Thunderbird 3.1.8 update is now available

An update for Thunderbird 3.1.8 is now available for Windows, Mac, and Linux for free download from This release makes several improvements to Thunderbird’s performance, stability, and security.

Thunderbird 3.0.11 was the last security and stability update for Thunderbird 3.0.x. Thunderbird 3.0.x users will be prompted and encouraged to start using Thunderbird 3.1.

We strongly recommend that all Thunderbird users upgrade to this release. If you already have Thunderbird 3.1, you will receive an automated update notification within 24 to 48 hours. You can also manually fetch this update by selecting “Check for Updates…” from the Help menu.

For a list of changes and more information, please review the Thunderbird 3.1.8 release notes:

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