This extension hasn't worked for 2 months. Yes, it lets you download videos, but it will not include the sound for any video downloaded; this includes in any format and even after editing the setup parameters. There are other extensions out there that do work.

Отлично!

Бесполезная шляпа - не в состоянии скачивать с ютуба видео со звуком

No sound from YouTube downloads. All options show a red no-sound icon. Each video takes an hour to download over fast fiber optics :(

only lets me download mp4 with no sound so its pointless garbage

Does not work in U.S.

Finally one of these that actually works.

works, but also shows a green download arrow over the top of every image on twitter, with no ability to disable in the extension settings. Also requests access to ALL sites rather than a dedicated site list. Appears to be closed source despite listed license also, cannot find any link to source code on the listen website
*** because it is a working youtube downloader, but the security issues and bugs downgrade it. (closed source and universal read/write access is not great)