Firefox 3.5.14 was released on October 19th and fixed several security issues and stability issues. See the Release Notes for more information.

Auto-updates should be occurring in the next 24-48 hours, otherwise users may get the latest update by going to Help menu and selecting Check For Updates. If you’re still using Firefox 3.0.x, this version is no longer supported and may contain security vulnerabilities.

IMPORTANT! This is likely the final update on the Firefox 3.5 builds.