Every time I play a game(from Steam), during the first five minutes,the game screen always goes back to desktop. The game itself doesn't stop running and I can always play the game again by clicking the bottom left of the screen but this is getting frequent that I suspect something is up. It only started after this message came up(supposedly) from Mozilla Firefox which asked if "I wanted to allow this app to make changes to my device." I clicked yes and thought nothing of it until I remembered that the Firefox logo was completely blue instead of blue and orange. So that could have been a trick by someone if they intended to hack. I attached a pic of the message here to show you what the message looked like. I got it while searching for online images so the difference is that the pic I have here shows blue and orange while the original one I saw was only completely blue. Ever since then, my gameplay is interrupted by returning to the desktop for the past two weeks. But my Windows Defender has also not detected any malware.