One of the better (or best ones) ones on the add-ons "market", where are tons of similar...

Wonderful little add-on that adds a ton of useful tiny tweaks to YouTube, and can go even further than the minimal settings I have on. The toolbar is fully customizable and one is able to make it almost look like a built-in part of the site. One thing to suggest to the dev, adding support for the Firefox built-in PnP would be super useful, if only because the sizing appears to automatically scale a bit better than the presets.

This is an excellent, must-have add-on if you ever watch YouTube. Make the YouTube page stop autoplaying videos, gives you the choice of several Dark themes, allows you to automatically stream videos in your desired quality (for example, low quality if you have limited internet speeds, or high quality if you prefer HD, etc. etc.). Great add-on

Die Erweiterung funktioniert prächtig! Mit ihrer Hilfe kann man jede Werbeanzeige überspringen / überspringen lassen.

Great update thank you

Énorme, merci pour cet addon ! :-D