It's probably possible on an OS level but I'm guessing it's an expensive task. If you're playing a 3d game that's resource intensive and you want to check 'ever

It's probably possible on an OS level but I'm guessing it's an expensive task. If you're playing a 3d game that's resource intensive and you want to check 'every' frame you'll surely take a performance hit. I think disabling gif/movies/etc from playing automatically would be almost as effective and not as much overhead (toggle option of course)