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Connection is not secure error code sec-error-ocsp-invalid-cert

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  • Last reply by cor-el

3BUICK8
3BUICK8
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Have not been able to check our e-mails on our outlook account for 2 days.I have used RESTORE IT with no success but I am able to check my other BOOKMARK list but can't get to my e-mails.

Have not been able to check our e-mails on our outlook account for 2 days.I have used RESTORE IT with no success but I am able to check my other BOOKMARK list but can't get to my e-mails.

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cor-el
cor-el
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This is is an issue with some Microsoft servers that are sending a cached OCSP Stapling response that is signed with an expired certificate.

Microsoft needs to reboot/repair the servers that have cached this expired certificate that is used to sign the OCSP Stapling response. You should no longer experience this issue once the server that you access has been fixed.

As a workaround you can temporarily toggle this pref to false on the about:config page to see whether disabling OCSP Stapling works for you.

  • security.ssl.enable_ocsp_stapling = false

Best is to reset this pref via the right-click context menu to true once you are done with an affected website for this Firefox session since this is a security feature.

You can open the about:config page: via the location/address bar. You can accept the warning and click "I'll be careful" to continue.