Avatar for Username

Buscar en Ayuda

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

Este tema ha sido archivado. Haz una nueva pregunta si necesitas ayuda.

"Insecure Connection" with many webistes, incl. mozilla.com -- Firefox does not open sites due certificate issues

  • 1 respuesta
  • 1 tiene este problema
  • 1 visita
  • Última respuesta de FredMcD

peter.petermann
peter.petermann
more options

I am tryin to access several websites from my Firefox browser, including mozilla's own support site; but all I get is an error page telling my that the certificate is not accepted because "the owner of the website did not confgure their website correctly". I did not use to have this problem, it started occuring about 1 week ago -- and surely, there is something iherently wrong if even your own site is not acceptable. I have uninstalled and re-installed Firefox already but the problem persists. Please let me know what I need to configure to solve this issue. Thanks (PS: I accessing your support page through my IE 11 browser)

I am tryin to access several websites from my Firefox browser, including mozilla's own support site; but all I get is an error page telling my that the certificate is not accepted because "the owner of the website did not confgure their website correctly". I did not use to have this problem, it started occuring about 1 week ago -- and surely, there is something iherently wrong if even your own site is not acceptable. I have uninstalled and re-installed Firefox already but the problem persists. Please let me know what I need to configure to solve this issue. Thanks (PS: I accessing your support page through my IE 11 browser)

Todas las respuestas (1)

FredMcD
FredMcD
more options

There is security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connections and send their own certificate.

https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can

https://support.mozilla.org/en-US/kb/firefox-and-other-browsers-cant-load-websites

https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message

https://support.mozilla.org/en-US/kb/connection-untrusted-error-message

http://kb.mozillazine.org/Error_loading_websites


  • uses an invalid security certificate SSL_ERROR_BAD_CERT_DOMAIN
  • configured their website improperly

How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER