Firefox window is not lined up properly
Since a while i noticed that the aspect ratio of firefox is off. There is a little line on the bottom and left side of the window. It's only a few pixels wide, but enough for my mouse to not recognize it as a window. It's slowly been driving me mad, since i can't click on the far left side of the screen and my cursor stays there when i watch a video fullscreen.
Anyone have any solutions for this?
Thanks in advance!