Lo estoy utilizando en Ubuntu mate desde ya 10 años por lo menos, y siempre me funcionó.
Benutze ich seit über 10 Jahren auf Ubuntu mate und hat immer funktioniert.
I have been using it over 10 years on ubuntu mate and it always worked.

It's a great tool. Work like a charm.

Best one!

excelente extencion muy recomendada

Esse software é perfeito. Consegue identificar, baixa e converter qualquer video. Recomendo muito!!!

Es una excelente aplicación, es increíble la gama de oportunidades que brinda

very good add-on. easy to download, specially with companion app

I've had extremely good luck with Video DownloadHelper. I'm impressed at how it's gone on working through browser and website video upgrades.

Excelente, me ha servido por años y años.

用户体验非常好！有时出来的视频选项过多，因为有广告，如何屏蔽广告，会更好

It does what it´s supposed to do and that also on sites where (many) other tools fail.

very good plugin

一个英语单词very good

отличная компактная и удобная в работе

very good plugin

This the best video download helper on Firefox, which is saying a lot because I love Firefox. Yes, there are still some bugs, but I expect to see them fixed soon. Otherwise, can't praise it enough.

Excellent plugin for college students who need study material when internet goes down in the library. Quick download to review lesson plans moments before a test or final.