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

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

Your connection is not secure for all website, it is making firefox is useless. Try to address it as soon as possible

  • 6 fhreagra
  • 2 leis an bhfadhb seo
  • 246 views
  • Freagra is déanaí ó judefdo

more options

We are getting the following error message The certificate is not trusted because the issuer certificate is unknown. The server might not be sending the appropriate intermediate certificates. An additional root certificate may need to be imported. Error code: MOZILLA_PKIX_ERROR_MITM_DETECTED

We are not using any AVAST, but we are using mcafee. Import root certificate to, but it is still failing and unable to find the company root certificate.

We are getting the following error message The certificate is not trusted because the issuer certificate is unknown. The server might not be sending the appropriate intermediate certificates. An additional root certificate may need to be imported. Error code: MOZILLA_PKIX_ERROR_MITM_DETECTED We are not using any AVAST, but we are using mcafee. Import root certificate to, but it is still failing and unable to find the company root certificate.

Réiteach roghnaithe

if you know that you're man-in-the-middling https connections in your corporate network, you could turn security.enterprise_roots.enabled in about:config to true and restart firefox once (should work in versions 63 and upwards)...

Read this answer in context 👍 2

All Replies (6)

more options

hi, please give us more information about the error by clicking on the error code, copying the text to the clipboard and then pasting it here into a reply in the forum like shown in the screenshot.

thank you!

more options

https://www.cnn.com/

Your connection is being intercepted by a TLS proxy. Uninstall it if possible or configure your device to trust its root certificate. HTTP Strict Transport Security: false HTTP Public Key Pinning: false

more options

Installed our company root certificate. but still browser unable to recognize the root certificate

more options

Réiteach Roghnaithe

if you know that you're man-in-the-middling https connections in your corporate network, you could turn security.enterprise_roots.enabled in about:config to true and restart firefox once (should work in versions 63 and upwards)...

more options

What is the value of this pref on the about:config page?

  • security.pki.mitm_canary_issuer

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

more options

security.pki.mitm_canary_issuer;C=US,ST=CT,L=XXXXX,OU=XX Corporate IT,O=XXXXXXXXXX XXXX XXXXX,CN=XXX External Issuing CA 201811021000