xulrunner update problem

[David Mack]

I had to remove xulrunner and dependencies (including
system-config-date) to get the latest version of firefox to install.
Upon trying to re-install system-config-date...

========================================================================
=====
 Package                 Arch       Version          Repository
Size 
========================================================================
=====
Installing:
 system-config-date      noarch     1.9.17-1.fc9     development
1.2 M
Installing for dependencies:
 xulrunner               i386       1.9-0.beta1.3.fc9  development
9.7 M
 yelp                    i386       2.20.0-8.fc9     development
722 k

Transaction Summary
========================================================================
=====
Install      3 Package(s)         
Update       0 Package(s)         
Remove       0 Package(s)         

Total download size: 12 M
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test


Transaction Check Error:
  file /etc/gre.d/gre.conf from install of
xulrunner-1.9-0.beta1.3.fc9.i386 conflicts with file from package
firefox-2.0.0.10-1.fc9.i386

Dave