It's been over a year and a half since the Mozilla Corporation shipped its last major Web browser update, Firefox 2. For cloud computing companies like Mozilla, that amount of time is an eon, and equivalent in many ways to the amount of time Microsoft took to ship Windows Vista. But one thing that hasn't changed for Firefox since the first version shipped in November 2004 is that this impressive browser is still the one to beat. Microsoft can make a lot of noise about Internet Explorer 8 and Apple can muddy the waters with its unnecessary (and dishonestly distributed) Safari browser. None of it matters. When it comes to Web browsers, there's Firefox and then there's everything else.