Thunderbird version 78 and onwards now supports OpenPGP. Following are the steps that you can take to export your OpenPGP keypair from Thunderbird:
1. Go to Tools in the global menu bar, and click on OpenPGP Key Manager.
![Thunderbird OpenPGP keypair export](https://kb.mailfence.com/wp-content/uploads/2020/12/KB_mailfence_thunderbird_13.jpg)
2. Select the OpenPGP keypair that you would like to export.
![Thunderbird OpenPGP keypair export](https://kb.mailfence.com/wp-content/uploads/2020/12/KB_mailfence_thunderbird_14.jpg)
3. Go to File and click on Backup Secret Key(s) To File.
![mailfence_thunderbird_openpgp](https://kb.mailfence.com/wp-content/uploads/2020/12/KB_mailfence_thunderbird_15.jpg)
4. After setting file name and path in your device for the Thunderbird OpenPGP keypair, choose password (to protect OpenPGP secret key) and click on OK.
![mailfence_thunderbird_openpgp](https://kb.mailfence.com/wp-content/uploads/2020/12/KB_mailfence_thunderbird_16.jpg)
5. Click on Close.
![mailfence_thunderbird_openpgp](https://kb.mailfence.com/wp-content/uploads/2020/12/KB_mailfence_thunderbird_17.jpg)
Alternatively, you can open account settings and select end-to-end encryption pane.
![mailfence_thunderbird_openpgp](https://kb.mailfence.com/wp-content/uploads/2020/12/KB_mailfence_thunderbird_13.1.jpg)
For more info., check this Thunderbird OpenPGP how-to page.
You can now import the exported OpenPGP keypair in your Mailfence account.
If you are having trouble with the Thunderbird openpgp keypair export please send us a mail at suppor[at]mailfence.com