Comment 14 for bug 358009

Easy way to reproduce the issue: Adjust the above program to grab the XI slave device of your choice, and then, in firefox, repeatedly reload a website that takes a while to load (so that an animated cursor is shown) by using a menu (e.g. the history menu or the most visited menu). Now if you place the mouse in another window, that window's cursor will be instantly overwritten by the animated cursor. The X server will crash as soon as firefox is closed.