Comment 3 for bug 429819

FYI, I bought a new computer recently and it experiences this bug in the exact same situations with the Quartus II program that I mentioned, except that Firefox crashes as described in bug 372103 instead of hanging the desktop as described here, so evidently the bugs have the same root cause. But for some reason on my old computer the bug manifested as a hang of the desktop rather than a browser crash.

I don't consider this a dupe though, because the ability for a program to hang the desktop is a bug in and of itself.