Make all as root!
mv /usr/lib/mozilla/plugins/libtotem-complex-plugin.so /usr/lib/mozilla/plugins/libtotem-complex-plugin.so. NOT mv /usr/lib/mozilla/plugins/libtotem-complex-plugin.xpt /usr/lib/mozilla/plugins/libtotem-complex-plugin.xp t.NOT mv /usr/lib/mozilla/plugins-wrapped/libtotem-complex-plugin.so /usr/lib/mozilla/plugins-wrapped/libtotem-co mplex-plugin.so.NOT mv /usr/lib/mozilla/plugins-wrapped/libtotem-complex-plugin.xpt /usr/lib/mozilla/plugins-wrapped/libtotem-c omplex-plugin.xpt.NOT
yum -y install compat-libstdc++-33
Install realplayer 10 rpm (not 11 and not helixplayer), i used RealPlayer-10.0.9.809-20070726.i586.rpm
Start Real Player from the Aplication Menu and follow the instructions BEVORE you start firefox.