Since the last Firefox update (I'm now using Firefox 113.0.1 64bit on Windows 11) when I play a video on Twitter, it plays with the right colors until I fullscreen it. When I fullscreen it, the video becomes darker and the colors are wrong. * The same happens to youtube videos (both fullscreen or normal size): the colors are not right and they looks darker. * The same problem happens using both my laptop's internal monitor and the external monitor. * I tried to reinstall Firefox but it didn't fix it. * I also tried to take a screenshot of the "wrong colors" videos using the Windows screenshot tool but the output image is displayed with the right colors and not with the darker ones. * Using Chrome the colors are correct and I never had this problem before the last Firefox update.