Been using Video Downloader forever. Always been very happy, until this update and the companion app. Total garbage. WAY TOO COMPLICATED. WAY TOO MANY SETTINGS. TERRIBLE CLUMSY INTERFACE. SLOOOOOOOW then fails, every time. The worst swing in quality and ease of use with anything I can remember. So frustrated and disappointed. Possibly Mozilla's fault for making a clown show of a once wonderful browser, not sure, but certainly not ready for distribution. Now I have to waste a bunch of time trying to find a replacement. Thanks for that.

péssima extensão, antes conseguia baixar minhas video aulas da unopar, agora não consigo mais, simplesmente não baixa. deveriam resolver isso.

Incredibly slow.

Apart from the ugly interface, you have to install a so-called "companion application".
Crap.

Ничего не скачивает без установки еще какой-то неведомой фигни. В мусор такой аддон

HUGE QR Code in converted videos... Come on. No proper options for conversion quality, etc.

Requires to download and install some executable file to get the job done. Rly?

You can't download any video without installing 3rd-party software (so called "companion software").

Una basura!!! en el pasado ha funcionado bien pero ahora el mismo programa borra el video cuando ya esta a punto de terminar la descarga.
no es recomendable ya que lo mas probable es que sea un virus haciendo lo de siempre

此软件非常好用，下载网页视频如囊中取物！我想捐助，但都是英文的，全是美元。请在捐助下设置中文及人民币，并设置支付宝和微信支付，这样中国人捐助就方便了。软件作者很辛苦，需要捐助。

Tem que instalar um programa exterior.

Os vídeos baixados estão gerando uma marca d'água em formato de QR Code no canto superior esquerdo, atrapalhando a visualização do vídeo. Somente pagando pela versão premium que é possível baixar sem essa marca d'água. Existem outras extensões até melhores para baixar vídeos do Youtube sem isso. NÃO RECOMENDO MAIS O VIDEO DOWNLOADHELPER!

Требует дополнительной установки программы на компьютер, качает ОЧЕНЬ медленно с Youtube. Дополню: не работает.

In order to actually download, I am being prompted to PAY $28.50 to register a converter. Perhaps I missed it, but I did not see anything about requiring payment and registration before downloading.
Without the converter license, it appears this program won't download anything, much less convert video to MP3. Sad, it used to work on sites like youtube, but now wants me to register and pay $28.50 (US) - without telling me anything about what this "registration" keeps track of. Does it keep track of what I'm downloading? If my copy of it has to be "registered" then that license becomes a unique fingerprint that belongs to my computer, making it easy for any entity with access to these registrations to keep a list of everything.

This thing used to be excellent .. then they updated everything... now it sucks so bad.. you need the extension app for one... so another download to your computer.. it doesn't 'light up' anymore.. got too many damn choices that once you click one its stuck to that single choice until you restart your system. i can't locate, using search any of the vids i managed to download after a 90 minute download time, when another download app took 3 minutes and put it on my desktop where all my downloads go.. a once good app ruined by creators that THINK they are improving but really fixing something that was never broken.. i wish creators would STOP doing that shit and leave well enough alone!!!

Nicht so gut wier das Alte

The latest update won't let me download anything

garbage. doesn't work. devs must have autism or something.

The "Supported Sites" list is a joke. It is a list of sites where one version may have worked at one time in the past. It is not an updated, accurate, tested, or supported list of sites that work. Of course the list is impressive if any site that works even for one visit gets added then never removed when it does not work.

It is False Advertisement at best and fraud at worst. There are many sites that have been broken for 4 or more years. The response on the Google Group that is support channel for this is "something must have changed on the site" but no fixes most times. That is NOT supported. Both the Legacy XUL (6.3.3) and WebExtension (7.6.0) versions are broken on many of these sites and both version should have been fixed. Some of the sites were posted as far back as 5+ years ago; As such both versions should be fixed!

Don't advertise what you don't support, especially while asking people to PAY.

Earlier today I saw a page informing me that the addon had been updated. After a while Firefox slows to a halt and I have to close it forcefully, but when I start it again it eats 1.5+ GB of RAM and hangs. I tried again and again, closing some recently-opened tabs, but with no luck.

After starting Firefox in safe-mode and disabling this extension, I managed to get the browser operational again.
Please look into it (nothing like this has ever happened to me before with earlier versions of this addon). I am using Firefox 58.0.2 on Ubuntu.