Mozilla optimizes Firefox 4 for speed junkies

Firefox 4 has hit the ground running. The latest iteration of the popular browser is every speed junkie's dream, as it boasts a souped-up JavaScript engine that offers a 2x-6x performance increase.

Opera says its browser is the "fastest" of them all

Opera Software has launched version 10.50 of its web browser - which it claims is the world's "fastest" for Windows-based systems.