Description of problem:
Rawhide's Firefox does not properly own all its directories:

%{mozappdir}/modules/distribution.js

is listed explicitly, but %{mozappdir}/modules is not owned by any package. 
When Firefox was recently updated to a 3.0b4pre (breaking because it requires a 
xulrunner that does not exist), some dangling directories (%{mozappdir} and
 %{mozappdir}/modules) were left behind.

Version-Release number of selected component (if applicable):
firefox-3.0-0.beta3.22.nightly20080215.fc9