Thunderbird 1.5.0.5 provides stability and security enhancements that are part of our ongoing program to provide a safer email experience for our users. We recommend that all Thunderbird users upgrade to this latest version.

What's New in Thunderbird 1.5.0.5

Improvements to product stability. Several security fixes.

Thunderbird 1.5.0.5 - Firefox 1.5.0.5