Hello, I just updated Firefox to version 136 on my MacBook Pro. I was playing a 4k YouTube video, and at 16 minutes and 10 seconds in the video froze. If I moved the cursor the pause button and all of that would come up at the bottom, but when I clicked on the option to exit full screen it did not respond. I pressed the escape button and that did get me out of full screen, but the video window did not apply the right formatting. I'll include a screenshot so that you can see what I am talking about. After exiting full screen, if you look at the bottom of the video window, the option to go back to full screen is cut off. Closing Firefox and relaunching it appears to have things working again, at least for now. I thought it would be best to report this just in case it isn't an isolated glitch.