From TechRadar:
Firefox has been outperforming IE in every department for years, and version 3 is speedier than ever.
But tweak the right settings and you could make it faster still, more than doubling your speed in some situations, all for about five minutes work and for the cost of precisely nothing at all. Here's what you need to do.
See the List
Related Reading:
Firefox For Dummies
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Programming Firefox: Building Rich Internet Applications with XUL