Previously using Thunderbird with Enigmail, upgrade to the new version without paying attention to the changes to the OpenPGP integration. Now i read https://support.mozilla.org/en-US/kb/openpgp-thunderbird-howto-and-faq How is my personal key protected? At the time you import your personal key into Thunderbird, we unlock it, and protect it with a different password, that is automatically (randomly) created. The same automatic password will be used for all OpenPGP secret keys managed by Thunderbird. You should use the Thunderbird feature to set a Master Password. Without a master password, your OpenPGP keys in your profile directory are unprotected. But I do not agree and I want to regain possession of my keys, using my own password. I want to export my secret key and use it as before with my password. Could you please help me? Thanks in advanced, Regards