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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.
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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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Recommended extensions
  • Read Aloud: A Text to Speech Voice Reader

    Read Aloud: A Text to Speech Voice Reader

    Read out loud the current web-page article with one click. Supports 40+ languages.

    LSD Software

    186,148 users

  • Augmented Steam

    Augmented Steam

    Augments your Steam Experience

    IsThereAnyDeal

    60,737 users

  • Dictionary Anywhere

    Dictionary Anywhere

    View definitions easily as you browse the web. Double-click any word to view its definition in a small pop-up bubble. It also supports Spanish, German, French language alongside English. Enjoy Reading Uninterrupted!!!.

    meetDeveloper

    43,669 users

  • Measure-it

    Measure-it

    Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

    Trishul

    25,837 users

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!

    BillK

    24,491 users

  • Tree Style Tab

    Tree Style Tab

    Show tabs like a tree.

    Piro (piro_or)

    213,990 users

  • Simple Tab Groups

    Simple Tab Groups

    Create, modify, and quickly change tab groups

    Drive4ik

    100,672 users

  • OneTab

    OneTab

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

    OneTab Team

    168,973 users

Popular extensions
  • uBlock Origin

    uBlock Origin

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

    Raymond Hill

    9,584,648 users

  • Video DownloadHelper

    Video DownloadHelper

    Download videos from the web. Easy, smart, no tracking.

    Paul

    1,885,914 users

  • Privacy Badger

    Privacy Badger

    Automatically learns to block invisible trackers.

    EFF Technologists

    1,869,183 users

  • AdGuard AdBlocker

    AdGuard AdBlocker

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

    Adguard Software Ltd

    1,399,720 users

Recommended themes
Twitch extensions
  • BetterTTV

    BetterTTV

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

    NightDev

    489,474 users

  • Alternate Player for Twitch.tv

    Alternate Player for Twitch.tv

    Alternate player of live broadcasts for Twitch.tv website.

    Alexander Choporov (CoolCmd)

    36,577 users

  • Twitch Chat pronouns

    Twitch Chat pronouns

    Add Pronouns to Twitch Chat

    Alejo Pereyra

    16,032 users

  • Unwanted Twitch

    Unwanted Twitch

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

    kwaschny.net

    5,854 users

“dark mode” tagged extensions
  • Dark Reader

    Dark Reader

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

    Dark Reader Ltd

    1,271,134 users

  • Enhancer for YouTube™

    Enhancer for YouTube™

    Take control of YouTube and boost your user experience!

    Maxime RF

    663,208 users

  • Block Site

    Block Site

    A customizable, password-protected website blocker and redirector.

    Ray

    74,737 users

  • 'Improve YouTube!' 🎧 (For YouTube & Video)

    'Improve YouTube!' 🎧 (For YouTube & Video)

    Youtube Extension. Powerful but lightweight. Enrich your Youtube & content selection. Make YouTube tidy&smart! Layout Filters Shortcuts Adblocker Playlist

    code-for-charity

    55,163 users

Change the way Firefox looks with themes.

Change the way Firefox looks with themes.