Firefox -Xresource documentation

Running Firefox 1.5 on Solaris 10, intel platform.  Solaris 10 has a 
feature where the kernel can be partitioned into zones.  These zones are 
somewhat analogous to virtual machines.  I have the main (global) zone 
and a 2nd zone.   Although the processes are supposed to be separated in 
these zones, if I have firefox started in the main zone, firefox won't 
run in the 2nd zone, and visa versa.  I'm sending the displays to the 
same x-server running on an XP box, multi-window mode, no window 
manager.  I'm suspecting that firefox is picking up that another 
instance of firefox is running through the WM_CLASS property, detecting 
it on the X-server.  I'll test further and see if that is so. I am 
wondering where I could get a list of x-window properties for Firefox 
that could be overridden in a .Xdefaults file.  I couldn't locate any 
man pages in this installation.

Sol10_usr