Extensions

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

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Recommended extensions
  • Dark Reader

    Dark Reader

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

    247,829 users

  • Search by Image

    Search by Image

    Reverse image search using various search engines, such as Google, Bing, Yandex, Baidu and TinEye.

    83,083 users

  • EPUBReader

    EPUBReader

    With EPUBReader you can read ePub files just in Firefox. No additional software needed!

    159,780 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.

    34,670 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.

    214,349 users

  • Bitwarden - Free Password Manager

    Bitwarden - Free Password Manager

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

    139,830 users

  • LeechBlock NG

    LeechBlock NG

    LeechBlock NG is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.

    30,859 users

  • LASER CAT

    LASER CAT

    This is probably a laser cat add-on so you can shoot laser cat lasers at things.

    3,716 users

Trending extensions
  • User-Agent Switcher and Manager

    User-Agent Switcher and Manager

    Spoofs User-Agent strings of your browser with a new one globally, randomly or per hostname

    363,365 users

  • Dark Reader

    Dark Reader

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

    247,829 users

  • LASER CAT

    LASER CAT

    This is probably a laser cat add-on so you can shoot laser cat lasers at things.

    3,716 users

  • Image Search Options

    Image Search Options

    Image Search Options provides a set of highly customizable reverse image search context menu options.

    59,890 users