Mozilla Outfoxing Microsoft (The Motley Fool) The Motley Fool - Firefox is catching fire -- pardon the pun -- and for good reason. Web surfers looking for a reliable alternative to Microsoft's (Nasdaq: MSFT - News) Internet Explorer have been busy over the last month downloading the new version of the Web browser. The Mozilla Foundation, a network of programmers jointly developing open-source technology, reports more than 8 million people have downloaded the program since early November.