Firefox 3.0 Beta 4 users are reporting that Mozilla's new browser is dramatically faster than its predecessor – as well as faster than the latest versions of Internet Explorer, Opera and Safari.
Mozilla's chief developer said the speed increase is the result of hundreds of performance improvements designed to make the open-source browser the best at running complex Web 2.0 applications.
"We've been working on performance for a long time," said Mike Schroepfer, Mozilla's vice president of engineering. "Each beta of Firefox 3.0 got better. Beta 1 was better than Firefox 2.0, Beta 2 was better than Beta 1 and so on. Some of the big architectural changes [we've made] had begun paying off. Now we're at the point where we can turn the knob to get it to perform well."