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.
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.
Alternate player of live broadcasts for Twitch.tv website.
Anonymous, secure and unrestricted VPN service! Unblock websites and access unlimited content with a free VPN by uVPN
Add Pronouns to Twitch Chat
Set a default speed for video and audio.
VPN Unlimited - reliable, easy-to-use, and lightning-fast VPN extension for Firefox browser
Watch stream archive videos with a chat replay.
The best Free Firefox extension for content, security & privacy. Enjoy unlimited bandwidth and speed.
Stop the YouTube rabbit hole. Customize YouTube's user interface to be less engaging.
Cast videos and music from more than 50 sites (YouTube, Twitch, Vimeo, SoundCloud, torrents, …) to Kodi with context menu and remote control.
Popupblocker can block every popup. Many websites open new windows with ads, when you try to mark text or click something. This add-on will block these and show a really small notification.
Improves the viewing experience of YouTube livestreams and premiers with an enhanced theater mode, including features like moving chat to the left side or on top of the video.
Holodex.net companion extension for enhancing the viewing experience
Replaces the chat on Twitch.tv with Chatterino. Only works on Windows.
Adds Reddit comments to Youtube videos!
Live previews when hovering over streams on twitch | A bunch of quality of life improvement features to twitch.
Resurrect the dislike count, enhance your experience with 'Youtube Dislikes Viewer' or more commonly known as 'Yt Dislikes Viewer'.
This extension add a download button on any Youtube page and allows you to download MP3 & Video with just one click.
Overlay the Twitch chat when watching a stream in fullscreen.
YouTube Downloader is a free and unlimited add-on for youtube to convert videos to mp3 or mp4.