Garbage extension. Makes you install an app, ads huge watermark and makes you pay for something that you can do for free.
This extension should be deleted from the store.

昔お世話になったが、今は単体では使えないので使っていません

Не работает

New company policy: "We'll put a big QR code over the video if you don't pay for a license." - There are plenty of other ways to download videos then.

Warning! Will place a huge watermark on top of the downloaded videos unless you pay.

Awesome downloader if you like watermarks. Probably great if you pay $$$

Типичная шаровара. Не ведитесь

It used to be good, then for some reason their companion app added a watermark which takes up almost 1/4 of the image from the lower left corner.

Adds giant and super ugly watermark, that covers almost third of the video size.

They also spy your download history.
Avoid this. I uninstalled it.

Adds a watermark that covers a third of the screen. This never used to occur.

They also state they do not track despite asking:

Do you want Video DownloadHelper to remember your download history?

Avoid this.

Need to pay for license to download unwatermarked videos.

This shit sculpts its stinking watermark on a third of the screen. Deleted it.

It Is Failing to download a Youtube videos for me today.

You want to add a watermark saying that you did not pay for a license? Ok, but I won't use an extension that adds a QR that steals a quarter of a video, good luck, you will need it.

You must pay for downloading mp4 file!

It puts a massive QR code on the video. What's the point? Waste of time app.

Complete B.S. Now! Was great, but now you have to pay or everything is watermarked. This extension is useless without paying. Deleted!

Not free!

Used to be a great extension for 10+ years. Now completely unusable after recent unannounced change to stamp giant watermark onto all videos if you don't buy an expensive pro license.

It wants to install additional unknown software. So removed it 5 mins after install.

worthless trash started adding qr codes in video downloads, what???

This no longer has any free utility. You must pay to download audio or video.