Mozilla today released the latest beta version of Firefox 3.5, which was formerly known as Firefox 3.1. Beta 4 is now available in over 70 different languages, and, compared to the stable version, features improved privacy controls, and support for HTML5 and elements. Since the release of the last beta version, Mozilla has also tweaked its TraceMonkey JavaScript engine, which now runs a bit faster, and the Firefox team has added geolocation features... 

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