[compiz] Window title in bar doesn't change when application requests it

[Toby Smithe]

I'm running Compiz 0.3.1 (from gandalfn's repo), and when I change, say,
tabs in Firefox, the title in the titlebar doesn't change. It does in
the panel though, but that isn't the realm of Compiz. When running
Metacity, I don't have this problem.