Microsoft used to own the browser world but they have seen better products take market share,from almost 100% down to 60%. Pretty sad for a browser that comes bundled with the operating system. Just shows you that people really had a desire to leave internet explorer in search of a better option. Maybe Microsoft will be able to regain some customers with its Internet Explorer 9 beta announcement. I would have no problem switching back if IE didn't totally eat up all of my system memory and make my computer deathly slow at the end of a long work day. Firefox doesn't do that to me.
IE9 is supposed to be faster than IE8 and will also be more compliant with emerging HTML5, CSS3 and SVG2 standards. Long story short, Microsoft is hoping IE9 will be the only browser to take advantage of full hardware acceleration whenever you surf the Internet. Mozilla already disputes this claim.