Firefox/facebook broke

[Robert Wuest]

After I updated yesterday (about 500 M worth), 2 things have broken:

When using facebook with firefox, several of the icon/button thingies at 
the bottom of the window (facebook icons, not firefox) no longer contain 
a visible icon.  If I mouse over where they should be, the label 
(Photos, Groups, Events, etc.) does appear above them and the button 
space changes color.  Clicking in them does function correctly.  That's 
on the lower left side of the facebook page.

On the right side, there is are chat and notifications "buttons".  The 
chat button is completely non-functional and the notification button 
will only take me to the full notifications page, not to the pop-up that 
used to be there (which had a button to take you to the full page).  One 
other thing: The chat button is showing me Offline, but I can open 
facebook with konquerer and go online then close konquerer and refresh 
the page in firefox and it shows me online with the number of friends 
that are also online, but I still cannot access the chat popup to either 
chat or go offline (and of course reversing the process using konquerer 
works to go offline).

I have keepcache=1 in my yum.conf file, so I was able to revert the 
firefox/xulrunner/yelp updates back to the previous (functioning) 
version with 'sudo rpm -U --oldpackage 
xulrunner-1.9.1.2-1.fc11.x86_64.rpm 
xulrunner-devel-1.9.1.2-1.fc11.x86_64.rpm yelp-2.26.0-6.fc11.x86_64.rpm' 
to no avail.  So it's not firefox.  And I haven't a clue what else could 
be causing it.  Anyone got any hints?

Robert