For use with: https://github.com/PXgamer/youtube-dl-php

Adds the ability to block videos from specific channels and users

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Old YouTube 2016 Layout | Old watchpage | Change thumbnail & video player size | grayscale seen video thumbnails | Hide suggestion blocks, category/filter bars | Square profile-pictures | Disable hover thumbnail previews | and much more!

9Convert Downloader: Download Video and Audio for free

Spielt bei Disconnects das Video dort weiter wo es abgrebrochen wurde.

Automatically translate any non-specified language Subtitles/CC.

Add a PiP button to the player to easy enter Picture-in-Picture mode.

Back to watch page from shorts feeds by one-click button, open shorts on the watch page in channel videos.

Go to Embed page to uses Subtitles/CC auto-translate menu on in-page fullscreen player, for mobile users.

On left corner

Enables the fullscreen button in all embedded youtube videos

Shows a scaled down version of the play bar and video metadata on YT Leanback (https://youtube.com/tv)

Prevents annoying ads from displaying

Changes flash embedded youtube videos to html5

Agrega

This addon skips youtube ad automatically (This is not an ad blocker)

set youtube video speed to 1.5x(you can set your own speed) automatically.

Automatically selects the YouTube subtitles with the text "English (auto-generated)"

user.js for click "Skip Ad" button automatically.

Pauses auto-playing videos. Excludes YouTube (has its own autostopper script com.vsubhash.js.youtube-annoyances-remover); Supports Firefox-based browser up to Version 36. Newer versions should use a UserAgent (UA) spoofer add-on. YouTube loads a lighter version of the YouTube page for older browsers. This script will require the GreaseMonkey add-on to run the script inside a browser.

Permet de marquer simplement une chaine youtube

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.

Download YouTube videos and audios for free without external service, convert YouTube to all formats.

Redirects bestofyoutube directly to youtube videos.