Thunderbird update released today
We’ve released a new update bringing various security, stability and other improvements to Thunderbird.
Reminder: The Thunderbird 3.1.x series is no longer supported and are becoming more exposed to Internet security threats. We recommend that all Thunderbird users upgrade to the latest release as soon as possible.
To get the latest versions of Thunderbird for Windows, Mac or Linux download Thunderbird from http://mozilla.org/thunderbird or go into the About dialog to check your latest version.