The most reliable and easy to use YT video downloader there is. Not too many bells and whistles. Does what it says w/o any fuss, has been around for a long time so you know it's reliable and safe, and is well worth the small donation to keep the service going.

pay to play

requires payment.

Been using this add-on for years, it works great to deliver the 720p and 1080p Youtube vids that have broken the other downloaders. I very gladly donated $30 to help keep this system up and running, and also donated $20 previously to use on a computer I lost in Hurricane Harvey.

This is perfect for downloading YouTube videos. I donated 10 bucks to get the pro features & it seems to have been worth it. Sometimes when YouTube changes something, the button might not appear – you gotta click on the extension icon & select a link in that case. Also sometimes I get a 'already processing. please wait or come back later' or similar message when selecting MP3 conversion. As a workaround, I just download the video in MP4, open that up in Audacity, then export to MP3. Can't say if that's a bug or something else. The developer seems to stay on the ball with fixing stuff, so I trust that issues will get fixed sooner or later. Overall, this is the best YouTube video downloader I've seen yet... :D

Beeinflusst die Favoriten bis zum nicht funktionieren. Kein löschen oder speichern selbiger. Habe dieses Add-On deinstalliert- alles funktioniert wieder.

Does not work

Works just fine.

nice :)
Not for Chrome-Browsers?
https://chrome.google.com/webstore/category/extensions

Must-have addon. Regardless of paying a small amount of money for pro-features, it gives exactly what you want it to have.
And quick responsiveness from a creator.

Paywalled.