I use XP PRO and I do not have SP2. I've had a problem with the images for census and the Hamburg images.
My problem is that I get the message that Firefox needs to shut down when I have clicked the Back button on my mouse. Sometimes it happened on 1st click and other times I would have to click Back several times for Firefox to crash. I can't remember if clicking the Back arrow in the upper left causes Firefox to close. I don't think if I clicked the down arrow for the list of already viewed pages and pick a page (say 8 back) and click on it that it crashed on me.
The only crash I've had is when going Back.