I just upgraded to the latest version of Mozilla (of the Firebired variety) and I can already see the improvments of my last version. I would recommend for anyone running anything else to get on the Mozilla bandwagon. Mozilla is not as plagued with security holes and crashes like Internet Explorer. Best of all it's free and always getting improved by the open source community. A big plus for many other individuals may be the built-in pop-up blocker that works by blocking any scripts to pop-up windows.