Hello, work almost perfectly, I still have a little part of the title that I can't hide so I can minimize the window as much as I want, but it's a lot better with the addon :)

edit : I still have a part of the title because I remove the search bar at the top with ublock, maybe an option to hide it in theater mode would be perfect ? even if you don't do it, thanks for your work

Thank you for the update. This is now working as before.

Perfect!!! Thank you for this!
And thanks for the fast update! You are the best!

Jun.28/2023
No longer working :(
I really love this extension though <3

Edit:
THANK YOU SO MUCH <3 <3 <3
(ﾉ◕ヮ◕)ﾉ*:･ﾟ✧

Works well, even in tandem with another extension that forces videos to open in theatre mode by default.

I just wish there was a way to make this extension only run when the window is maximised, or to only extend width-wise, as if I have a window that is more vertical/portrait shaped (say, half the monitor) the top and bottom third of the window will be filled with black bars, instead of having the like/dislike/share buttons, next video, comments, etc.