Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

I am getting a warning that a secure connection failed but there is no way to bypass the warning.

  • 1 reply
  • 1 has this problem
  • 11 views
  • Last reply by philipp

JHA50
JHA50
more options

In trying to logon on to Outlook for my email I am getting a warning message that the secure connction failed. It further says "An error occurred during a connection to outlook.live.com. Invalid OCSP signing certificate in OCSP response. Error code: SEC_ERROR_OCSP_INVALID_SIGNING_CERT". When I go to "Learn more..." and check on how to bypass it tells me to click on the Advanced button. But there is NO Advanced button that is clickable on any screen. I have had no problems logging in to my Outlook email until two days ago when this problem started. I also have no problem logging on to my Outlook email when I do so on a Samsung Galaxy S4.

In trying to logon on to Outlook for my email I am getting a warning message that the secure connction failed. It further says "An error occurred during a connection to outlook.live.com. Invalid OCSP signing certificate in OCSP response. Error code: SEC_ERROR_OCSP_INVALID_SIGNING_CERT". When I go to "Learn more..." and check on how to bypass it tells me to click on the Advanced button. But there is NO Advanced button that is clickable on any screen. I have had no problems logging in to my Outlook email until two days ago when this problem started. I also have no problem logging on to my Outlook email when I do so on a Samsung Galaxy S4.

All Replies (1)

philipp
philipp
  • Moderator
more options

hi, unfortunately MS has misconfigured a security feature (OCSP stapling) on their servers which got now cached in your local firefox installation.

in order to resolve that, please enter about:config into the firefox address bar (confirm the info message in case it shows up) & search for the preference named security.ssl.enable_ocsp_stapling. double-click it and change its value to false - this will degrade a security feature in firefox, so please revisit it in a couple of days again after microsoft has fixed their stuff and turn it back on again then...