Thunderbird 1.5.0.10 Security and Stability Update
As part of Mozilla Corporation’s ongoing stability and security update process, Thunderbird 1.5.0.10 is now available for Windows, Mac, and Linux for free download from getthunderbird.com.
Due to the security fixes, we strongly recommend that all Thunderbird users upgrade to this latest release.
If you already have Thunderbird 1.5.0.x, you will receive an automated update notification within 24 to 48 hours. This update can also be applied manually by selecting “Check for Updates…” from the Help menu starting later today.
For a list of changes and more information, please review the Thunderbird 1.5.0.10 Release Notes.