If you are importing from another Thunderbird profile, and your source folder is larger than 2 GB, please use Import from another Thunderbird installation in step 1 and then select Choose a profile folder in step 2 of the import.

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Then install Enigmail into your Thunderbird 68 profile, and execute the Enigmail setup wizard, which will help you to setup GnuPG software correctly.Thunderbird is funded by user donations. We don’t collect personal data, sell ads in your inbox, or secretly No. For each correspondent's public key that you want or need to use, Thunderbird 78 requires that you accept the key at least once.

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An alternative to Thunderbird's import wizard is to find a tool to transform your data to mbox format (.mbx), and then use Import Export Tools add-on in Thunderbird to import the mbox files. One such mbox conversion tool for Eudora is Eudora Rescue. No, there are several differences in the user interface and features offered. Thunderbird’s built-in OpenPGP support is not an exact copy of Thunderbird with Enigmail. Thunderbird wants to offer a fully integrated solution, and is no longer using GnuPG by default to avoid licensing issues. This document explains the differences:Follow the instructions on how to move a profile. This will tell Thunderbird again where your profile is stored.