Extensions

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

Explore all categories
Recommended extensions
  • Smart HTTPS

    Smart HTTPS

    Automatically changes HTTP addresses to the secure HTTPS, and if loading encounters error, reverts it back to HTTP.

    19,897 users

  • Impulse Blocker

    Impulse Blocker

    Block distracting websites when you are browsing the web. You can list websites that you don't want to visit in the settings. You can pause or turn off the blocker quickly. Completely open source.

    7,087 users

  • Myki Password Manager & Authenticator

    Myki Password Manager & Authenticator

    Offline P2P encrypted password manager & authenticator. Auto-fill Two-Factor Authentication (2FA) tokens.

    2,596 users

  • Stylus

    Stylus

    Redesign your favourite websites with Stylus, an actively developed and community driven user-style manager. Easily install custom themes from popular online repositories, or create, edit, and manage your own personalised CSS stylesheets.

    76,345 users

Top rated extensions
  • Decentraleyes

    Decentraleyes

    Protects you against tracking through "free", centralised, 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.

    207,687 users

  • Bitwarden - Free Password Manager

    Bitwarden - Free Password Manager

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

    133,587 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.

    30,163 users

  • Enhancer for YouTube™

    Enhancer for YouTube™

    Tons of features to improve your user experience on YouTube™.

    610,140 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

    171,254 users

  • LASER CAT

    LASER CAT

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

    3,060 users

  • Firefox Color

    Firefox Color

    Build, save and share beautiful Firefox themes.

    36,345 users

  • ScrollAnywhere

    ScrollAnywhere

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

    5,641 users