Tried it on a couple of websites (including Youtube) with playing media but it didn't work for me. It "sees" the video and seems to try but all I get is the spinning wheel. Running Win7(64) with Firefox 115.18.0esr (64-bit). I used this successfully several years ago, but not now. I see many 5-star reviews posted very recently - so what gives!?
UPDATE 2025-01-22 was updated today. reinstalled, still failed - same behavior on different websites.

Used to be good, but now plasters the downloaded video with a QR code to buy the Pro version. So is now useless.

Slaps a big barcode watermark on your screen. plus it requires additional installation. not recommended.

It works quite well, although it requires an additional component to be downloaded and installed on your computer. However, with the free version, you’ll have the catch of a huge and ugly QR code appearing on everything you save.

Was really good until they began plastering a QR code all over the downloaded videos! Deleted.

Awful extension. Now stamps a gigantic QR code on top of the video that links to a "Lifetime License" that you can buy to remove the QR codes.
Do yourself a favour and just download something like JDownloader or learn how to use FFmpeg.

Помойное не до дополнение. Раньше хоть список вебсайтов был внутри полезный и для онлайн радио можно было ссылку для локального плеера вытащить. А теперь - просто кусок вонючего чего-то стало(. Про загрузку внешней программы для закачки видео я вообще молчу, дичь грёбаная.
P/s/: о, ебаные купленные отзывы подъухали, на эту помойную не до качалку.

Giant QR code is put on videos to pay for using addon

Giant watermark to coerce you into buying a licence.

Maintenant ajoute un qrcode qui prend un tier de l'écran, poubelle.

il ne fonctionne plus

Randomly became a paid app, all video downloads are covered with a QR code now...

ne fonctionne plus

Became paid-only, covered my downloaded video with a watermark in an extortion scam.

Now pay to use.
A QR code is generated on each video downloaded, hiding a third of the screen.

the CoApp makes the feisty & resistant videos download, (with a watermark for youtube) unless you buy a conversion license. ...Video DownloadHelper is still a very helpful for non youtube sites.

it simply doesn't work

This used to be an excellent add on but now it keeps presenting videos in German, rather than English. I would advise everyone to ignore it until this problem is fixed.

Ainda dá muitos problemas apesar de se informar o autor sobre os problemas, eles persistem sem alteração.

False Promises ... Covers the video you downloaded and asks for payment AFTER u already downloaded !!!!