Microsoft may be on the verge of releasing the public beta version of Internet Explorer 9, but Mozilla has been busier than ever fortifying its Firefox browser with upgrades and new additions designed to keep it ahead.

The latest improvement? The JägerMonkey JavaScript engine, which promises to propel Firefox ahead when it comes to JavaScript processing.

JavaScript performance is particularly critical for calculation-intensive Web applications and browser-based games.

Though recent beta releases of Firefox 4 have revealed significant improvements in other areas--including the unique Panorama feature that promises to set the browser apart in tab management--most have still lagged behind the likes of Chrome and Opera when it came to JavaScript--until last week, that is.

More: http://www.pcworld.com/businesscenter/article/205360/

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