Comment 4 for bug 744580

I'm forwarding this from https://launchpad.net/bugs/744580:

Steps to reproduce:
Open firefox 4
Go full screen
Open a long page such as this one:- http://mail.gnome.org/archives/commits-list/2011-March/msg03805.html
Try to highlight a large chunk of text starting on screen and move the mouse down and try to go off the bottom of the screen (selecting text). Note that the browser doesn't scroll down. This is the bug.

Note, that if the window is not maximized, you will notice that auto-scrolling does eventually happen - but not until the pointer is outside of the window (which breaks completely for maximized windows)