Mozilla Messaging has released an update for Thunderbird 3.1 on March 1st. This release addressed:
- Several fixes to improve performance, stability and security, see the Security Advisory.
- Several fixes to improve handling of large folder files stored locally.
For more information and to download see the Thunderbird 3.1.8 Release Notes.
IMPORTANT! Support for Thunderbird 3.0 has ended! Upgrade to Thunderbird 3.1