DATAMINING AND THROTTLING. The extension worked at first, but they have a customized option in the extension's management section that gives the app full unilateral excess to your total web history, typing and any credit cards you submit while this extension is installed. An App that only works on Youtube should not have access to what Credit Cards or purchases I've made on Amazon. This is set to "default" upon install, and the Extension does not notify you of access to ALL websites. Already reported to Firefox for violations. Also throttles what quality you can download (falsely claims as errors when trying to download above 480p, but only AFTER you deny it's spammy (on screen) requests to give them money and "upgrade" the extension. So yeah, overall it data-mines you without your knowledge and the extension deliberately throttles your download ability after rejecting to upgrade. The "don't show notifications" option also does not work, because again, this Firefox extension is designed to delete your preferences only after 7 days so it can continue to send you spammy requests to "upgrade".

Doesn't work with "You"

소스 구하는 용도로 쓰려고 했는데
프레임, 비트레이트, 샘플레이트 다 작살내놔서 사용못함.

Generating download link, pls. wait...

ne fonctionne pas

Doesn't work. Creates files of 0 bytes

stuck at video processing 0% (network error)

mp4の音質が悪すぎる

Real good Extension to have to watch videos when the internet is disconnected. Works fine.

first 0 byte errors, and now Network connection errors. this used to be a really good extension

don´t work

Stop endlessly popping up every time I start firefox.

Does not work.
Claims it downloads, also claims success, but the files created are empty. 0 bytes. It probably worked at some point, and might again in the future, but at the time I am writing this review march 2026, it does not work. I think the least the creator could do is stop the addon from saying it is a success if the created files are empty.

some months ago, this extension just BRICKED. if you tried to download a video after that time, it would download the file twice, display storage as "0.0 mb" (indication of format error), and not be able to play.

tldr: bricked some months ago

ne fonctionne pas

It's gotten bad since all the different versions with languages got added. It downloads two copies and none of them work. Just keep it simple and stop adding the pointless languages.

Fails constantly. File tries to form but then ends u 0 bytes. Has been worthless for a long time

It's not working. At all. Don't know what I need to do to make it work, but it's not working.

I can't get it to work. A YouTube video "downloads" in 3 seconds but appears nowhere in my computer.