firefox keeps crashing

[greg <gregnix20@xxxxxxxxx>]

 I have the newest firefox installed with the following extensions 
installed:

1) download them all
2) bluefrog
3) bugmenot
4) trashmail.net
5) fasterfox
6) forcastfox
7) riteoftounge
8) colorful tabs
9) xultris
10) password maker 1.5

When I select a group of bookmarks to open in tabs for example,  cnn, bbc, 
or my own set of tabs, firefox tends to crash and i have to restart the 
program and start over. it doesn't happen every time, but seems to happen 
often.  These extensions have been updated.  does anyone know of any known 
conflict with these extensions that would cause this?  and if so, is there 
a fix or work around?  I am running windows xp pro with all patches and 
updates in place.

Thanks 

Greg