Mozilla released Firefox 3.6.14 which is stability and security update, currently this release is available as download through Mozilla’s FTP servers. You’ll be notified later to update to latest version.
Firefox 3.6.14 released 3 months after Firefox 3.6.13, Mozilla taken this much time for this release but you shouldn’t expect any new features. This is more of bug fix release. It is recommended for all users to update to latest stable version.
Meanwhile you can expect Firefox 4 RC soon in early of this month. You can download Firefox 3.6.14 from below link.