Windows move to top left of screen

[manatarms]

Why is it that occasionally my browser windows will be moved to the top left of the screen without me doing anything? To move the windows back out of the top left corner of the screen I have to move the window out of frame to get it back to where I want. It's really annoying can anyone explain, and how can I stop it from happening? Oh and I am using firefox and this happens in tiger and leopard.

 

[tobefirst ⚽️]

Are you sure it's snapping to the upper left of the screen? My firefox windows sometimes snap to *each other,* no matter where they are placed on the desktop. It's a bug that the Mozilla people have yet to fix, and probably my biggest annoyance with Firefox.