R
Richard Fangnail
Richard, many people have offered concrete suggestions. They (including
me) have asked you questions that you haven't answered.
You really need to run Firefox in Safe Mode for an *extended period of
time*. In case you need help, see this page:
http://www.insight-com.com/help-bb-7199.htm
Come back in 24 hours and let us know if it still crashes or not. The
only way to solve your problem is to use the scientific method. We need
data.
In the event you just want to give up on Firefox, there are other
browsers (including IE, of course) available. Another very good one is
Opera:
http://www.opera.com/
If you get the same crashes in Opera, you have some sort of system
problem or one of your other programs is causing a conflict. If not,
uninstall Firefox and be done with it!
P.S., Do you empty your browser cache? If not, DO SO!
Update - I started running FF with no plugins and even no Javascript,
but it still crashed.