This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

How to install Secure Email Certificate with Thunderbird

  • 2 cavab
  • 1 has this problem
  • 2 views
  • Last reply by christ1

more options

How to configure Email Certificates for Mozilla Thunderbird. I got Certificate Manager from Comodo.com

Initially i make following steps Thunderbird has it's own certificate store and does not automatically pick up certificates from the Windows certificate store. 1) Open Thunderbird 2) Select Tools from menu 3) Select Options from drop down menu 4) In dialog box that appears select Advanced tab

I got certificate manager from https://www.comodo.com/business-security/pki-management/certificate-manager.php

How to configure Email Certificates for Mozilla Thunderbird. I got Certificate Manager from Comodo.com Initially i make following steps Thunderbird has it's own certificate store and does not automatically pick up certificates from the Windows certificate store. 1) Open Thunderbird 2) Select Tools from menu 3) Select Options from drop down menu 4) In dialog box that appears select Advanced tab I got certificate manager from https://www.comodo.com/business-security/pki-management/certificate-manager.php

All Replies (2)

more options

IIRC, Comodo deliver certificates that install in your browser. You need to export from the browser to a file and then import that file into Thunderbird.

I am not up to speed on the variety of types and format. Choose one, follow through and see if Thunderbird wants to import it. It will advise you what types of file it likes, then you can go back and export again if you chose an unsuitable type.

more options

Make sure to include the private key when exporting the cert.