To me, Firefox is the best browser out there. It's much faster than Internet Explorer, that's one very solid fact. Usually, it takes 3 seconds to open a tab in Internet Explorer 7, in Firefox it takes less than a second. Download speeds for me is the same in IE7 and Firefox, so no differentiation there. Because Firefox is open source, there are unique styles for it as well as plug-ins, rather not for IE7, and less for Opera. At the end of the day, Firefox suits me, and because I need quite a lot of plug-ins, I cannot afford to change to different Web browsers, for a simple fact when making Web templates, or general surfing.