This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

Error code: SEC_ERROR_OCSP_INVALID_SIGNING_CER comes up when trying to get hotmail

  • 4 cavab
  • 5 have this problem
  • 1 view
  • Last reply by Paul

more options

Cannot access my hotmail account on Firefox - error code SEC_ERROR_OCSP_INVALID_SIGNING_CER comes up. Can access it on Internet Explorer. Not sure what to do!

Cannot access my hotmail account on Firefox - error code SEC_ERROR_OCSP_INVALID_SIGNING_CER comes up. Can access it on Internet Explorer. Not sure what to do!

All Replies (4)

more options

Hi   !
Since last night this looks like an epidemic     - this is a misconfiguration on Microsoft's server side. If you want to, you can disable OCSP (which is a security mechanism) : 3-bar menu   (the three horizontal lines in the upper right corner, right under the closing X) => Advanced => Certificates panel And Let's keep our fingers crossed that Microsoft will fix the issue soon.


Another way to disable OCSP   (for now) : Type in the address bar   about:config   (press Enter) (promise to be careful, if asked) Type and look for the preference : security.ssl.enable_ocsp_stapling and set it's value to   false

It is best to reset this pref via the right-click context menu to   true  once you are done with this website.


Another user mentioned that 'No Proxy' fixed it for him :

Options => Advanced => Network tab => Connection Settings: 'No Proxy'.

more options

Happy112 said

Hi   !
Since last night this looks like an epidemic     - this is a misconfiguration on Microsoft's server side. If you want to, you can disable OCSP (which is a security mechanism) : 3-bar menu   (the three horizontal lines in the upper right corner, right under the closing X) => Advanced => Certificates panel And Let's keep our fingers crossed that Microsoft will fix the issue soon.

Another way to disable OCSP   (for now) : Type in the address bar   about:config   (press Enter) (promise to be careful, if asked) Type and look for the preference : security.ssl.enable_ocsp_stapling and set it's value to   false

It is best to reset this pref via the right-click context menu to   true  once you are done with this website.


Another user mentioned that 'No Proxy' fixed it for him :

Options => Advanced => Network tab => Connection Settings: 'No Proxy'.

more options

Hi - thanks for the response. I disable OCSP and this worked for about an hour - then it went again. Tried all three options - none worked.

Maybe Microsoft is on the case.

Am I the only one with this issue?

more options

Hi

No, it looks like many other people have been impact by this. Microsoft knows about this issue and is working on resolving it.