The goog video-add-on

Programma is wat traag maar werkt perfect

funktioniert bestens, aber leider nicht immer

muito bom atende minhas necessidades, obrigado ao ao criador /desenvolvedor do app,

un des meilleurs , quelquefois des bugs , mais en progrès !

Excellent tool, although I would have liked the devs to have kept the ffmpeg option and not have you install their companion app. FFmpeg can handle a lot of formats, if there is some format that ffmpeg cannot handle then a companion app is good idea.

An improvement that could be looked into: The ability to download subtitles that are available with the video.

Größtenteils sehr gute und schnelle Downloads aber dennoch wird manchmal ein Download nicht richtig beendet (was ärgerlich ist)

conveniently downloading. can multitask

It's pretty rock solid. It's the most stable video downloader I've used in a dozen years on Firefox. There's some videos on Youtube that it just cannot pull for whatever reason, but aside from ongoing back and forth on that site it's the best.