuckGo Privacy Essentials

    DuckDuckGo Privacy Essentials

    Privacy, simplified. Our add-on provides the privacy essentials you need to seamlessly take control of your personal information, no matter where the internet takes you: tracker blocking, smarter encryption, DuckDuckGo private search, and more.

    1,474,299 users

Tab managers
  • Tree Style Tab

    Tree Style Tab

    Show tabs like a tree.

    140,857 users

  • OneTab

    OneTab

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

    117,373 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

    70,098 users

  • New Tab Override

    New Tab Override

    New Tab Override allows you to set the page that shows whenever you open a new tab.

    70,562 users

Translation tools
  • 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.

    783,113 users

  • Translate Web Pages

    Translate Web Pages

    Translate your page in real time using Google or Yandex. It is not necessary to open new tabs. Now works with the NoScript Extension.

    340,034 users

  • Simple Translate

    Simple Translate

    Quickly translate selected text on web page. In toolbar popup, you can translate input text.

    103,743 users

  • ImTranslator: Translator, Dictionary, TTS

    ImTranslator: Translator, Dictionary, TTS

    COMPLETELY REDESIGNED TRANSLATOR FOR FIREFOX ImTranslator translates text, words, webpages between more than 100 languages. NEW: Inline Translator, Dictionary, access to Google Translate, Microsoft Translator. Unique on the fly localization.

    161,531 users

“container” tagged extensions
  • 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.

    1,586,667 users

  • Firefox Multi-Account Containers

    Firefox Multi-Account Containers

    Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs that preserve your privacy. Cookies are separated by container, allowing you to use the web with multiple identities or accounts simultaneously.

    286,504 users

  • Google Container

    Google Container

    THIS IS NOT AN OFFICIAL ADDON FROM MOZILLA! It is a fork of the Facebook Container addon. Prevent Google from tracking you around the web. The Google Container extension helps you take control and isolate your web activity from Google.

    15,751 users

  • Temporary Containers

    Temporary Containers

    Open tabs, websites, and links in automatically managed disposable containers which isolate the data websites store (cookies, storage, and more) from each other, enhancing your privacy and security while you browse.

    15,515 users