This old notebook doesn't meet the minimum spec in practically all the measures, being Win95 90MHz 40MB RAM machine, which will be ten years old next year, but both firefox 9.2 & mozilla 1.7.1 appear to work, albeit rather slowly. I only use this clunker for email & low bandwidth web, neither of which are very demanding, but suspect i might have to get a new machine sometime in the next ten years
/Edit Firefox takes about 3 times longer then IE to load a page on this machine, probably because I'm running out of physical memory - but there's not much that can be done about that - looks like IE for known safe sites & Firefox for more general browsing.