I've opened a video in Full-Screen on my 2nd Display. I know it's in Full-Screen. I am watching this in Full-Screen on my 2nd Display. I do stuff on my 1st Display and i am watching a video on my 2nd Display in Full-Screen at the same time. When i switch back to 2nd Display (click with my mouse on the video which is running in Full Screen), a warning message will pop up that i am watching a video in Full-Screen. YOU DON'T SAY! I made changes in my config full-screen-api.warning.timeout = 0 full-screen-api.warning.delay = 0 full-screen-api.transition.timeout = 0 full-screen-api.transition-duration.leave = 0 full-screen-api.transition-duration.enter = 0 It's working until i leave my mouse pointer on my 1st display and click on the Full-Screen video on my 2nd display with the Full-Screen video which is running in Full-Screen on my 2nd display in Full-Screen because wanted in Full-Screen on my 2nd display. If you answer is cause of security reasons, i saw this JOKE Phishing attack example on https://feross.org/html5-fullscreen-api-attack/ So explain me why "full-screen-api.mouse-event-allow-left-button-only" is set to True? I know many People are mentally challenged but do not punish us. So tell me how can i remove this Full screen Message warning entirely. Thank you.