Latest Iceweasel 14 user agents:

User Agent Platform Device
Mozilla/5.0 (X11; Linux x86_64; rv:14.0) Gecko/20100101 Firefox/14.0.1 Iceweasel/14.0.1 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux x86_64; rv:14.0) Gecko/20100101 Firefox/14.0 Iceweasel/14.0 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20100101 Debian Iceweasel/14.0 Debian Unknown
Mozilla/5.0 (X11; Linux i686; rv:14.0) Gecko/20100101 Firefox/14.0 Iceweasel/14.0 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux i686; rv:14.0) Gecko/20100101 Firefox/14.0.1 Iceweasel/14.0.1 GNU/Linux Unknown