Dedoimedo posted a comparison review between Firefox 4 and Internet Explorer 9
Fanboys worldwide, unite! I am gonna kick up the fire, ready your scythes. For I have written a long, objective comparison between Firefox 4 beta and Internet Explorer 9 beta, including categories like availability, portability, installation, looks, speed, responsiveness, memory usage, hardware acceleration, W3C compliance, Acid3 test, HTML5, Flash, addons, tab management, search, and more. Do not read if you love your browser more than your mother.Firefox 4 vs. Internet Explorer 9 - Head on!