Thunderbird 24.3.0 to be released in February

Thunderbird 24.3.0 was originally scheduled for release on Tuesday, January 21st, 2014. However, due to Mozilla shutting down their operations until January 6th, they have opted to push the release back two weeks to ensure the build quality is not sacrificed. The new release date for Thunderbird 24.3.0 (both desktop and esr) is now Tuesday February 4th, 2014.

via Firefox Future Releases