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How to make Firefox trust a self-signed certificate in Mac root certificate authority?

  • 4 replies
  • 0 have this problem
  • 1 view
  • Last reply by Terry

michaelnz10
michaelnz10
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I'm a web developer working on an app running in Docker on my MacBook. Chrome, Edge and Safari trust the self-signed certificate that has been imported into the Mac's root certificate store and have no security issues, but when I try and access the web app, I'm hit with "Warning: Potential Security Risk Ahead" and the error code is MOZILLA_PKIX_ERROR_CA_CERT_USED_AS_END_ENTITY

I really miss Firefox, particularly the multi-account containers feature. What do I need to do so that Firefox will trust my certificate for my local web app?

I'm a web developer working on an app running in Docker on my MacBook. Chrome, Edge and Safari trust the self-signed certificate that has been imported into the Mac's root certificate store and have no security issues, but when I try and access the web app, I'm hit with "'''Warning: Potential Security Risk Ahead'''" and the error code is MOZILLA_PKIX_ERROR_CA_CERT_USED_AS_END_ENTITY I really miss Firefox, particularly the multi-account containers feature. What do I need to do so that Firefox will trust my certificate for my local web app?

All Replies (4)

Dropa
Dropa
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Sounds like the certificate isn't in the registered database as currently accepted certificate here.

https://support.mozilla.org/en-US/kb/setting-certificate-authorities-firefox# https://support.mozilla.org/en-US/kb/secure-website-certificate#

michaelnz10
michaelnz10 Question owner
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The certificate has CA:true set in it. Will this be a problem?

Dropa
Dropa
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You have to contact the certificate maker or authorization - Firefox forum can't fix bad certificate or invalid certificate checks.

Modified by Dropa

Terry
Terry
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You could try removing cert9.db with Firefox closed.

https://support.mozilla.org/en-US/questions/1419999 https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data#w_finding-your-profile-without-opening-firefox