Reviews - Pro-Clockers! PC Reviews One MegaHertz At A Time

However, Mozilla does trail Internet Explorer 8 in one respect -- Mozilla has not offered an official 64-bit version of its software.  One developer is working to catch Mozilla up, though.  Since 2008 a contributor who goes by the screen name Makoto has ported Firefox 3.0, and now 3.5 to 64-bit editions.  He has announced recently that he plans to contribute the 64-bit versions for 3.6 and up, which may mean that Firefox will at last get an official 64-bit build.

Advantages of the transition to 64-bit include faster speeds on pages using encryption, fast-call type function calls, and more efficient memory mapping of large files.  Initial benchmarks from the 64-bit build show impressive gains in certain applications. DailyTech