It works!

Extrêmement utile pour ajouter des sous-titres à un vidéo consulté en ligne (sur Onedrive par exemple).

amazing addon, helped me a lot with subtitles for old movies, I don't have to download movies now

funciona no YouTube, very good

Wow!
It works! This is in contrast to various other subtitle add-ons I've been struggling with.
It is a simple design that functions well in my experience.
Thank you!!
(Mainly used on Amazon video)

Doesn't work on YouTube unfortunately.
I take that back, does work on YouTube too.