UPDATE: Thanks to Toni, we got specific details about Firefox 13.0.1 on Ubuntu, including fixes for several security issues: http://www.ubuntu.com/usn/usn-1463-3/. When I published the original ISC post, the Ubuntu Firefox 13.0.1 package was not available yet, although the official one for Windows obviously was (even a few days before). Interesting...

A new version of Firefox, 13.0.1, was released today. Although the official release notes say that various security issues have been fixed in this version, by looking at the official security advisories for Firefox I couldn't find any new advisories specifically for 13.0.1, as all them (from MFSA 2012-34 to 2012-40) were fixed in version 13.0 (although unfortunately, the official release notes for Firefox 13.0 do not include the security fixes reference). We already announced these a couple of weeks ago.

In any case, be sure you get the update (via the automatic method or manually) and that it is properly applied (it includes a few functional fixes).

If you have more specific security details regarding 13.0.1 (if any), please share them through our contact page.

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Raul Siles
Founder and Senior Security Analyst with Taddong
www.taddong.com