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

BY FIREFOX

Mozilla VPN Extension

You’re in control. Turn off VPN when a website won’t work and set different locations for different websites. Windows only.
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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Productivity tools
Productivity tools
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YouTube customization
YouTube customization
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Privacy & Security extensions
Privacy & Security extensions
See staff picks
Top rated themes
Tab managers
  • 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!

    23,017 users

  • Tree Style Tab

    Tree Style Tab

    Show tabs like a tree.

    217,332 users

  • Simple Tab Groups

    Simple Tab Groups

    Create, modify, and quickly change tab groups

    101,535 users

  • OneTab

    OneTab

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

    170,276 users

Twitch extensions
  • BetterTTV

    BetterTTV

    Enhances Twitch and YouTube with new features, emotes, and more.

    489,924 users

  • Alternate Player for Twitch.tv

    Alternate Player for Twitch.tv

    Alternate player of live broadcasts for Twitch.tv website.

    36,283 users

  • Twitch Chat pronouns

    Twitch Chat pronouns

    Add Pronouns to Twitch Chat

    16,073 users

  • Unwanted Twitch

    Unwanted Twitch

    Hide unwanted streams, games, categories, channels and tags on: twitch.tv

    5,845 users

“security” tagged extensions
  • uBlock Origin

    uBlock Origin

    Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.

    9,600,573 users

  • AdGuard AdBlocker

    AdGuard AdBlocker

    Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.

    1,398,405 users

  • Bitwarden Password Manager

    Bitwarden Password Manager

    At home, at work, or on the go, Bitwarden easily secures all your passwords, passkeys, and sensitive information.

    866,556 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.

    285,552 users