After installation the first 10 Downloads have been unsuccessfully and there have been too much file extensions.
Then I checked the Download Path and now I can choose between MP3, MP4, OGG.
Fast converter, fast download (depending on the provider download speed).
The best Downloader for FF.

Pub pour des extensions, refus de fonctionner dans certaines régions... addon inutile et peut-être nuisible.

Worked for a while, and now it does not. Says, it is not available for my region, even using different regions using a VPN. Perhaps there were not enough Donations? I gave it three stars for the few videos I successfully had converted. Wish this still worked, though.

Doesn't give the user any option at all. Downloads automatically the best resolution it can get : 720P.
No matter what I try on PC, the best solution to download Youtube remains Android's Tubemate (with Nox)...

Doesn't work. Says it's not available in my country (UK).

Waouuuu... Génial !

ist super einfach