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The next version of Mozilla Firefox could be released in the last week of June, as the company moves to an accelerated release schedule.

According to a draft document, posted by Mozilla’s Rob Sayre and spotted by ConceivablyTech, a single Firefox release will take 16 weeks, a far cry from the twelve months it took the company to get Firefox 4 to release candidate stage. The final version of that browser is due for release March 22.