How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites
he owner of www.google.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 may only connect to it securely. As a result, it is not possible to add an exception for this certificate.
Peer’s Certificate issuer is not recognized.
HTTP Strict Transport Security: false HTTP Public Key Pinning: true
Certificate chain:
BEGIN CERTIFICATE-----
MIIC2TCCAcGgAwIBAgIRALB+Ho8wLmTaHf40Q8qAVLUwDQYJKoZIhvcNAQELBQAw KjELMAkGA1UEBhMCRU4xGzAZBgNVBAMMEjc1MGFmMmJiMWVmZGU0ZGEgMjAeFw0x ODAzMTMxODMzMDJaFw0xODA2MDUxODE2MDBaMGgxCzAJBgNVBAYTAlVTMRMwEQYD VQQIDApDYWxpZm9ybmlhMRYwFAYDVQQHDA1Nb3VudGFpbiBWaWV3MRMwEQYDVQQK DApHb29nbGUgSW5jMRcwFQYDVQQDDA53d3cuZ29vZ2xlLmNvbTCBnzANBgkqhkiG 9w0BAQEFAAOBjQAwgYkCgYEA0uAbxR3farsmGBC9mAhRgi9gMwGAULbCOMa0eMI/ P3ijI8CwoKeHMXriJBu6InHcDQ5+kFaa4f/JCjvh9iQAHJLqwWLnW/c1zG61Dd8I n9NSRLrrTcfKbD9oZ1V7VxFcJiaOmTG5wMu4QSena3z4cjGyic9L5g0OKYsvuupG /3kCAwEAAaNAMD4wGQYDVR0RBBIwEIIOd3d3Lmdvb2dsZS5jb20wDAYDVR0TAQH/ BAIwADATBgNVHSUEDDAKBggrBgEFBQcDATANBgkqhkiG9w0BAQsFAAOCAQEAEt1y bNxTp5rSS4YRwM2wHML7nSyffROCzACXNlHj0meDwVRM/PN6rOIB5O2Kmaz8u8RT 0DmkiLXUOIpOvwQoVQWJLIvQAPqChnFL3qs36nzXNu+HTHNyNKSw+Wgd+nMacICl DSr8Ajlb70mVP7FbdndN3RSDKwmfeTL0Eaq5tuUAMn0hVxNyroexEsRjLOcgglNB AHVsXDM/8RnvtZ+UJW9PtU8InczCJlhCWMyJ6E/8H1CfZye/OHL6dLZk4uOCZ3Af mf1pBzgrBrKBUKE8wKTHblhj4l7p1irmlw3vB9veEjihwfedH8y/YMAKF3eq12VK /9HmrFv1d+/LO3KoKg==
END CERTIFICATE-----
All Replies (2)
freaky said
he owner of www.google.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 may only connect to it securely. As a result, it is not possible to add an exception for this certificate. https://www.google.com/ Peer’s Certificate issuer is not recognized. HTTP Strict Transport Security: false HTTP Public Key Pinning: true Certificate chain:
BEGIN CERTIFICATE-----MIIC2TCCAcGgAwIBAgIRALB+Ho8wLmTaHf40Q8qAVLUwDQYJKoZIhvcNAQELBQAw KjELMAkGA1UEBhMCRU4xGzAZBgNVBAMMEjc1MGFmMmJiMWVmZGU0ZGEgMjAeFw0x ODAzMTMxODMzMDJaFw0xODA2MDUxODE2MDBaMGgxCzAJBgNVBAYTAlVTMRMwEQYD VQQIDApDYWxpZm9ybmlhMRYwFAYDVQQHDA1Nb3VudGFpbiBWaWV3MRMwEQYDVQQK DApHb29nbGUgSW5jMRcwFQYDVQQDDA53d3cuZ29vZ2xlLmNvbTCBnzANBgkqhkiG 9w0BAQEFAAOBjQAwgYkCgYEA0uAbxR3farsmGBC9mAhRgi9gMwGAULbCOMa0eMI/ P3ijI8CwoKeHMXriJBu6InHcDQ5+kFaa4f/JCjvh9iQAHJLqwWLnW/c1zG61Dd8I n9NSRLrrTcfKbD9oZ1V7VxFcJiaOmTG5wMu4QSena3z4cjGyic9L5g0OKYsvuupG /3kCAwEAAaNAMD4wGQYDVR0RBBIwEIIOd3d3Lmdvb2dsZS5jb20wDAYDVR0TAQH/ BAIwADATBgNVHSUEDDAKBggrBgEFBQcDATANBgkqhkiG9w0BAQsFAAOCAQEAEt1y bNxTp5rSS4YRwM2wHML7nSyffROCzACXNlHj0meDwVRM/PN6rOIB5O2Kmaz8u8RT 0DmkiLXUOIpOvwQoVQWJLIvQAPqChnFL3qs36nzXNu+HTHNyNKSw+Wgd+nMacICl DSr8Ajlb70mVP7FbdndN3RSDKwmfeTL0Eaq5tuUAMn0hVxNyroexEsRjLOcgglNB AHVsXDM/8RnvtZ+UJW9PtU8InczCJlhCWMyJ6E/8H1CfZye/OHL6dLZk4uOCZ3Af mf1pBzgrBrKBUKE8wKTHblhj4l7p1irmlw3vB9veEjihwfedH8y/YMAKF3eq12VK /9HmrFv1d+/LO3KoKg==
END CERTIFICATE-----
How should I FIX this problem..?? your kind assist & helps is highly appreciate.
That certificate has a weird issuer:
Subject: C=US, ST=California, L=Mountain View, O=Google Inc, CN=www.google.com Issuer: C=EN, CN=750af2bb1efde4da 2
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":
Do a malware check with several malware scanning programs on the Windows computer.
Please scan with all programs because each program detects different malware. All these programs have free versions.
Make sure you update each program to get the latest version of their databases before doing a scan.
- Malwarebytes' Anti-Malware:
http://www.malwarebytes.org/mbam.php - AdwCleaner:
http://www.bleepingcomputer.com/download/adwcleaner/
http://www.softpedia.com/get/Antivirus/Removal-Tools/AdwCleaner.shtml - SuperAntispyware:
http://www.superantispyware.com/ - Microsoft Safety Scanner:
https://www.microsoft.com/security/scanner/en-us/default.aspx - Windows Defender:
https://windows.microsoft.com/en-us/windows/using-defender - Spybot Search & Destroy:
http://www.safer-networking.org/en/index.html - Kasperky Free Security Scan:
https://www.kaspersky.com/security-scan
You can also do a check for a rootkit infection with TDSSKiller.
- Anti-rootkit utility TDSSKiller:
https://support.kaspersky.com/viruses/disinfection/5350
https://support.kaspersky.com/viruses/utility
See also:
- "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked