Browser will not open websites due to SEC_ERROR_UNKNOWN_ISSUER
I have followed all the steps here and the problem persists: https://support.mozilla.org/en-US/questions/1130326 When I run the test page at https://jeffersonscher.com/res/jstest.php I do not get an error but a bunch of data.
I'm running Windows 7 and do not have the issue in Chrome. I've turned off AVG, there's nothing wrong with the date and time settings. The browser had been rendered unusable because of this.
Thank you.
Chosen solution
thanks, these certificate infos actually look genuine (i get the same when i load facebook.com). could you try if reinstalling firefox and/or refreshing is helping in your situation?
Refresh Firefox - reset add-ons and settings
Read this answer in context 👍 1All Replies (6)
hi, can you 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!
Hi Philipp. Thank you for your willingness to help. Here is the text from facebook:
Peer’s Certificate issuer is not recognized.
HTTP Strict Transport Security: true HTTP Public Key Pinning: true
Certificate chain:
BEGIN CERTIFICATE-----
MIIGsjCCBZqgAwIBAgIQCzw7YBoY9Z7itrsFYF7ywDANBgkqhkiG9w0BAQsFADBw MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3 d3cuZGlnaWNlcnQuY29tMS8wLQYDVQQDEyZEaWdpQ2VydCBTSEEyIEhpZ2ggQXNz dXJhbmNlIFNlcnZlciBDQTAeFw0xNzEyMTUwMDAwMDBaFw0xOTAzMjIxMjAwMDBa MGkxCzAJBgNVBAYTAlVTMRMwEQYDVQQIEwpDYWxpZm9ybmlhMRMwEQYDVQQHEwpN ZW5sbyBQYXJrMRcwFQYDVQQKEw5GYWNlYm9vaywgSW5jLjEXMBUGA1UEAwwOKi5m YWNlYm9vay5jb20wWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAASIA87IjqqM6JBX puN20BXCVsDjoP9wnF2rSV60qC130oLTrgfOQ3Uk1dv1R6LFCx4gs2pJUu6iDKBS /b+BXOUbo4IEGDCCBBQwHwYDVR0jBBgwFoAUUWj/kK8CB3U8zNllZGKiErhZcjsw HQYDVR0OBBYEFMD9dPV9y8Yn8QPTYqJF14QcFSEIMIHHBgNVHREEgb8wgbyCDiou ZmFjZWJvb2suY29tgg4qLnh4LmZiY2RuLm5ldIILKi5mYnNieC5jb22CDioueHou ZmJjZG4ubmV0gg4qLmZhY2Vib29rLm5ldIIOKi54eS5mYmNkbi5uZXSCDyoubWVz c2VuZ2VyLmNvbYIGZmIuY29tggsqLmZiY2RuLm5ldIIIKi5mYi5jb22CECoubS5m YWNlYm9vay5jb22CDW1lc3Nlbmdlci5jb22CDGZhY2Vib29rLmNvbTAOBgNVHQ8B Af8EBAMCB4AwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMHUGA1UdHwRu MGwwNKAyoDCGLmh0dHA6Ly9jcmwzLmRpZ2ljZXJ0LmNvbS9zaGEyLWhhLXNlcnZl ci1nNi5jcmwwNKAyoDCGLmh0dHA6Ly9jcmw0LmRpZ2ljZXJ0LmNvbS9zaGEyLWhh LXNlcnZlci1nNi5jcmwwTAYDVR0gBEUwQzA3BglghkgBhv1sAQEwKjAoBggrBgEF BQcCARYcaHR0cHM6Ly93d3cuZGlnaWNlcnQuY29tL0NQUzAIBgZngQwBAgIwgYMG CCsGAQUFBwEBBHcwdTAkBggrBgEFBQcwAYYYaHR0cDovL29jc3AuZGlnaWNlcnQu Y29tME0GCCsGAQUFBzAChkFodHRwOi8vY2FjZXJ0cy5kaWdpY2VydC5jb20vRGln aUNlcnRTSEEySGlnaEFzc3VyYW5jZVNlcnZlckNBLmNydDAMBgNVHRMBAf8EAjAA MIIBfgYKKwYBBAHWeQIEAgSCAW4EggFqAWgAdgCkuQmQtBhYFIe7E6LMZ3AKPDWY BPkb37jjd80OyA3cEAAAAWBXnEHoAAAEAwBHMEUCIBC3Rn4i2bhLyR344u3vl7be vxoi+WPJBhGT+j1gJmg5AiEAwQ3rzH1mmMSYNYKtVNDZMo+l6e8Z35t+X9NDR7Du gWAAdwCHdb/nWXz4jEOZX73zbv9WjUdWNv9KtWDBtOr/XqCDDwAAAWBXnEL7AAAE AwBIMEYCIQCRjvvPARW3J1ENmo2Nz1cxisa1BcbDuqvSrfuXkz8btAIhAPmllqgF 8JjlVHUChiFzghsKVBeTxRagi55tgsAciaoZAHUAu9nfvB+KcbWTlCOXqpJ7RzhX lQqrUugakJZkNo4e0YUAAAFgV5xCUgAABAMARjBEAiBY6qdNgMoQAqVTl3zRrTmy +X/1f/esBUczsb3MWdZ1ZgIgXdxZNTrDBgyTzxgbVRObkqU3tZZdaiwsw4WI0xI0 BtQwDQYJKoZIhvcNAQELBQADggEBAGu0uxZD+IRXXlFWLPvknRkXA7J08NyVKG70 M2vDi2xF2YB8qlZgoxW8YiiV86IpwtOhYLZinSO0iCBDQmTf627LTPfuDcF6qOuO WFTvj1IbplPvGWIu5tNBiFWNQxFAIL2Rf+5vmIe+YezUHTLGGqwRtFa2ImS17IMk YjZ90LYXXO5qb1RKkFJtAvEBTbJsv8kr+J6Rx+YNJy17LnBX+MbWiyBbvUQoM3sY MmcWmcaQmECz9ZHWYjZeufSHbHKG6KDYLU8x6DyhgtxK2rsoIMlNnJkNHaLjw+b8 7VCYa+EMWppvVuNyXOk9Jkbx7Q3SEoodT77kkHUX0bF2OkZy6cc=
END CERTIFICATE-----
BEGIN CERTIFICATE-----
MIIEsTCCA5mgAwIBAgIQBOHnpNxc8vNtwCtCuF0VnzANBgkqhkiG9w0BAQsFADBs MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3 d3cuZGlnaWNlcnQuY29tMSswKQYDVQQDEyJEaWdpQ2VydCBIaWdoIEFzc3VyYW5j ZSBFViBSb290IENBMB4XDTEzMTAyMjEyMDAwMFoXDTI4MTAyMjEyMDAwMFowcDEL MAkGA1UEBhMCVVMxFTATBgNVBAoTDERpZ2lDZXJ0IEluYzEZMBcGA1UECxMQd3d3 LmRpZ2ljZXJ0LmNvbTEvMC0GA1UEAxMmRGlnaUNlcnQgU0hBMiBIaWdoIEFzc3Vy YW5jZSBTZXJ2ZXIgQ0EwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC2 4C/CJAbIbQRf1+8KZAayfSImZRauQkCbztyfn3YHPsMwVYcZuU+UDlqUH1VWtMIC Kq/QmO4LQNfE0DtyyBSe75CxEamu0si4QzrZCwvV1ZX1QK/IHe1NnF9Xt4ZQaJn1 itrSxwUfqJfJ3KSxgoQtxq2lnMcZgqaFD15EWCo3j/018QsIJzJa9buLnqS9UdAn 4t07QjOjBSjEuyjMmqwrIw14xnvmXnG3Sj4I+4G3FhahnSMSTeXXkgisdaScus0X sh5ENWV/UyU50RwKmmMbGZJ0aAo3wsJSSMs5WqK24V3B3aAguCGikyZvFEohQcft bZvySC/zA/WiaJJTL17jAgMBAAGjggFJMIIBRTASBgNVHRMBAf8ECDAGAQH/AgEA MA4GA1UdDwEB/wQEAwIBhjAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIw NAYIKwYBBQUHAQEEKDAmMCQGCCsGAQUFBzABhhhodHRwOi8vb2NzcC5kaWdpY2Vy dC5jb20wSwYDVR0fBEQwQjBAoD6gPIY6aHR0cDovL2NybDQuZGlnaWNlcnQuY29t L0RpZ2lDZXJ0SGlnaEFzc3VyYW5jZUVWUm9vdENBLmNybDA9BgNVHSAENjA0MDIG BFUdIAAwKjAoBggrBgEFBQcCARYcaHR0cHM6Ly93d3cuZGlnaWNlcnQuY29tL0NQ UzAdBgNVHQ4EFgQUUWj/kK8CB3U8zNllZGKiErhZcjswHwYDVR0jBBgwFoAUsT7D aQP4v0cB1JgmGggC72NkK8MwDQYJKoZIhvcNAQELBQADggEBABiKlYkD5m3fXPwd aOpKj4PWUS+Na0QWnqxj9dJubISZi6qBcYRb7TROsLd5kinMLYBq8I4g4Xmk/gNH E+r1hspZcX30BJZr01lYPf7TMSVcGDiEo+afgv2MW5gxTs14nhr9hctJqvIni5ly /D6q1UEL2tU2ob8cbkdJf17ZSHwD2f2LSaCYJkJA69aSEaRkCldUxPUd1gJea6zu xICaEnL6VpPX/78whQYwvwt/Tv9XBZ0k7YXDK/umdaisLRbvfXknsuvCnQsH6qqF 0wGjIChBWUMo0oHjqvbsezt3tkBigAVBRQHvFwY+3sAzm2fTYS5yh+Rp/BIAV0Ae cPUeybQ=
END CERTIFICATE-----
Chosen Solution
thanks, these certificate infos actually look genuine (i get the same when i load facebook.com). could you try if reinstalling firefox and/or refreshing is helping in your situation?
Try rename the cert9.db (cert9.db.old) file and remove the cert8.db file used previously in the Firefox profile folder to remove intermediate certificates and exceptions that Firefox has stored.
If that has helped to solve the problem then you can remove the renamed cert9.db.old file.
Firefox will store intermediate certificates that a server sends in the Certificate Manager for future use. Otherwise you can undo the rename.
You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.
- Help -> Troubleshooting Information -> Profile Directory:
Windows: Show Folder; Linux: Open Directory; Mac: Show in Finder - http://kb.mozillazine.org/Profile_folder_-_Firefox
Thanks Philipp, and Cor-el, reinstalling solved the problem.
I really appreciate the help!
Thank you Cor-el. Your solution has solved my issue, that has plagued me for the past couple of months, off and on. This occured only in Firefox Beta (Currently using 61.0b13) for Android, and not in the official release for Firefox Android. I did not test if I was having this issue in Firefox Nightly. By renaming Cert9.db to Cert9.db.old not only did it fix my issue, it seems to have sped up my load times on Https connections, namely Google in general as that was my home page, and my search engine. I will post here if this issue reoccurs, after this fix, for further investigation. For those with rooted Android phones (you can not access the data/data folders if your not rooted), the profile address is as follows, to rename the file: /data/data/org.mozilla.firefox_beta/files/mozilla/xxxxxxxx.default/cert9.db