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!

    22,702 users

  • Tree Style Tab

    Tree Style Tab

    Show tabs like a tree.

    217,492 users

  • Simple Tab Groups

    Simple Tab Groups

    Create, modify, and quickly change tab groups

    101,528 users

  • OneTab

    OneTab

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

    170,328 users

Twitch extensions
  • BetterTTV

    BetterTTV

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

    489,794 users

  • Alternate Player for Twitch.tv

    Alternate Player for Twitch.tv

    Alternate player of live broadcasts for Twitch.tv website.

    36,251 users

  • Twitch Chat pronouns

    Twitch Chat pronouns

    Add Pronouns to Twitch Chat

    16,065 users

  • Unwanted Twitch

    Unwanted Twitch

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

    5,845 users

“scholar” tagged extensions
  • Web Archives

    Web Archives

    View archived and cached versions of web pages on various search engines, such as the Wayback Machine and Archive․is.

    66,778 users

  • Google Scholar Button

    Google Scholar Button

    Lookup scholarly articles as you browse the web.

    108,780 users

  • Pix Companion

    Pix Companion

    Browser extension for Pix

    81,166 users

  • Unpaywall

    Unpaywall

    Get free text of research papers as you browse, using Unpaywall's index of ten million legal, open-access articles.

    71,989 users