Added the add-on. Went to Youtube. Tried to pull a single mp3 and the first message I get is "Converting these streams to downloadable formats for you needs powerful server infrastructure, therefore 1080p/mp3 downloading has been limited to PRO users." FAIL. Removed.

It doesn't work.

basically a demo

What they don't tell you is that You have to be a "pro" user in order to download mp3 and 1080 hd videos. In that case I'll rather get youtube premium.

Used to be best free Youtube content downloader. Now it's not free

charges to download HD files, but other extensions (e.g. Youtube Download Full HD) do not.
or you can use websites as https://y2mate.com .

Auch hier ist KEIN Download möglich.
Wieder nur firefox

Developer claims that Youtube doesn't allow combined audio and video downloads on 720p. This is NOT true. Only 1080p and above has this limitation.

dosent work. need another addon or webpage.

Uma droga, tem que pagar se quiser baixar mp3.

Payant...

Nie można zapisać w formacie MP3, bo ""720p+ downloading has been limited to PRO users"".

"720p+ downloading has been limited to PRO users"

Впервые пишу отрицательный отзыв, тем более на рекомендованное расширение от Firefox. Данный плагин не работает, совсем. В формате FuiiHD 1080 выскакивает окно, только для пользователей PRO версия. Вопрос ? За чем данное расширение помещать в магазин.

Saw the "Youtube switched to separate audio/video streaming technology for higher quality formats" message for every download attempt. Requires upgrade to Pro. I'll look elsewhere.

11/2021 - Tried it again. No download option appears anywhere for any YouTube video.

Asking to PAY !!! Go elsewhere !