Firefox 8 64-bit (right) Click either image to zoom in slightly

The following results are from the ExtremeTech test rig which houses an Intel i7 930 with 6GB of RAM and an Nvidia GTX 460.įirefox 8 32-bit (left) vs.

Just how fast is the 64-bit version of Firefox 8? About 10% faster than the 32-bit version - but instead of taking our word for it, take a look at the comparative results from the Peacekeeper suite (Opens in a new window), the most comprehensive browser benchmark. In other words, there's very little reason to not use Firefox 8 圆4 you can download a copy from the Nightly site (Opens in a new window) (it won't interfere with your stable install), grab Flash 11 beta for Windows 圆4 (Opens in a new window) and Java 6 for Windows 圆4 (Opens in a new window), and start surfing. Even more importantly, though, there are now stable 64-bit browser plug-ins for Flash and Java. Today, however, Firefox 8 64-bit is stable and it's fast it's really, really fast. When I first took 64-bit Firefox for a workout last year, it wasn't the best of experiences: it crashed, JavaScript performance was abysmal, and it was generally sub-par compared to the stable, 32-bit branch. You can grab a 64-bit build of the current Nightly (Opens in a new window), and it works very well, but there's no word of when Windows 圆4 will be officially supported.

Update : It seems the 64-bit build of Firefox 8 for Windows never came to fruition - and we're not sure why. There are now five slaves dedicated to building Firefox for Windows 圆4, which means that from Firefox 8 and onwards, you'll be able to pick up 64-bit builds that are functionally identical to its 32-bit cousins but operating in native 64-bit CPU and memory space. Over the last couple of weeks, Mozilla has finally stepped up its 64-bit testing process.

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