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

Log in
RECOMMENDED

Control Panel for Twitter

Re-take control of Twitter/X and customize your experience.
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
New Recommended Extensions
New Recommended Extensions
Explore now
Reddit revolutionized
Reddit revolutionized
See staff picks
Extension Starter Pack
Extension Starter Pack
See staff picks
Recommended extensions
  • Stylebot

    Stylebot

    Change the appearance of the web instantly

    Ankit Ahuja

    9,907 users

  • SingleFile

    SingleFile

    Save an entire web page—including images and styling—as a single HTML file.

    gildas

    81,747 users

  • Awesome Screenshot & Screen Recorder

    Awesome Screenshot & Screen Recorder

    Full page screen capture and screen recorder 2 in 1. Share screencast video instantly.

    Diigo Inc.

    102,912 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

    36,902 users

Trending themes
Tab managers
  • Tree Style Tab

    Tree Style Tab

    Show tabs like a tree.

    Piro (piro_or)

    176,334 users

  • OneTab

    OneTab

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

    OneTab Team

    169,520 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

    155,696 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

    78,162 users

Social media extensions
  • Return YouTube Dislike

    Return YouTube Dislike

    Returns ability to see dislike statistics on youtube

    Dmitry Selivanov

    943,719 users

  • BetterTTV

    BetterTTV

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

    NightDev

    511,600 users

  • Sink It for Reddit

    Sink It for Reddit

    Upgrade your Reddit experience with color coded comments, easier nav, sub-reddit blocking, gestures for upvoting, ad+nag blocking, and more. It's like RES, for mobile!

    SpecterAscendant

    7,526 users

  • YouTube Search Fixer

    YouTube Search Fixer

    Remove ALL distracting search results, redirect shorts back to legacy page and try little visual changes suited for low resolution screens.

    Phoenix

    34,549 users

Recommended themes
Accessibility 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

    1,316,651 users

  • 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

    211,001 users

  • Dark Mode

    Dark Mode

    Dark theme and night shift mode for every website. Care your eyes, use Dark Mode for night and daily web browsing.

    Dark Mode

    46,541 users

  • Sidebery

    Sidebery

    Vertical tabs tree and bookmarks in sidebar with advanced containers configuration, grouping and many other features.

    mbnuqw

    61,393 users

“youtube” tagged extensions
  • Video DownloadHelper

    Video DownloadHelper

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

    Sarah

    1,843,005 users

  • Ghostery – Privacy Ad Blocker

    Ghostery – Privacy Ad Blocker

    The best privacy tool and ad blocker extension for Firefox. Stop trackers, speed up websites and block ads everywhere including YouTube and Facebook.

    Ghostery

    1,044,125 users

  • Return YouTube Dislike

    Return YouTube Dislike

    Returns ability to see dislike statistics on youtube

    Dmitry Selivanov

    943,719 users

  • SponsorBlock - Skip Sponsorships on YouTube

    SponsorBlock - Skip Sponsorships on YouTube

    Easily skip YouTube video sponsors. When you visit a YouTube video, the extension will check the database for reported sponsors and automatically skip known sponsors. You can also report sponsors in videos. Other browsers: https://sponsor.ajay.app

    Ajay (SponsorBlock)

    716,199 users

Change the way Firefox looks with themes.

Change the way Firefox looks with themes.