Did you get this fixed ??? I have been running Firefox for almost 10 years and I have found nothing faster or easier to fix. Updates is the first thing to check and mine is set to ask ( I hate auto anything because your trying to figure out what is going on until it says reboot), then I do. You only have to reboot Firefox and it puts it right back where you were before the reboot. Sometimes it changes things so I go check settings and add ons, save history, clear cache, etc. It sounds like your pages are not being saved in cache ? I run Windows XP pro and Xp pro 64 and had a triple boot with SUSE 10. I gave up Suse because it took too long to get into Windoz which had some software I needed frequently. I hope you solved this by now and I am just adding to my thread count. :<0) Mozzilla is great and has a lot of ways to fix itself with a small learning curve.