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

RECOMMENDED

EPUBReader

Read ePUB files right in Firefox—increase font size, page dimensions & more.
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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
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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!

    22,148 users

  • Tree Style Tab

    Tree Style Tab

    Show tabs like a tree.

    221,212 users

  • Simple Tab Groups

    Simple Tab Groups

    Create, modify, and quickly change tab groups

    103,191 users

  • OneTab

    OneTab

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

    172,634 users

Twitch extensions
  • BetterTTV

    BetterTTV

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

    490,196 users

  • Alternate Player for Twitch.tv

    Alternate Player for Twitch.tv

    Alternate player of live broadcasts for Twitch.tv website.

    36,176 users

  • Twitch Chat pronouns

    Twitch Chat pronouns

    Add Pronouns to Twitch Chat

    16,068 users

  • Unwanted Twitch

    Unwanted Twitch

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

    5,842 users

“password manager” tagged extensions
  • Bitwarden Password Manager

    Bitwarden Password Manager

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

    877,595 users

  • RoboForm Password Manager

    RoboForm Password Manager

    RoboForm, the #1 ranked Password Manager makes your life easier by remembering passwords and logging you into websites automatically

    61,784 users

  • LastPass Password Manager

    LastPass Password Manager

    LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.

    516,083 users

  • 1Password: Password Manager

    1Password: Password Manager

    The best way to experience 1Password in your browser. Easily sign in to sites, generate passwords, and store secure information, including logins, credit cards, notes, and more.

    381,456 users