Turn Off the Lights for Firefox
The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube and Beyond. Dark mode for all websites. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, etc.
42,529 users
'Improve YouTube!' 🎧 (For YouTube & Video)
Youtube Extension. Powerful but lightweight. Enrich your Youtube & content selection. Make YouTube tidy&smart! Layout Filters Shortcuts Adblocker Playlist
33,495 users
Emoji
It permits just with a single click to copy an emoji. There is a search-box and the "Most used emojis" section (the first one). If you want to send feedback or report bug, please contact me: https://www.emojiaddon.com/help
21,366 users
BetterTTV
Enhances Twitch and YouTube with new features, emotes, and more.
444,755 users
Watch2Gether
The official Watch2Gether Firefox extension allows you to share content from a supported site (Youtube, Vimeo, ...) directly into a Watch2Gether room. The new W2gSync feature allows you to sync-watch videos from any website on Watch2Gether.
51,713 users
Alternate Player for Twitch.tv
Alternate player of live broadcasts for Twitch.tv website.
25,108 users
Netflix Party is now Teleparty
Watch Netflix, Youtube, Disney Plus, Hulu, HBO, and Amazon Prime Video in sync with friends
24,720 users
Twitch Chat pronouns
Add Pronouns to Twitch Chat
15,664 users
ChatReplay
Watch stream archive videos with chat replay.
12,279 users
UltraWideo
The cross-browser extension that manipulates video aspect ratio to fit your entire screen. Take control over cinematic black bars. Netflix | Prime Video | Disney+ | Hulu | ESPN | + Many others...
11,530 users
AudD® Music Recognition
Identify music from any website in your browser
11,107 users
Twitch Ad Blocker
Tired of Ads on Twitch? Block all ads and watch videos without interruptions.
8,025 users
Purple Ads BlockerPurple Ads Blocker
Purple AdBlock is a adblock for Twitch.tv
7,606 users
Zoom for Firefox
Zoom in or out on web content using the zoom button and mouse scroll wheel for more comfortable reading. That to each percent value. It helps you to zoom easily in and out a web page. Thanks to the slider and the zoom buttons.
5,852 users
Color by Fardos - Color Picker
Pick colors from websites, save colors & gradients, get matching shades and tints and create beautiful gradients.
5,527 users
Unwanted Twitch
Hide unwanted streams, games, categories, channels and tags on: twitch.tv
5,311 users
Holodex Plus
Holodex.net companion extension for enhancing the viewing experience
3,873 users
uView Floating Player - Picture in Picture
Watch Youtube video and more in a floating window Picture in Picture (PIP) on top of any other application while multitasking or gaming on PC. Say goodbye to alt-tabbing.
3,684 users
Allkeyshop - Compare Game Prices
Shows you the best deals available while you're surfing on the web
3,477 users
Gumbo: Twitch Companion
Swollen companion keeping you updated on your Twitch experience
3,391 users
Stream Recorder
Firefox extension that records streams and videos.
3,390 users
Tab Volume
Control your tab volume.
3,320 users
Cast Kodi
Cast videos and music from more than 50 sites (YouTube, Twitch, Vimeo, SoundCloud, torrents, …) to Kodi with context menu and remote control.
3,151 users
Previews (For TTV & YT)
Live previews when hovering over streams on Twitch & YouTube | A bunch of quality of life improvements for TTV & YT
2,864 users
Audio Output Selector
Allows you to change the audio output device of <audio> and <video> elements. Requires media.setsinkid.enabled set to true in about:config!
2,661 users