When there's an option to download via browser, it MIGHT work. Sometimes. Most of the time the Download Helper won't even detect any media on the website.
And the companion app is totally useless. It's so slow and unreliable, it reminds me of good old days of 56k modems.

Forces an additoonal install that accesses info on your computer and then after download tells you that there is a license fee if you want a non-watermarked version of the video. Pure scam.

System: Desktop-PC, W 7, FF.
Der Video DownloadHelper ist nicht in der Lage, unter W 7 video streams zu erkennen. Da ist er nicht alleine, auch alle anderen versuchsweise installierten Downloader versagen.
Die Benutzeroberfläche könnte klarer sein. Beenden der Aufnahme ist umständlich.
Unter W 10 funktioniert es meist, aber nur ein einziger Record am Stück ist möglich. Nach Beendigung dieses Records kann der Clip nur abgespielt werden. Um weiter aufzunehmen, muß der Rechner neu gestartet werden.
Das ist also noch sehr unbefriedigend.

Einfache Video-Dateien (mp4 etc.) können die Browser selbst auf die Festplatte speichern, für gestreamte flash Videos benötigt man aber ein Tool.

不仅需要下载合作应用才能下载，并且在下完合作应用之后，仿佛能下载视频了，但软件会给影片加载一个巨大二维码水印，需要支付25美金，才能让软件不给影片加水印
一句话评价，我是傻逼

It does not work, it is not clear why, use his personal folder, need an additional software to start, the gui is awful.

Makes you pay $28.50 to remove a watermark on the downloaded video, plus it has no sound.

Doesn't download a thing.

paid twice and still the bloody qr mark

fxxk you for the QR mark!

egy hatar szar 8 oran keresztul nyuzza a gepet aztan nezhetetlen a video

Only downloaded ads not youtube video

This used to my go to add on, however now it's changed where anything high resolution requires the download of a "companion app", which places a QR code at the top left (not a watermark, a white background code) of the video. The fee to remove this is currently USD $28.50. In my case the downloaded video can't be skipped in VLC so lucky I checked before paying for this (skipping results in the video freezing what a grey square and some artifacts)

demande l'installation d'une app supplémentaire. Ne fonctionne pas.

This Add-on could work good, but the reason we use it is to get a video downloaded from the web. It does do that, but then it puts a huge QR code on the video that takes up most of the top-left corner of the video. It turns out that the QR code will distract A LOT from the video you are trying to save. Don't use this Add-on if you want an unadulterated version of the video you are downloading.

It's not working as is and asks to setup another app... what else i know after setup?

_Download_ helper requires another app to download. Very nice. 0/10.