Comment 7 for bug 839690

This misbehavior is still not fixed in the Ubuntu 12.04 daily from 20120126.

As mentioned before, it should be possible to push the mouse into the upper left edge and click to close a maximized window. Right now you have to focus the close button exactly.

@Paul Sladen: i guess you got it wrong, it's not that just moving the mouse to the upper left corner should release a window close, but moving it to the upper left corner AND clicking.