When I switch to a Firefox window via the taskbar, that window acts as if I had clicked on the "Restore Down" button. Firefox didn't give me any problem as recently as yesterday - it's just started doing this about 15 minutes ago. I didn't change FF in any way (that I'm aware anyway). Every other program on the taskbar works just fine.
Any thoughts? EDIT:
Never mind: It was the number of open tabs for some reason. I closed some out, and it's working properly again.