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"Your connection is not secure" when delete all certificates in Certificate Manager

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  • 7 have this problem
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  • Last reply by smilefg

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I deleted all certificates in the Server tab on the Certificate Manager. after that i cant open any https site. how i can import basic certs or other possible ways to resolve my problem?

firefox 56 on ubuntu 16.04.

reinstallation do not solve.

I deleted all certificates in the Server tab on the Certificate Manager. after that i cant open any https site. how i can import basic certs or other possible ways to resolve my problem? firefox 56 on ubuntu 16.04. reinstallation do not solve.
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As far as I can tell, that is the real certificate. I wonder if your cert8.db file has become corrupted. Could you try the steps under "Corrupted certificate store" in this article if you haven't already: What do the security warning codes mean?

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What about your Authorities tab. Do you still have the "Built-in Object Token" listings there?

Could you review these articles:

Does that help identify a culprit?

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Yes, in Authorities tab certs are an available with "Built-in Object Token".

if i add exception in Advanced menu - this solve for added site. but not all sites have this option. for example, i cant add github.com

and before deletion all sites do not need to add exception.

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I do NOT recommend adding exceptions. We need to figure out the reason for the problem. It could be security software, it could be malware. Did you review the two articles?

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yes, i read, but didn't solve.

this happened when i removed the certs from the server tab. only this action affected the error.

what information i should be give?

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Are you getting the error code SEC_ERROR_UNKNOWN_ISSUER ?

If so, click that, and Firefox should display a coded version of the certificate that does not meet its standards. There should be a button to copy that so you can paste it into a reply. A volunteer will decode it and see whether it points to a specific intermediary. Or you can give that a try yourself. I use https://certlogik.com/decoder/ but of course there must be many others as well.

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help info

Modified by smilefg

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help info

Modified by smilefg

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Seçilmiş Həll

As far as I can tell, that is the real certificate. I wonder if your cert8.db file has become corrupted. Could you try the steps under "Corrupted certificate store" in this article if you haven't already: What do the security warning codes mean?

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great! big thanks.