I was looking for this extension, it is perfect and does what it must does, I use to exit full screen youtube videos and activate de screen saver, so de tv do not get burns.

i have been looking for a solution to get me computer to exit fullscreen for months now. If i fall asleep watching youtube in fullscreen the machine will never suspend. thank you so much idk how i didnt find this earlier!

Does exactly what it says. I use it for desktop, so that hibernation mode can kick in after falling asleep. Works fine with Enhancer for Youtube also running