I'm just a user, but a very satisfied one with VideoDownloadHelper. It's never disappointed me; it's not perfect, but it's close enough.

I love this extension

es perfecto para descargar video inmejorable

だいぶ前から使用しているが使える！
現状維持でいている限り使って行きたいし、おすすめ
したい。

Super Video Download Add-On! Sehr flexibel, erfasst fast alle Video Streams, nutze es regelmäßig.

Excelente para hacer respaldos de videos importantes.

Funktioniert super. Bis auf Facebook und Instagram kann das Tool so ziemlich alles runter laden, was ich möchte.

in the latest version (v.10.0.271.2) downloading from "www.ceskatelevize.cz" does not work, the addon reports "waiting video". But the older version (9.5.0.2) is functional

最高です

goood

and very reliable beenusing it for 4 years now

Is perfect to download a serie or any content and with the smart naming feature, the task of naming is very easear