I'm out of ideas on how to fix this, every now and then my Firefox browser gets a random white border around it. Windows 11, no compatibility mode active for the application.
When I maximize and minimize the window it goes away for a while.
One possible hint: This has started to show up after adding a third display (a 4K TV) to my setup. Even if the TV is fully off. But the TV is the only display which has a different resolution scaling active (all other displays are at 100%).
Windows has never been able to handle multi-display setups that well especially when the monitors are wildly different.
As for fixing it, maybe try asking !windows11@lemmy.world
Hi there! Looks like you linked to a Lemmy community using a URL instead of its name, which doesn't work well for people on different instances. Try fixing it like this: !windows11@lemmy.world