Earlier this week, Mozilla shut down offical support for the 3.6 version of Firefox. Now it looks like the web browser's creators at Mozilla are going to try to force the remaining Firefox 3.6 owners to upgrade to the newest version of the software. Computerworld.com reports that Mozilla plans to auto-upgrade Firefox 3.6 to the current Firefox 12 sometime in early May.
Mozilla has been warning Firefox 3.6 users for some time that it would be making this upgrade. Alex Keybl, Firefox's release manager, said in an email, "Users will be automatically updated unless they have specifically disabled updates. However, we strongly advise our users to upgrade from Firefox 3.6, as they will no longer receive critical security updates."
If you happen to be running Firefox 3.6 on Windows and don't want to make the change to Firefox 12, you can disable the auto-upgrade by going to the Options menu, then click on "Options" again, click on the "Updates" tab, and finally choose the "Never check for updates" option.
Firefox 3.6 was first released in January 2010. Mozilla released a number of security updates for that version of the browser in the past two years. It released its final security update for Firefox 3.6 on January 31.