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

Ova tema je arhivirana. Pitajte drugo pitanje ako vam je potrebna pomoć.

Hi, my PC just upgraded to Firefox 44.0. Now some security / certificate issue is blocking access to Yahoo and even Mozilla websites

  • 1 odgovor
  • 4 ima ovaj problem
  • 4 views
  • Posljednji odgovor poslao philipp

jfb55
jfb55
more options

When I try to connect to yahoo, I get the following message: The owner of www.yahoo.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.

This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox only connect to it securely. As a result, it is not possible to add an exception for this certificate.

When I try to connect to mozilla, I get the following message: The owner of www.mozilla.org has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.

Does anybody have a solution? IE works just fine, btw  ;)

When I try to connect to yahoo, I get the following message: The owner of www.yahoo.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website. This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox only connect to it securely. As a result, it is not possible to add an exception for this certificate. When I try to connect to mozilla, I get the following message: The owner of www.mozilla.org has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website. Does anybody have a solution? IE works just fine, btw ;)

All Replies (1)

philipp
philipp
  • Moderator
more options

hi jfb55, please see if How to troubleshoot security error codes on secure websites can help.