Description of problem: Errata http://rhn.redhat.com/errata/RHSA-2010-0501.html lists xulrunner-1.9.2.4-10 in the documentation. The package installed is xulrunner-1.9.2.4-9 which appears to be the correct one.
Please see the comment above the file: File outdated by: RHSA-2010:0556