Mozilla developers wrote in an online forum that Firefox 4 should be available for download March 22. The latest version of Mozilla’s browser has been in beta testing since June 2010 and the company put out a release candidate last week. Barring any major bugs between now and the 22nd, Mozilla will put out the official version next week.

In a developer’s forum, Mozilla’s Damon Sicore wrote: “March 22nd is the day we would ship. ... If at any time we discover issues that would block final release, we would issue an RC2 as soon as possible, reset the ship date, and communicate to everyone. “

Firefox will be the third major browser to launch a new version this month. On Tuesday, Microsoft’s Internet Explorer 9 went out to general consumers. Google’s Chrome browser launched a 10th incarnation March 8 and got a flatter, matte logo today.

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