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"Your connection (to mozilla.com) is not secure" keeps coming up and preventing me from downloading a new version of Firefox.

Firefox Privacy and security
Shadow110 replied 8 years ago
deerum
deerum

This is what comes up:

download.mozilla.org uses an invalid security certificate. 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: SEC_ERROR_UNKNOWN_ISSUER

https://download.mozilla.org/?product=firefox-stub&os=win&lang=en-GB

Peer's Certificate issuer is not recognised.

HTTP Strict Transport Security: false HTTP Public Key Pinning: true

Certificate chain:

BEGIN CERTIFICATE-----

MIIFizCCBHOgAwIBAgIQBcHSpPcyDwKyopFJbur1+zANBgkqhkiG9w0BAQsFADBN MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMScwJQYDVQQDEx5E aWdpQ2VydCBTSEEyIFNlY3VyZSBTZXJ2ZXIgQ0EwHhcNMTYxMTMwMDAwMDAwWhcN MjAwMjAzMTIwMDAwWjCBkDELMAkGA1UEBhMCVVMxEzARBgNVBAgTCkNhbGlmb3Ju aWExFjAUBgNVBAcTDU1vdW50YWluIFZpZXcxHDAaBgNVBAoTE01vemlsbGEgQ29y cG9yYXRpb24xFzAVBgNVBAsTDkNsb3VkIFNlcnZpY2VzMR0wGwYDVQQDExRkb3du bG9hZC5tb3ppbGxhLm9yZzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB ALmfQasz8jUVcP48Hsv01AAYILzgzj/XlHZYih1eWeQNKdkbbna9Ejdqcl3RjCXu W3RgJCVIt+R5cn6rTzqcXR+DcJ024SYa8xa6oXoUyB396y775ErJF/WDZ+4Rc+9t 29JEbRzaTYqKP1XbzuysCJKEKXlbOA2ajSxs6wma2/zjBIxadIyoXpsyMs3hYT6f 2VuIoynd+bm3dN/6Epl90HbaU7PUcKBNndwAv3QFKRI9CFtVlSP9ass0ItgLsA8Z HQfsKEsaq/dONpPWTYRvSw7jvFNIX+R8gULqMnAq1jSov36TxFnZNxI1NuZkzbL2 vKdBXY3fW2mn02pXFnG6SXUCAwEAAaOCAiEwggIdMB8GA1UdIwQYMBaAFA+AYRyC MWHVLyjnjUY4tCzhxtniMB0GA1UdDgQWBBT8C6yAayTtP9zGFSV8+q/jnmYeZDBl BgNVHREEXjBcghRkb3dubG9hZC5tb3ppbGxhLm9yZ4IfYm91bmNlci1ib3VuY2Vy LnByb2QubW96YXdzLm5ldIIjYm91bmNlci1ib3VuY2VyLWVsYi5wcm9kLm1vemF3 cy5uZXQwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEF BQcDAjBrBgNVHR8EZDBiMC+gLaArhilodHRwOi8vY3JsMy5kaWdpY2VydC5jb20v c3NjYS1zaGEyLWc1LmNybDAvoC2gK4YpaHR0cDovL2NybDQuZGlnaWNlcnQuY29t L3NzY2Etc2hhMi1nNS5jcmwwTAYDVR0gBEUwQzA3BglghkgBhv1sAQEwKjAoBggr BgEFBQcCARYcaHR0cHM6Ly93d3cuZGlnaWNlcnQuY29tL0NQUzAIBgZngQwBAgIw fAYIKwYBBQUHAQEEcDBuMCQGCCsGAQUFBzABhhhodHRwOi8vb2NzcC5kaWdpY2Vy dC5jb20wRgYIKwYBBQUHMAKGOmh0dHA6Ly9jYWNlcnRzLmRpZ2ljZXJ0LmNvbS9E aWdpQ2VydFNIQTJTZWN1cmVTZXJ2ZXJDQS5jcnQwDAYDVR0TAQH/BAIwADANBgkq hkiG9w0BAQsFAAOCAQEA17GI3N3LrSWObBBdkrjYfuSvFlHQgws/2F0bHE83Yy+k o7Bu/S+E9fPmRw0bKfH4y9It5UjD2Rkb1Tmf/zpkWjB/7FGtpcLl9yETv+7CW8+U opI/qaYAvXkGcJzov02RC8tkZt832PeBoe9Abu22+DC1ndJVTeNqAXpVOZLvN6jq cCzHuQBl5ePOEaVodtdonv6Ld7JKEf+LornWEdmGbBRNgKyUVahVTl9iy3swfsDX 7/xUf4gnbpvCA7laIcs7uBzgOOsQ2jXubppBqvol+Ixal1quLNdt6LZY57+FpH1G J113eNlrUAdBfy0vtI6mdfxDpmXYEEZRwia4jnWk3w==

END CERTIFICATE-----
BEGIN CERTIFICATE-----

MIIElDCCA3ygAwIBAgIQAf2j627KdciIQ4tyS8+8kTANBgkqhkiG9w0BAQsFADBh MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3 d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBD QTAeFw0xMzAzMDgxMjAwMDBaFw0yMzAzMDgxMjAwMDBaME0xCzAJBgNVBAYTAlVT MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxJzAlBgNVBAMTHkRpZ2lDZXJ0IFNIQTIg U2VjdXJlIFNlcnZlciBDQTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB ANyuWJBNwcQwFZA1W248ghX1LFy949v/cUP6ZCWA1O4Yok3wZtAKc24RmDYXZK83 nf36QYSvx6+M/hpzTc8zl5CilodTgyu5pnVILR1WN3vaMTIa16yrBvSqXUu3R0bd KpPDkC55gIDvEwRqFDu1m5K+wgdlTvza/P96rtxcflUxDOg5B6TXvi/TC2rSsd9f /ld0Uzs1gN2ujkSYs58O09rg1/RrKatEp0tYhG2SS4HD2nOLEpdIkARFdRrdNzGX kujNVA075ME/OV4uuPNcfhCOhkEAjUVmR7ChZc6gqikJTvOX6+guqw9ypzAO+sf0 /RR3w6RbKFfCs/mC/bdFWJsCAwEAAaOCAVowggFWMBIGA1UdEwEB/wQIMAYBAf8C AQAwDgYDVR0PAQH/BAQDAgGGMDQGCCsGAQUFBwEBBCgwJjAkBggrBgEFBQcwAYYY aHR0cDovL29jc3AuZGlnaWNlcnQuY29tMHsGA1UdHwR0MHIwN6A1oDOGMWh0dHA6 Ly9jcmwzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEdsb2JhbFJvb3RDQS5jcmwwN6A1 oDOGMWh0dHA6Ly9jcmw0LmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEdsb2JhbFJvb3RD QS5jcmwwPQYDVR0gBDYwNDAyBgRVHSAAMCowKAYIKwYBBQUHAgEWHGh0dHBzOi8v d3d3LmRpZ2ljZXJ0LmNvbS9DUFMwHQYDVR0OBBYEFA+AYRyCMWHVLyjnjUY4tCzh xtniMB8GA1UdIwQYMBaAFAPeUDVW0Uy7ZvCj4hsbw5eyPdFVMA0GCSqGSIb3DQEB CwUAA4IBAQAjPt9L0jFCpbZ+QlwaRMxp0Wi0XUvgBCFsS+JtzLHgl4+mUwnNqipl 5TlPHoOlblyYoiQm5vuh7ZPHLgLGTUq/sELfeNqzqPlt/yGFUzZgTHbO7Djc1lGA 8MXW5dRNJ2Srm8c+cftIl7gzbckTB+6WohsYFfZcTEDts8Ls/3HB40f/1LkAtDdC 2iDJ6m6K7hQGrn2iWZiIqBtvLfTyyRRfJs8sjX7tN8Cp1Tm5gr8ZDOo0rwAhaPit c+LJMto4JQtV05od8GiG7S5BNO98pVAdvzr508EIDObtHopYJeS4d60tbvVS3bR0 j6tJLp07kzQoH3jOlOrHvdPJbRzeXDLz

END CERTIFICATE-----
This is what comes up: download.mozilla.org uses an invalid security certificate. 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: SEC_ERROR_UNKNOWN_ISSUER https://download.mozilla.org/?product=firefox-stub&os=win&lang=en-GB Peer's Certificate issuer is not recognised. HTTP Strict Transport Security: false HTTP Public Key Pinning: true Certificate chain: -----BEGIN CERTIFICATE----- MIIFizCCBHOgAwIBAgIQBcHSpPcyDwKyopFJbur1+zANBgkqhkiG9w0BAQsFADBN MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMScwJQYDVQQDEx5E aWdpQ2VydCBTSEEyIFNlY3VyZSBTZXJ2ZXIgQ0EwHhcNMTYxMTMwMDAwMDAwWhcN MjAwMjAzMTIwMDAwWjCBkDELMAkGA1UEBhMCVVMxEzARBgNVBAgTCkNhbGlmb3Ju aWExFjAUBgNVBAcTDU1vdW50YWluIFZpZXcxHDAaBgNVBAoTE01vemlsbGEgQ29y cG9yYXRpb24xFzAVBgNVBAsTDkNsb3VkIFNlcnZpY2VzMR0wGwYDVQQDExRkb3du bG9hZC5tb3ppbGxhLm9yZzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB ALmfQasz8jUVcP48Hsv01AAYILzgzj/XlHZYih1eWeQNKdkbbna9Ejdqcl3RjCXu W3RgJCVIt+R5cn6rTzqcXR+DcJ024SYa8xa6oXoUyB396y775ErJF/WDZ+4Rc+9t 29JEbRzaTYqKP1XbzuysCJKEKXlbOA2ajSxs6wma2/zjBIxadIyoXpsyMs3hYT6f 2VuIoynd+bm3dN/6Epl90HbaU7PUcKBNndwAv3QFKRI9CFtVlSP9ass0ItgLsA8Z HQfsKEsaq/dONpPWTYRvSw7jvFNIX+R8gULqMnAq1jSov36TxFnZNxI1NuZkzbL2 vKdBXY3fW2mn02pXFnG6SXUCAwEAAaOCAiEwggIdMB8GA1UdIwQYMBaAFA+AYRyC MWHVLyjnjUY4tCzhxtniMB0GA1UdDgQWBBT8C6yAayTtP9zGFSV8+q/jnmYeZDBl BgNVHREEXjBcghRkb3dubG9hZC5tb3ppbGxhLm9yZ4IfYm91bmNlci1ib3VuY2Vy LnByb2QubW96YXdzLm5ldIIjYm91bmNlci1ib3VuY2VyLWVsYi5wcm9kLm1vemF3 cy5uZXQwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEF BQcDAjBrBgNVHR8EZDBiMC+gLaArhilodHRwOi8vY3JsMy5kaWdpY2VydC5jb20v c3NjYS1zaGEyLWc1LmNybDAvoC2gK4YpaHR0cDovL2NybDQuZGlnaWNlcnQuY29t L3NzY2Etc2hhMi1nNS5jcmwwTAYDVR0gBEUwQzA3BglghkgBhv1sAQEwKjAoBggr BgEFBQcCARYcaHR0cHM6Ly93d3cuZGlnaWNlcnQuY29tL0NQUzAIBgZngQwBAgIw fAYIKwYBBQUHAQEEcDBuMCQGCCsGAQUFBzABhhhodHRwOi8vb2NzcC5kaWdpY2Vy dC5jb20wRgYIKwYBBQUHMAKGOmh0dHA6Ly9jYWNlcnRzLmRpZ2ljZXJ0LmNvbS9E aWdpQ2VydFNIQTJTZWN1cmVTZXJ2ZXJDQS5jcnQwDAYDVR0TAQH/BAIwADANBgkq hkiG9w0BAQsFAAOCAQEA17GI3N3LrSWObBBdkrjYfuSvFlHQgws/2F0bHE83Yy+k o7Bu/S+E9fPmRw0bKfH4y9It5UjD2Rkb1Tmf/zpkWjB/7FGtpcLl9yETv+7CW8+U opI/qaYAvXkGcJzov02RC8tkZt832PeBoe9Abu22+DC1ndJVTeNqAXpVOZLvN6jq cCzHuQBl5ePOEaVodtdonv6Ld7JKEf+LornWEdmGbBRNgKyUVahVTl9iy3swfsDX 7/xUf4gnbpvCA7laIcs7uBzgOOsQ2jXubppBqvol+Ixal1quLNdt6LZY57+FpH1G J113eNlrUAdBfy0vtI6mdfxDpmXYEEZRwia4jnWk3w== -----END CERTIFICATE----- -----BEGIN CERTIFICATE----- MIIElDCCA3ygAwIBAgIQAf2j627KdciIQ4tyS8+8kTANBgkqhkiG9w0BAQsFADBh MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3 d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBD QTAeFw0xMzAzMDgxMjAwMDBaFw0yMzAzMDgxMjAwMDBaME0xCzAJBgNVBAYTAlVT MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxJzAlBgNVBAMTHkRpZ2lDZXJ0IFNIQTIg U2VjdXJlIFNlcnZlciBDQTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB ANyuWJBNwcQwFZA1W248ghX1LFy949v/cUP6ZCWA1O4Yok3wZtAKc24RmDYXZK83 nf36QYSvx6+M/hpzTc8zl5CilodTgyu5pnVILR1WN3vaMTIa16yrBvSqXUu3R0bd KpPDkC55gIDvEwRqFDu1m5K+wgdlTvza/P96rtxcflUxDOg5B6TXvi/TC2rSsd9f /ld0Uzs1gN2ujkSYs58O09rg1/RrKatEp0tYhG2SS4HD2nOLEpdIkARFdRrdNzGX kujNVA075ME/OV4uuPNcfhCOhkEAjUVmR7ChZc6gqikJTvOX6+guqw9ypzAO+sf0 /RR3w6RbKFfCs/mC/bdFWJsCAwEAAaOCAVowggFWMBIGA1UdEwEB/wQIMAYBAf8C AQAwDgYDVR0PAQH/BAQDAgGGMDQGCCsGAQUFBwEBBCgwJjAkBggrBgEFBQcwAYYY aHR0cDovL29jc3AuZGlnaWNlcnQuY29tMHsGA1UdHwR0MHIwN6A1oDOGMWh0dHA6 Ly9jcmwzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEdsb2JhbFJvb3RDQS5jcmwwN6A1 oDOGMWh0dHA6Ly9jcmw0LmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEdsb2JhbFJvb3RD QS5jcmwwPQYDVR0gBDYwNDAyBgRVHSAAMCowKAYIKwYBBQUHAgEWHGh0dHBzOi8v d3d3LmRpZ2ljZXJ0LmNvbS9DUFMwHQYDVR0OBBYEFA+AYRyCMWHVLyjnjUY4tCzh xtniMB8GA1UdIwQYMBaAFAPeUDVW0Uy7ZvCj4hsbw5eyPdFVMA0GCSqGSIb3DQEB CwUAA4IBAQAjPt9L0jFCpbZ+QlwaRMxp0Wi0XUvgBCFsS+JtzLHgl4+mUwnNqipl 5TlPHoOlblyYoiQm5vuh7ZPHLgLGTUq/sELfeNqzqPlt/yGFUzZgTHbO7Djc1lGA 8MXW5dRNJ2Srm8c+cftIl7gzbckTB+6WohsYFfZcTEDts8Ls/3HB40f/1LkAtDdC 2iDJ6m6K7hQGrn2iWZiIqBtvLfTyyRRfJs8sjX7tN8Cp1Tm5gr8ZDOo0rwAhaPit c+LJMto4JQtV05od8GiG7S5BNO98pVAdvzr508EIDObtHopYJeS4d60tbvVS3bR0 j6tJLp07kzQoH3jOlOrHvdPJbRzeXDLz -----END CERTIFICATE-----

All Replies (1)

Shadow110
Shadow110

There is security software like Avast/AVG, Kaspersky, BitDefender and ESET that intercept secure connections and send their own certificate. If you are running any of the above software please check their community forum for a work around to apply settings.

These pages are also for the errors you may have besides relating to the above.

Please let us know if this solved your issue or if need further assistance.

Modified by Shadow110