Andi, are you absolutely sure that this appeared between .29 and .30 for 
you?

I only noticed it after the .30 update at least.

And if so, is there any chance you could try bisecting it?

Ok.

(*) have been on virtual desktop where firefox was running, switched to 
console using Ctrl-Alt-F1, and switched back to X using F7. Firefox then 
popped up some dialog about configuring some feature that is triggered by 
pressing F7/AltF7, or whatever. Is that what you are seeing?

Yes, I typically see it with the help screen. It also happens with
other applications, not just firefox.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only.