Importing and exporting your Email or Personal Authentication certificate using Mozilla Firefox

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This document explains how you can use Mozilla Firefox to import or export an existing CPAC/Email certificate.

Exporting your Certificate from Mozilla Firefox

Click the hamburger/'Open Menu' button at the top-right corner then select 'Options'
Select 'Advanced' from the menu on the left
On the 'Certificates' tab, click the 'View Certificates' button
On the 'Your Certificates' tab (of the 'Certificate Manager' dialog box), select the certificate you wish to back up and click 'Backup'
Your certificate will be exported to a PKCS12 file. Please create a name for this file and specify where you want to save it.
Next, create a password to protect the PKCS12. This password will be requested should you later import the certificate into another browser/mail client or device.
Click 'OK' to finalize and that's it! You have successfully exported your Comodo Personal Authentication certificate.

Importing your Certificate into Firefox:

Click the hamburger/'Open Menu' button at the top-right corner then select 'Options'
Select 'Advanced' from the menu on the left

Optional - Leave enabled 'Ask me every time' under 'When a server requests my personal certificate'.

Doing so alerts you to the fact that a server has requested identity confirmation and enables you to select your Comodo Personal Authentication Certificate.
On the 'Certificates' tab, click the 'View Certificates' button
On the 'Your Certificates' tab (of the 'Certificate Manager' dialog box), select the certificate you wish to back up and click 'Import'
Navigate to the location of your PKCS12 certificate file, select your Comodo Personal Authentication Certificate and click 'Open'.
To complete the import process, you are required to enter the password you set up while exporting or backing up your certificate. Enter the password and click OK.