Let me download the first few videos from various sources with no issues. Prompted me to download companion software for the fourth video I tried downloading. Had I downloaded the companion software, I assume I would have run into the "QR code" that other reviewers are complaining about. Don't waste your time.

It is not free anymore.
It downloads the video, but add an ugly QR code on the capture, for you to buy an extension. Shame

bin gespannt ob es überhaupt funktioniert.....nein. es funktioniert nicht

While this does work, they make you download a separate application that allows you to actually download the videos and then asks you to pay 30 dollars for a "conversion license". There are other options available.

The QR Code for some video downloads turns this in one of the worst add-ons available. Either be upfront and charge for the add-on, or make it as an optional donation. This "fake request" for support is cowardly and makes me opt to not use it and not recommend it.

ダウンロードできません。
ライセンス購入済みですがもうこのアドオンは使わないで外部ツールでダウンロードしています。

what a terrible piece of software. I downloaded a video and once the download was complete, it said that there would be a QR code watermark asking me to purchase. That QR code that covers 1/4th of the video!!! I am not saying that this extension should be free, but man, when it says nothing about such things before download - I just wasted 5 Gigs of my bandwidth. Such kind of sofware that tries to trick you is the worst!

ALL downloads place an enormous QR code watermark over the downloaded file in all cases, even in the cases of files you can easily extract or download yourself. The extension has pivoted to full cashgrab and I imagine will vanish or break when that cash flow dries up in a year or so, and is not worth purchasing. Consider alternatives like this yt-dlp (first result on github if you google it) as an alternative to paying for this terrible software.

big ass watermark

Huge fucking watermark on every video, and begs you for 28$ to remove it. This extension is spam.

This add-on is UTTERLY USELESS UNTIL YOU PAY THEM. It puts a HUGE WATERMARK on the video in every video created by the 'UNLICENSED' version. If it would put a transparent unobtrusive watermark throughout the entire video or they put a smaller unobtrusive watermark, I would have no problem. But they put such a huge watermark that the video is become useless to watch. I today download a tutorial video from YouTube but this video downloader made it TOTALLY USELESS. If they mention this in the 'About this extension' section in this page, I might not add it in my browser but I would not report and write this review either. I don't know if this extension / developer violated Mozilla's Terms & Conditions but if I would in their review team, I would certainly remove it from the 'Extensions' page. In an era of 'FREE SOFTWARE' movement, THIS ADD-ON IS A BLACK SPOT ON THAT MOVEMENT AND ALSO ON MOZILLA ETHICS.

I don't mind watermarks but its huge and obnoxious(I tried this on 1440p). I tried it on 720p and its still there! 720p or even 1080p resolutions and below shouldn't have it that big or at all. Also 28 usd is way too much for a product like this that may just randomly disappear. Can't recommend and uninstalling now, such as disappointment.

It's okay to ask for donations, but it's definitely NOT OK to place a GIANT QR code Watermark in every download, and ask 28 dolars to remove it. Completely unusable now.

The BIG QR code is a really bad choice to force everyone to pay almost 30 dollars. Uninstalling right now.

WATERMARK, f*** ripoff - you have to offer this for free!!!

Greedy extension, the watermark covers way too big portion of your screen, most of the "features" you can do online elsewhere for free. Also ~80pln(calculating it to my country) is just a scam.

Now everything downloaded with big and greedy watermark.
Addon has become unusable.