Please try the Thunderbird 3.1.5 RC build from the ubuntu-mozilla-security PPA (https://edge.launchpad.net/~ubuntu-mozilla-security/+archive/ppa). It has the same patch in.
Please try the Thunderbird 3.1.5 RC build from the ubuntu- mozilla- security PPA (https:/ /edge.launchpad .net/~ubuntu- mozilla- security/ +archive/ ppa). It has the same patch in.