does not work in ESR. u figure out ureself what ESR means. ADDON does work in ffx 84 though. learning how to operate it is quite a chore. VLC is most famous for its crap usability and poor ergonomics. They are in fact proud of that.

Need settings for video quality. Default open in low quality.

This extension has a LOT of potential. Once you set everything up (take a few minutes, but its completely fine) its pretty easy to use, jsut launch VLC and click on the icon.
It is missing a few features, the biggest one for me being a quality selector of some kind, but I can definitely pardon it for the simple fact that its in beta.
If you have good internet, I can fully recommend it, its fast, its simple, its easy and it does its purpose very well. I am personally gonna keep it, but only start using it when some more features are added, adios!