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.
34,532 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 go to https://github.com/Sav22999/emoji
12,570 users
Improve YouTube! (Open-Source for YouTube)
Make YouTube tidy & powerful! YouTube Player Size Theme Quality Auto HD Colors Playback Speed Style ad block Playlist Channel H.264
8,809 users
1,333 users
BetterTTV
Enhances Twitch with new features, emotes, and more.
387,625 users
Alternate Player for Twitch.tv
Alternate player of live broadcasts for Twitch.tv website.
22,347 users
Twitch Chat pronouns
Add Pronouns to Twitch Chat
9,940 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.
6,366 users
ChatReplay
Watch stream archive videos with chat replay.
5,582 users
Unwanted Twitch
Hide unwanted streams, games, categories, channels and tags on: twitch.tv
3,138 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.
2,915 users
Twitch Previews
Live previews when hovering over streams on twitch | A bunch of quality of life improvement features to twitch.
2,325 users
Holodex Plus
Holodex.net companion extension for enhancing the viewing experience
2,191 users
Gumbo: Twitch Companion
Swollen companion keeping you updated on your Twitch experience
2,029 users
audioff - audio device selector
Select audio output device for each tab.
1,573 users
Chatterino Native Host
Replaces the chat on Twitch.tv with Chatterino. Only works on Windows.
1,430 users
uView Player Picture-in-picture Extension
With this extension, you can open videos like Anime, MP4, Youtube, Twitch, Netflix, Crunchyroll and many other online videos in the uView Player app, giving you a great viewing experience for all types of videos. Try it out today!
1,229 users
Youtube mp3 & video downloader
Firefox extension to convert and download Youtube all videos for free in MP3 format.
1,147 users
Tumblr – Post to Tumblr
Post to Tumblr right from your browser toolbar!
1,058 users
Allkeyshop - Compare Game Prices
Shows you the best deals available while you're surfing on the web
934 users
Online Video Downloader Free
Online video downloader free web app on chrome, windows and phone help you download any video url on internet in MP4 formats from videos website.
717 users
Automate Click
This add-on can automate click actions that users might have to perform when visiting a website. For example accept or reject cookie consent messages.
671 users
Twitch Ad Blocker
Tired of Ads on Twitch? Block all ads and watch videos without interruptions.
667 users
Twitch Chat Overlay
Overlay the Twitch chat when watching a stream in fullscreen.
664 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!
617 users