Bug when playing games in full screen - overlay of the color of selection for instance blue

[firefoxuser25]

Very recently Firefox started behaving weirdly when playing any game in fullscreen, webgl games I suppose, in full screen. On Facebook, on any website. When switching to fullscreen there is overlay, it behaves and looks like when you select something on a website, picture, text. Only when playing game you cannot select anything and also neither unselect it. Very annoying, hurts the viewing, hurts eyes. Please fix it. Thanks

[lucasdevon]

I’ve noticed that fullscreen gaming issues can be pretty frustrating, especially when an unexpected color overlay appears and affects the display. Hopefully this gets addressed soon, as smoother fullscreen behavior makes a big difference for gamers. I’ve also been looking into gaming-related tools like key system delta