I just installed 5.3 about a week ago, fairly minimal install, x86_64
platform... then upgraded to 5.4 this AM, and just installed firefox
$ sudo yum -y install firefox
.....
Installed:
firefox.i386 0:3.0.12-1.el5.centos firefox.x86_64
0:3.0.12-1.el5.centos
$ firefox
Could not find compatible GRE between version 1.9.0.12 and 1.9.0.12.
huh?