yum update fails on unpacking of xulrunner at update.

When I try to update xulrunner the F9b version through yum I have this:

  Updating  : xulrunner                    #########################
[1/2] Error unpacking rpm package xulrunner -
1.9-0.44.cvs20080315.fc9.x86_64 error: unpacking of archive failed on
file /usr/lib64/xulrunner-1.9pre/dictionaries: cpio: rename

I have downloaded the file with wget and then tried to install it via
rpm -U, now through yum - but the result was the same.

as result I can not run firefox-3.0-0.44.cvs20080315.fc9 (F9b):

Error: Platform version '1.9b3pre' is not compatible with
minVersion >= 1.9b5pre
maxVersion <= 1.9b5pre

How to fix it? Thank You for Your time.