chattr +a -V

(Writing this post over an ssh connection to devmike.com from the laptop.) Firefox (v1.0.4 on the laptop and on my desktop) will crash. It might be rarely, but it does crash from time to time. I have some extensions installed, and one which can save what I've visited is Enhanced History Manager

It has more options and, a minor benefit is that you can add a button on your toolbar to open the manager. Useful.

I did have to download Firefox v1.0.4 to permit extension installations.