Well, I did a removal of various self-installed firefox .. and also remove the exclusion of firefox package from /etc/yum.conf [main] cachedir=/var/cache/yum keepcache=0 debuglevel=2 logfile=/var/log/yum.log distroverpkg=redhat-release tolerant=1 exactarch=1 obsoletes=1 gpgcheck=1 plugins=1 #exclude=opera,openoffice*,firefox,xulrunner exclude=opera,openoffice* # Note: yum-RHN-plugin doesn’t honor this. metadata_expire=1h installonly_limit = 5 # PUT YOUR REPOS HERE OR IN separate files named file.repo # […]