[CentOS] My linux keeps logging me off when I run Firefox (how to debug)?

[Rock]

On Tue, 16 Apr 2013 00:21:33 +0000, Rock wrote:

>  Is there a Desktop crash log somewhere?

Given that the advice was that X was crashing due to Nvidia 
driver mismatch problems after my "yum update", I took a look
at the ~/.xsession-errors log file before and after the crash.

And, you seem to be correct: The xsession is crashing when
using Firefox (but not Chrome):

Window manager warning: Fatal IO error 11 (Resource temporarily unavailable) on display ':0'.
nautilus: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
polkit-gnome-authentication-agent-1: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
nm-applet: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
rhythmbox: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
gpk-update-icon: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
pan: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.
gnome-screensaver: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
gdu-notification-daemon: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
gnome-terminal: Fatal IO error 104 (Connection reset by peer) on X server :0.0.
[14555:14555:0415/175602:ERROR:chrome_browser_main_x11.cc(62)] X IO error received (X server probably went away)