In Chrome on Windows
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Select the padlock
in the address bar.
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Select Certificate (Valid)
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Select the Details tab.
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Select Copy to File. The Certificate Export Wizard open.
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On the Export File Format window, select the Cryptographic Message Syntax Standard - PKCS #7 Certificates (.P7B) option and the Include all certificates in the certification path if possible checkbox.
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On the File to Export window, enter j5certificate.p7b in the File name box.
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Select Finish. The full certificate chain exports to the j5certificate.p7b file on your desktop.
In Firefox on Windows
-
Select the padlock
in the address bar.
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Select the chevron
to the right of Connection secure.
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Select More Information.
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Select View Certificate.
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Scroll down to the Miscellaneous section.
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Select the PEM (cert) download option.
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Save the file.
To Import the full certificate
Use the instructions detailed here: Configure HTTPS