Choose the specific sub-version (e.g., 78.14.0 was the final stable build of this series).
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Navigate to the official Mozilla release server. Choose the specific sub-version (e
Previously requiring the Enigmail add-on, end-to-end encryption became a native feature. If you must use version 78, ensure you
If you must use version 78, ensure you are running a robust antivirus and avoid opening suspicious attachments. For most users, upgrading to the latest version of Thunderbird is the safest path to ensure modern web standards and security protocols are met. If you'd like, I can help you: Find the for a specific sub-version Troubleshoot profile migration issues during a downgrade
Download the .exe file and follow the on-screen prompts.
Better visibility for events and improved task management. How to Download Thunderbird 78 64-bit