Add a button to convert youtube to MP3 directly. Convert the video into mp3 with the best quality. The bitrate will be calculated precisely, which ranges from 128kbps to 320kbps depending on original file. Allows you to convert any online video into MP3 audio file. Support most oneline video sites like YouTube, Vemo, Viki, Dramafever, TED and 5000 more.

Replaces the meaningless play symbol with a YouTube-text favicon.

Displays a link below YouTube videos to enable/disable auto replay.

Tries to turn embedded Youtube videos into thumbnails - this is based on "Stop Overzealous Embedding" https://openuserjs.org/users/ConnorBehan

Removes all "You are leaving our site" and redirection stuff from links

Adds a button that lets you download and convert to mp3 YouTube videos .

Adds a download menu to YouTube videos.

The Easy YouTube mp3 Add-on includes a Button on any YouTube Page and allows you to convert the YouTube Video to a mp3 with just one click.

Youtube Downloader: all in one script to get Vimeo, Facebook, Dailymotion videos for free

Plays video directly in pages with links to video hostings.

Inserts a hop to all watch links on YouTube in order to disable auto-play. The link won't be inserted by a normal click, only middle-click/context menu/D'n'D.

Changes user interface for youtube videos to native instead of default one

opens youtube videos in TV(https://www.youtube.com/tv#/) mode. other pages like http://www.youtube.com/feed/subscriptions will open in their default desktop view. TV playback seem to be only avaliable to MSE compatible browsers like latest stable Chrome or Nightly Firefox

Opens any youtube video in gaming (https://gaming.youtube.com/) mode. other pages like http://www.youtube.com/feed/subscriptions will open in their default desktop view. Works for both regular and live videos of any content not only gaming

Panning audio slider for Twitch and Youtube, ads might interfere.

Control autoplay in your playlists

Podnosi pasek akcji na pasek przycisku subskrypcji, stale wyświetla ilość subskrypcji a do daty dodaje pełną nazwą miesiąca.

Removes the #YoutubeRewind button in the top left

Easily remove items from your YouTube subscription feed with a single click

Moves the YouTube video to the top of the website and fill the window with the video player.

Reverse the order of YouTube playlists

Block loading of videos/audio (flash or html5) at the site being visited. Click to enable once, alt-c to enable for site permanently.

Prevent sites from hijacking the middle mouse button for their own purposes

Tries to turn embedded Youtube videos into links

Download subtitles or captions from Youtube, TED, Vimeo, Dramafever, Dailymotion, etc. Support mutiple languages. For Youtube, both closed captions (CC) and automatic captions (auto-generated subtitles) can be downloaded if they are available. Fast and easy to use.