Comment 17 for bug 872207

Interesting... I tend to use the unity sidebar to switch between applications, or occasionally alt-tab rather than expo.

I do get the problems when Firefox is *not* maximised, but they happen far more often when firefox *is* maximised.

I must admit I'd forgotten about this bug recently since I switched back to unity2d because it was so irritating, but I'm back in unity3d for a while to see if I can find out what's going on.