I could not figured it out how to download.

Doesn't do conversions without payment and addl downloads

Ебучая хрень просит установить дополнительную программу, которая накладует водяной знак на видео при конвертации. Нахуй такой плагин?

When I launch a stream movie (1 hr 30), VDH detect the hls flux (I usually take 480 px) but stop at 51 or 63 %. If VDH is only made to download ads and youtube, many websites exist "(¬ . ¬)"

ダウンロード数が100を超えるごとに、詐欺サイトと同じ手法(おめでとうございますあなたは～)でしつこく寄付を募る

complicated i think this addon is very simple and very good just click download

https://addons.mozilla.org/en-US/firefox/addon/simpl-youtube-video-downloader/

downloaded HLS file can't play properly

Unbelievable that there is a recommended by firefox add on that doesn't work on its own and ask you to download something outside of the add on pages...
Simple put it doesn't work and ask you to download something else, suspicious at best.

SAYS IT NEEDS "COMPANION APP" TO RUN BUT DOES NOT DOWNLOAD/ACCESS THAT EXT!

Pas d'icône du module dans la barre Firefox.

Did not detect video's. Only detects it on YouTube.

This was a great and frequently used add-on on my older OSX system. On OSX Catalina however, it has not been possible to install properly. VDH does not recognize the helper app even though it is present in applications folder and I am promptded to install it again everytime I try to use the app.

Didn't work for me. I'm downloading a 1 hour video tho. I don't know if it will work for short videos, but it's simply just didn't work for my case

Нет быстрой загрузки с Vimeo. Сначала считывает, потом очень медленно загружает. Трата времени. Требует установки стороннего приложения-спутника, которое потом не удалить нормальными инструментами.

buenas noches : llevo muchos años utilizando esta aplicacion que para mi es una de las mejores y la unica que utilizo,ademas he constribuido en algo de dinero desde que vivia en españa y ahora en los estados unidos,pero llevo hace muchos meses que no he podido descargar ningun video ,espero que me contesten a este correo : sandalia21@live.com.muchas gracias.

Will only download videos as a sequence of images and constantly nags you to download a second add-on. Complete garbage