Looking for an extension like TabCinema

Hello all, I’m searching for an extension like [TabCinema](https://chrome.google.com/webstore/detail/fullscreen-anything/olcfgpmjldkkjdclidhcbonieibfhhdh) (similar to this on google chrome), basically, it make a video frame to fit inside a tab/window instead of the usual full-screen or F11. It used to work on firefox, but since the launch of WebExtensions, it has been discontinued like many.I also tried script for … Read more