Speed Testing the Latest Web Browsers

Though it’s far from a scientific study, and your mileage will certainly vary on different systems, lifehacker.com speed tests some browsers. With Opera and Firefox especially, running a like-new version is somewhat of a cheat—almost any enthusiast is going to have a must-have extensions, features, and add-ons running, which throw off the speed and memory scales.
Test 1: Startup time—Winner: Opera!
Test 2: JavaScript & CSS—Winner: Safari!
Test 3: Memory use—Winner: Firefox 3!