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!

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.

Google.com cannot be accessed (Did Not Connect: Potential Security Issue)

  • 2 replies
  • 1 has this problem
  • 88 views
  • Last reply by cor-el

Shukry
Shukry
more options

Hello, It has been more than 2-weeks since Firefox cannot access www.google.com issuing the error page : "Did Not Connect: Potential Security Issue", and the following advanced data :

Websites prove their identity via certificates. Firefox does not trust this site because it uses a certificate that is not valid for www.google.com. The certificate is only valid for the following names: www.google.com.eg, *.google.com.eg, google.com.eg

Error code: SSL_ERROR_BAD_CERT_DOMAIN

View Certificate

Hello, It has been more than 2-weeks since Firefox cannot access www.google.com issuing the error page : "Did Not Connect: Potential Security Issue", and the following advanced data : Websites prove their identity via certificates. Firefox does not trust this site because it uses a certificate that is not valid for www.google.com. The certificate is only valid for the following names: www.google.com.eg, *.google.com.eg, google.com.eg Error code: SSL_ERROR_BAD_CERT_DOMAIN View Certificate

Chosen solution

  • MOZILLA_PKIX_ERROR_MITM_DETECTED
  • 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

Read this answer in context 👍 0

All Replies (2)

FredMcD
FredMcD
more options

Chosen Solution

  • MOZILLA_PKIX_ERROR_MITM_DETECTED
  • 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

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can check the connection settings.

  • Options/Preferences -> General -> Network: Connection -> Settings

If you do not need to use a proxy to connect to internet then try to select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.

See "Firefox connection settings":