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Certificate problem with HTTPS -sites

  • 3 replies
  • 1 has this problem
  • 1 view
  • Last reply by juoksuvali

juoksuvali
juoksuvali
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Hey. Im having a problem on ALL https-starting sites. When i try to in example connect https://addons.mozilla.org/ , i get just this: http://i.imgur.com/2zPE8.jpg

I have already tried to reboot computer, boot FF without addons, reinstall firefox etc, but the problem still stays. With IE everything seems to work fine, but i would still like to use firefox.

Hey. Im having a problem on ALL https-starting sites. When i try to in example connect https://addons.mozilla.org/ , i get just this: http://i.imgur.com/2zPE8.jpg I have already tried to reboot computer, boot FF without addons, reinstall firefox etc, but the problem still stays. With IE everything seems to work fine, but i would still like to use firefox.

Chosen solution

Which security software (firewall, anti-virus) do you have?

Some firewalls monitor secure (https) connections and send their own certificate instead of the website's certificate.
If you have ESET then see:

  • ESET setup -> advanced setup -> extend web and email tree -> SSL
  • SSL protocol: Do not scan SSL protocol

You can retrieve the certificate and check details like who issued certificates and expiration dates of certificates.

  • Click the link at the bottom of the error page: "I Understand the Risks"

Let Firefox retrieve the certificate: "Add Exception" -> "Get Certificate".

  • Click the "View..." button and inspect the certificate and check who is the issuer.

You can see more Details like intermediate certificates that are used in the Details pane.

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All Replies (3)

ideato
ideato
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see if this helps : "This Connection is Untrusted" error message appears - What to do

see also : Enable SSL to fix the Firefox cannot connect securely error message


thank you

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

Which security software (firewall, anti-virus) do you have?

Some firewalls monitor secure (https) connections and send their own certificate instead of the website's certificate.
If you have ESET then see:

  • ESET setup -> advanced setup -> extend web and email tree -> SSL
  • SSL protocol: Do not scan SSL protocol

You can retrieve the certificate and check details like who issued certificates and expiration dates of certificates.

  • Click the link at the bottom of the error page: "I Understand the Risks"

Let Firefox retrieve the certificate: "Add Exception" -> "Get Certificate".

  • Click the "View..." button and inspect the certificate and check who is the issuer.

You can see more Details like intermediate certificates that are used in the Details pane.

juoksuvali
juoksuvali Question owner
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Are you a wizard? Im using ESET nod32 and Turning off the SSL protocol scan solved this completely... thank you very much!