Thunderbird fails to import a PKCS#12/PFX S/MIME certificate

I’m getting this error when trying to use the certificates. I’ve double checked and none of the details are wrong. Is there a way to solve this?
Screenshot_20240902_211801

How did you prove the certificate is correct?

Importing pfx (PKCS12) certificate fails on Fedora but succeeds on Windows 11 - #5 by ocosta

It worked! Thank you

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Its because I used the same certificate(.pfx) and passoword on Debian 12 and Windows 11 and they worked without issue.

@vgaetera sorry to bother you again, but after importing my certificate and setting it to digitally sign every email I send, its showing me this error, can you please help me with this?


I know that I imported the certificate properly because when I open the certificate, here are its details in thunderbird.

Continues at Thunderbird failing to find the signing certificate specified in my Mail & Newsgroup Account Settings