This add-ons is not free, will show a huge barcode on the video unless you pay.
say this on the start instead of wasting my time installing the add-on then installing the companion app to find a giant barcode that cover 30% of the video

heres a QR CODE that is GIANT on the downloaded video! Woaw!

Qr-code covers a vast part of the video, making this add-on useless

Now requires an external executable to be run on your PC to use. It's been flagged as a Trojan. Don't use this extension anymore.

water mark...

Been using this for years now until today. There is now a huge qr code plastered onto downloaded videos.

Been a nice ride, but now is worthless.

WARNING VIRUS AND QR CODE PAYMENT RANSOM

The downloader does not work on YouTube but says you need the companion app, fair enough so I download it.

It then adds a MASSIVE QR Code which you can only remove by PAYING for a license, this is a breach of Mozilla rules.

So I tested the companion download on VirusTotal plus some other sites.

The result says two sites found malware called W32.AIDetectMalware
VBA32 & TrojanDownloader.Private

So I test elsewhere and get this description for above

f-secure.com/v-descs/trojan-downloader.shtml#

this type of trojan secretly downloads malicious files from a remote server, then installs and executes the files.

virustotal.com/gui/file/e1af498f95432a4f2f666a8cbec7bd6ab9deb4d1695c6e7cde7acb9bd408e600

No way I am risking this, there are other video download apps

Unusable because of the qr code. Disappointed.

This extension has been broken forever. It can't download anything at all.

Place a massive qr code in the corner. ruining any video taken unless given money not worth it also cant dowload audia without giving em money

won't download. says it's corrupt

A huge QR code water mark on the video if you don't pay them. Extremely high performance impact due to adding that QR code. WORST ADD-ON !!!

Испортились. Теперь встраивают QR-код поверх видео при сохранении (перекодировании). На данный момент перешел на 4К Video Downloader, других альтернатив пока не искал.

wanna have fun with it just pay them

The app will promt you for a companion app download. And after you have downloaded a video it will then inform you that a large QR code has been overlayed. If you would like that QR code removed then its going to cost you. None of this information if front presented.

It water marks videos unless you pay them

watermark