Mozilla really do need to remove this extension from the "recommended" section. Or even remove it altogether at this point.
It used to do exactly what it says on the tin, but nowadays it adds a large watermark in the corner of every video you download. If you want to remove the watermark you need to pay $28.50.
Paying almost $30 for a video downloader is ridiculous. If you already have this addon installed and you're reading this review, remove it immediately and find an alternative.

War für lange Zeit ein super kostenloses Add-On, aber seit die riesigen QR-Codes in die Videos geklebt werden, ist es schlecht zu gebrauchen. Wasserzeichen ist viel zu groß. Damit sind Videos kaum richtig zu betrachten. Macht es kleiner, wie vorher.

Had to drop this after the watermark thing. Makes downloading pointless.

Would recommend JDownloader 2, which works on many of the same sites as this does, and doesn't add any watermarks blocking 1/6 of your video.

Failed to download a video from youtube

No longer free, now a paid product. Massive opaque watermark (QR code) in the corner that requires purchase to remove. I wouldn't even mind buying it if were say $5, but they are asking for $28.50, simply outrageous. There is also nothing on the info page that tells you this before hand.

unlike in the past it now requires a purchase. uninstalling immediately.

This used to work maybe 10 years ago, but now it is next to useless. It can't download from many sites, and when it does it fails half way through. Hopeless rubbish.

Wasserzeichen viel zu gross. Das Wasserzeichen verdeckt ein Viertel des Videos. In meinen Augen also völlig Sinnlos. Macht es deutlich kleiner.

Icon ist nicht sichtbar, allso nicht zu benutzen

Too expensive.

SCAM. Now big, really big watermark is being placed on your every film. It just broke my movie

Tells you you need to download additional software in order to download videos, theeeeeeeeen it tells you you need to pay in order to remove a watermark that wasn't there before. Scam extension that shouldn't be installed at all.

Adding a watermark out of nowhere made this addon immediately unusable. There are many more out there, you are reducing your market share and word-of-mouth. Removed and will never re-install.

какой смысл, если видео портит QR. Удаляю. del

Udaje że jest za darmo a pobiera filmy z kodem QR żeby płacić... - uwaga SCAM !

There is a huge QR code in the video! That makes this extension completely useless. It was so good previously!

Worked great for a long time, until today, when the watermarks started. Oh well, it was nice while it lasted.