Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

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
This thread was archived. Please ask a new question if you need help.
Solved Archived

Importing a CA certificate file created with OpenSSL

Firefox
Bruce Cran replied
Bruce Cran
Bruce Cran

I'm trying to import a CA file I created with OpenSSL's CA.sh utility. Firefox doesn't see it as being valid though: when I try and import cacert.pem I get the error "This is not a certificate authority certificate, so it can't be imported into the certificate authority list". I've tried removing all the text before ----BEGIN CERTIFICATE----- but it doesn't help. What am I missing?

I'm trying to import a CA file I created with OpenSSL's CA.sh utility. Firefox doesn't see it as being valid though: when I try and import cacert.pem I get the error "This is not a certificate authority certificate, so it can't be imported into the certificate authority list". I've tried removing all the text before ----BEGIN CERTIFICATE----- but it doesn't help. What am I missing?

All Replies (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor

Chosen Solution

Maybe try here: http://groups.google.com/group/mozilla.dev.tech.crypto?lnk=

Modified by cor-el

Bruce Cran
Bruce Cran Question owner

Thanks, it turned out the OpenSSL CA.sh script creates a certificate which is in the wrong format - running openssl manually worked.