"We strongly recommend that all Firefox 3.0.x users upgrade to this latest release," Mozilla said on its developer blog. "If you already have Firefox 3, you will receive an automated update notification within 24 to 48 hours. This update can also be applied manually by selecting 'Check for Updates...' from the Help menu."
Version 3.0.12 fixes five critical problems and one high-level security problem, according to the Mozilla security advisory site.
And Mozilla is pushing the new browser hard. Security and stability fixes for the 3.0.x series will end in January 2010.
This article was originally posted on CNET News.