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

Importing my PKCS #12 certificate from Internet Explorer fails

  • 3 respostas
  • 23 have this problem
  • 17 views
  • Last reply by superheavy

more options

Whenever I try to import my client certificate to authenticate myself on certain websites from Internet explorer to Firefox, I receive an error box that has the message:

"The PKCS #12 operation failed for unknown reasons."

What a super helpful message.

I've exported the certificate from Internet explorer including the private key into a PKCS #12 file.

I've had a certificate that was successfully imported into Firefox in the past that I've tried to re-import as a test, and that also failed. What's the deal?

Whenever I try to import my client certificate to authenticate myself on certain websites from Internet explorer to Firefox, I receive an error box that has the message: "The PKCS #12 operation failed for unknown reasons." What a super helpful message. I've exported the certificate from Internet explorer including the private key into a PKCS #12 file. I've had a certificate that was successfully imported into Firefox in the past that I've tried to re-import as a test, and that also failed. What's the deal?

All Replies (3)

more options

Hi superheavy, In version 31 there was an update to the Certificate Verification in gecko. It is called mozilla::pkix

Mozilla's included CA Certificate List

more options

May also be affected by this bug https://bugzilla.mozilla.org/show_bug.cgi?id=1049435

more options

Seems to be the same issue. The process outlined in that bug report is the same I follow, even for verification. Guess it's a confirmed bug and I need to wait.