Extensions

Explore powerful tools and features to customize Firefox and make the browser all your own.

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Recommended extensions
  • YouTube High Definition

    YouTube High Definition

    YouTube High Definition is a powerful tool that will let you automatically play all YouTube videos in HD (High Definition), turn off annotations, change video player size, auto stop videos, auto mute videos, control embedded videos and much more.

    137,619 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

    36,924 users

  • Webmail Ad Blocker

    Webmail Ad Blocker

    Expand your email area by blocking and removing ads on the right hand side of the screen when using Gmail, Hotmail, Outlook.com and Yahoo Mail.

    39,419 users

  • SearchPreview

    SearchPreview

    The main feature of SearchPreview is to enhance your search results pages. It inserts site preview images (thumbnails) and popularity ranks into Google™, DuckDuckGo™, Yahoo™ and Bing™ searches.

    35,303 users

Top rated extensions
  • Decentraleyes

    Decentraleyes

    Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.

    232,837 users

  • SingleFile | Save a page as a single HTML file

    SingleFile | Save a page as a single HTML file

    Save a complete page (with stylesheets, images, etc.) as a single HTML file

    13,262 users

  • Bitwarden - Free Password Manager

    Bitwarden - Free Password Manager

    A secure and free password manager for all of your devices.

    159,149 users

  • Swift Selection Search

    Swift Selection Search

    Swiftly access your search engines in a popup panel when you select text in a webpage. Context menu also included!

    13,763 users

Trending extensions
  • Tabby - Window & Tab Manager

    Tabby - Window & Tab Manager

    Tabby helps you manage a lot of windows and tabs easily; it can help you open, close, move, pin, and do many other things on tabs and windows quickly. With Tabby, you can even save all you windows and tabs for later with just one click!

    2,153 users

  • Weather Extension

    Weather Extension

    The best way to see the weather right in your browser. Easier than looking outside!

    15,066 users

  • ClearURLs

    ClearURLs

    Remove tracking elements from URLs.

    10,430 users

  • ScrollAnywhere

    ScrollAnywhere

    Scroll page without touching scroll-bar! Press Middle (Right / Left) mouse button anywhere on the page to scroll just like with scrollbar. Features also: - "grab and drag" scrolling - customizable scrollbars! - the Momentum auto-scroll

    7,300 users