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

Log in
RECOMMENDED

PocketTube: Youtube Subscription Manager

The easiest way to manage YouTube subscriptions.
Get the extension

Extensions are like apps for Firefox.

They add features to Firefox to make browsing faster, safer, or just plain fun.
See all extensions
Extension Starter Pack
Extension Starter Pack
See staff picks
Privacy & Security
Privacy & Security
See staff picks
Twitch extensions
Twitch extensions
See staff picks
Recommended extensions
  • Tab Session Manager

    Tab Session Manager

    Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.

    sienori

    149,355 users

  • Simple Tab Groups

    Simple Tab Groups

    Create, modify, and quickly change tab groups

    Drive4ik

    63,898 users

  • BetterTTV

    BetterTTV

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

    NightDev

    473,313 users

  • AdBlocker for YouTube™

    AdBlocker for YouTube™

    Remove all annoying ads from YouTube.

    AdblockLite

    475,772 users

Popular themes
Tab managers
  • Auto Tab Discard

    Auto Tab Discard

    Increase browser speed and reduce memory load and when you have numerous open tabs.

    tlintspr

    87,989 users

  • OneTab

    OneTab

    Save up to 95% memory and reduce tab clutter

    OneTab Team

    151,838 users

  • Tab Session Manager

    Tab Session Manager

    Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.

    sienori

    149,355 users

  • Tab Reloader (page auto refresh)

    Tab Reloader (page auto refresh)

    An easy-to-use tab reloader with custom reloading time settings for individual tabs

    James Fray

    75,969 users

Trending extensions
  • Youtube

    Youtube

    Download YouTube videos in full 1080p HD or extract MP3 audio with a single click. Fast, free YouTube video downloader and YouTube to MP3 converter for high-quality downloads.

    Youtube Download

    898 users

  • VPN

    VPN

    Browse faster with secure and flexible VPN access across multiple countries.

    YNS DEV

    1,119 users

  • DIM Aegis Overlay

    DIM Aegis Overlay

    Display Aegis's meta spreadsheet rankings, DIM wishlists, and Light.gg's Roll Appraiser grades directly inside Destiny Item Manager (DIM).

    dilligaf_m8

  • Bitcoin price ticker

    Bitcoin price ticker

    Display bitcoin price using Binance market data in a browser toolbar

    Griops

    490 users

Recommended themes
Social media extensions
  • Return YouTube Dislike

    Return YouTube Dislike

    Returns ability to see dislike statistics on youtube

    Dmitry Selivanov

    900,276 users

  • BetterTTV

    BetterTTV

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

    NightDev

    473,313 users

  • Control Panel for Twitter

    Control Panel for Twitter

    Gives you more control over Twitter and adds missing features and UI improvements

    Jonny Buchanan

    50,505 users

  • Augmented Steam

    Augmented Steam

    Augments your Steam Experience

    IsThereAnyDeal

    61,869 users

“mp3” tagged extensions
  • Easy Youtube Video Downloader Express

    Easy Youtube Video Downloader Express

    A simple extension for superfast and easy YouTube downloads in FLV, 3GP, MP3, MP4, 720p, and 1080p formats.

    Dishita

    348,110 users

  • Global Speed - Video Speed Control

    Global Speed - Video Speed Control

    Set a default speed for video and audio.

    POLYWOCK

    50,248 users

  • Librezam

    Librezam

    Open-source music recognition extension using Shazam API (also supports Audd, ACRCloud, Tencent, and NetEase APIs as alternative backends)

    FoxRefire

    43,975 users

  • YouTube mp3

    YouTube mp3

    The YouTube-mp3 Add-on generates a "MP3" button on YouTube. Convert YouTube to mp3 and download the file to your device.

    Addon Developer

    27,950 users

Change the way Firefox looks with themes.

Change the way Firefox looks with themes.