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

RECOMMENDED

SingleFile

Save an entire web page—including images and styling—as a single HTML file.
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
Extension starter pack
Extension starter pack
See staff picks
Download Managers
Download Managers
See staff picks
Games & Entertainment extensions
Games & Entertainment extensions
See staff picks
YouTube customization
  • Enhancer for YouTube™

    Enhancer for YouTube™

    Take control of YouTube and boost your user experience!

    740,533 users

  • AdBlocker for YouTube™

    AdBlocker for YouTube™

    Remove all annoying ads from YouTube.

    520,859 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

    286,209 users

  • Youtube Audio

    Youtube Audio

    Stream just the audio from YouTube to save bandwidth and battery life

    50,206 users

Enhanced privacy extensions
  • Privacy Badger

    Privacy Badger

    Automatically learns to block invisible trackers.

    1,141,854 users

  • Ghostery – Privacy Ad Blocker

    Ghostery – Privacy Ad Blocker

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

    1,152,848 users

  • DuckDuckGo Privacy Essentials

    DuckDuckGo Privacy Essentials

    Simple and seamless privacy protection for your browser: tracker blocking, cookie protection, DuckDuckGo private search, email protection, HTTPS upgrading, and much more.

    1,673,996 users

  • NoScript Security Suite

    NoScript Security Suite

    The best security you can get in a web browser! Allow potentially malicious web content to run only from sites you trust. Protect yourself against XSS other web security exploits.

    326,501 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.

    1,058,313 users

  • TWP - Translate Web Pages

    TWP - 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.

    660,957 users

  • Simple Translate

    Simple Translate

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

    237,437 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.

    152,936 users

“antivirus” tagged extensions
  • NoScript Security Suite

    NoScript Security Suite

    The best security you can get in a web browser! Allow potentially malicious web content to run only from sites you trust. Protect yourself against XSS other web security exploits.

    326,501 users

  • Malwarebytes Browser Guard

    Malwarebytes Browser Guard

    The fastest and safest web browsing experience.Secure your privacy by blocking trackers, blocking ads, and blocking malicious content.

    557,112 users

  • Kaspersky Protection 2021

    Kaspersky Protection 2021

    Your protection on the Internet with extension from Kaspersky Lab

    519,409 users

  • Web Threat Shield

    Web Threat Shield

    Keeps you safe when browsing the web by identifying and blocking dangerous websites.

    400,537 users