Forum communautaire Firefox pour Android

If I have a YouTube video open in another tab, when I switch back to that tab my screen will automatically become landscape mode and will not rotate to portrait mode. The video doesn't become fullscreen; it doesn't matter whether the video is playing or not. This happens even with auto-rotate turned off. The only way to get the tab back to portrait mode is to make the video fullscreen and then minimize it, after which auto-rotate works correctly again.

Firefox on android gets stuck in landscape mode after playing a video on YouTube. Usually this happens after exiting fullscreen but can also happen when switching to another app and back to firefox. Going in and out of fullscreen again usually fixes it, but you can't do that on shorts and it's very annoying. I tried to use a fix posted 7 years ago of going to about:config (which I had to go to separate settings and enable to even get there) and toggling media.videocontrols.lock-video-orientation, but that setting doesn't appear to exist anymore. Is there anything I can do to fix this?