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

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
Open

Certificates issues in latest update

Daria Frutskaya

After latest update I can't access any of my self-signed VMWARE servers. Installing certs/adding exceptions helped before but all i got now this dumb "unknown_issuer" error and no button for ingnore error, that makes administering of my infrastructure completely impossible since a got dozens of independet servers. Sorry guys but this is complete shit. Sure, i can use some vm with IE or edge to access my infrastructure but WTF? Make all-sec exception at least on IP range basis if nothig else.

After latest update I can't access any of my self-signed VMWARE servers. Installing certs/adding exceptions helped before but all i got now this dumb "unknown_issuer" error and no button for ingnore error, that makes administering of my infrastructure completely impossible since a got dozens of independet servers. Sorry guys but this is complete shit. Sure, i can use some vm with IE or edge to access my infrastructure but WTF? Make all-sec exception at least on IP range basis if nothig else.

All Replies (1)

That indeed sounds like complete shit. It's plenty fine to except self–signed devices, this however sounds like it's trying to act as a certificate authority that's not valid (e.g. leaf in authority role or similar confusion) — are you sure you're not misconfiguring the chains served from these devices?

(If you can't stand up reasonable TLS, have you considered turning it off and using plaintext connections instead?)

Maybe all the appliances anchor to some untrusted CA that you're supposed to add to your trust store — have you checked with VMWARE support how the chains are supposed to be used?

Or does this definitely come from a code change between Firefox versions? Can you bisect to the "good" vs. "bad" builds using mozilla.github.io/mozregression ?

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.