Two stars because while it does what it's supposed to (mostly), it has severe limitations for free users and - this is much worse - it can slow down various sites. YouTube especially.
It's gotten to the point where I keep the extension disabled until I need it.

Extension géniale !
Je recommande vivement Video DownloadHelper qui est fiable et facile à utiliser.

One of the few Firefox extensions for downloading videos that keeps up with the times, especially for keeping up with YouTube

From the best video download plugin to a useless Bloatware! There is not much to say but that they would now like money however, before letting you know about that, they let you install additional software, let you download the video and than like in my case (400+p video), watermark it with the QR code over the 70% of the video. So basically, this plug in is dead. Uninstalling it, and there is no reason to ever again install this or any other plugin from this developer, since it will most likely follow the pattern if they didn't already.

Nice APP to download sound files.
Watermark in some videos.

que extensão excelente!!! ele, fácil e transparente em tudo. deixa o código fonte disponível, e sua função de múltiplo download é de outro mundo... o melhor que eu já usei até hoje, diparado

I lov this app! I went through many and finally stumbled upon the right one. It downloads everything...yes, even YT vids.

Great addon ever done. Thank you. :)

Downloading a companion app is required. Privacy policy nagging included. If your download requires "converting" you can either pay $28.50(USD) for a "converting license" or deal with a giant QR barcode in the video. Perfect example of a once great extension gone bad.

Super Tool! Hat mir schon viel geholfen 😎

I have used VideoDownloader for many years on many Linux Distros, and have had very few failures. Usually my fault! You should use the 'co-app' which uses the latest versions of ffmpeg for better quality.

top app

Werkt vrijwel altijd probleemloos, genoeg mogelijkheden en functies. Problemen worden binnen redelijke tijd gefikst.

Fantastica extension, muy recomendada