Click Select next to the Digital Signing field. Click the Security tab on the left-hand side.On Thunderbird's main menu go to Options > Account Settings.

Click OK to exit the Certificate Manager.

Browse to your certificate and enter the PFX certificate password to import it to Thunderbird.

On the Certificate Manager screen click the Your Certificates tab.

Click on Advanced > Certificates > View Certificates.

Click on the menu in the upper right-hand corner. Or, you can check the step by step guidelines below. You can watch the video below for a tutorial. Locations of the options presented below may vary in other operating systems.

Note: These instructions are based on a Windows Operating System. If you are not sure if you have a copy of your certificate please follow the instructions to locate and install your certificate. Install Certificate - Mozilla Thunderbird Install Certificate - Mozilla Thunderbird Installing Your PersonalSign Certificate in Mozilla ThunderbirdĪrticle Purpose: This article provides step-by-step instructions for installing your PersonalSign Certificate in Mozilla Thunderbird. If this is not the solution you are looking for, please search for your solution in the search bar above.īefore following these instructions, please make sure that you have a copy of your PersonalSign certificate in a PFX (PKCS#12) format.

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