hi, in regards to the secure connections errors - first please make sure that the date, time & timezone are set correctly on your system. if this doesn't solve the issue (or it is already set properly), a solution depends on the individual circumstances:

• what is the error code shown when you click on advanced on that error page?
• please also 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!

You can check if there is more detail available about the issuer of the certificate.

• click the "Advanced" button show more detail
• click the blue SEC_ERROR_UNKNOWN_ISSUER message to show the certificate chain
• click "Copy text to clipboard" and paste the base64 certificate chain text in a reply

If clicking the SEC_ERROR_UNKNOWN_ISSUER text doesn't provide the certificate chain then try these steps to inspect the certificate.

• open the Server tab in the Certificate Manager
  • Options/Preferences -> Privacy & Security
    Certificates: View Certificates -> Servers: "Add Exception"
• paste the URL of the website (https://xxx.xxx) in it's Location field.

Let Firefox retrieve the certificate -> "Get Certificate"

• click the "View" button and inspect the certificate

You can see detail like the issuer of the certificate and intermediate certificates in the Details tab.

Firefox updated and became totally unusable. Any possible fixes? Subject: Firefox updated and died and appears unfixable. Firefox updated and died and appears unfixable. When upgrading to 6.0.0 it deleted all bookmarks, and made nearly all websites inaccesible. INCLUDING support.mozilla.com and youtube. Also it refuses to install add-ons. Upgrading to 6.0.01 changed nothing. With 6.0.02, youtube could be accessed for like an hour, then back to dead. No Exceptions can be added

>>> philipp Jun 13, 2018, 2:54:51 AM

hi, in regards to the secure connections errors - first please make sure that the date, time & timezone are set correctly on your system. if this doesn't solve the issue (or it is already set properly), a solution depends on the individual circumstances:

   what is the error code shown when you click on advanced on that error page?
   please also 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!

==

Reply:

The time is perfectly fine. Also, how would a bad time delete bookmarks, as the upgrade did?

As for what it says:

1/ support.mozilla.com 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://support.mozilla.com/ Peer’s Certificate issuer is not recognized. HTTP Strict Transport Security: false HTTP Public Key Pinning: false Certificate chain:

MIIETDCCAzSgAwIBAgIQS+C57f1YE06yTvAnZgL2GzANBgkqhkiG9w0BAQsFADCB hDE7MDkGA1UECwwyZ2VuZXJhdGVkIGJ5IGF2YXN0ISBhbnRpdmlydXMgZm9yIFNT TC9UTFMgc2Nhbm5pbmcxHzAdBgNVBAoMFmF2YXN0ISBXZWIvTWFpbCBTaGllbGQx JDAiBgNVBAMMG2F2YXN0ISBXZWIvTWFpbCBTaGllbGQgUm9vdDAeFw0xNzA5MjAw MDAwMDBaFw0xODEwMzExMjAwMDBaMIGGMQswCQYDVQQGEwJVUzETMBEGA1UECBMK Q2FsaWZvcm5pYTEWMBQGA1UEBxMNTW91bnRhaW4gVmlldzEbMBkGA1UEChMSTW96 aWxsYSBGb3VuZGF0aW9uMQ8wDQYDVQQLEwZXZWJPcHMxHDAaBgNVBAMTE3N1cHBv cnQubW96aWxsYS5vcmcwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC4 aAWrZYW+XeuZqLCYdoME/QoCMUwLYKZBunagHsUcCTew2SX7MfraNeagOoEuLL2N GAkfyYStJsFMFAqzwyNGV85kwnWtCs4gdOZwIg3Zjv9koW1aJs33vHKiiAcX0H/Y EvzMRzvzUGSNo4j001pW04qkujQ0p4r94XlokzbupEFcqH/P8lBSxl0GmHFuBO51 nVFa/1/527K/avs2Hzh0m6hTK4KtEeFOhb8pOc2tc0NqLfZbQ80I0Radq04lSEUW 9mG8IzVnpEzfN27X4fVlAknVtZM/7Yz0TCpy/wXXJlFiGQkuT9i4YXCEdTF8IU3j gNfeE2qBlYvHYGqnkxFPAgMBAAGjgbUwgbIwHwYDVR0jBBgwFoAUGmHfT0Xwnoeh yUhdsOz3OKFHWigwHQYDVR0OBBYEFKNcAPirCasC5wR4TwpVz9cQH1ReMDMGA1Ud EQQsMCqCE3N1cHBvcnQubW96aWxsYS5vcmeCE3N1cHBvcnQubW96aWxsYS5jb20w DgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAM BgNVHRMBAf8EAjAAMA0GCSqGSIb3DQEBCwUAA4IBAQC4xeIvtM2ycLo9D9ZAxkfA za6dbIbZ+AJWDrNadGKb5fcOhRs4FeYgEOwTOFMxuX99XzE0ELS/kd97eJRlO7g+ BLmLlaU1V6fFJ7I8RnZTNYwDWKL03JoWmvtkIxOsyztjvWcfR8Xznef0FrzdB4g1 M2qkcYvnuo7fj8TQGc2iA3tfdv+m2/elDDmTUW7CMTpVbXz0gH3YpV0OvITfVlSS 3mYIHVoZiQ+48kGAeC8Q+tG31wrpk+yWK4ndd/5TsFA5svxZdM7y3WRuvcJky9tq 6seZLRcP6Q/SxsmvvRxIqfPOsqb60fjf36DylVDSzC3xORzyFHt8eqpPV2Vy10yq

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2/ www.youtube.com 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://www.youtube.com/ Peer’s Certificate issuer is not recognized. HTTP Strict Transport Security: true HTTP Public Key Pinning: true Certificate chain:

MIIHCDCCBfCgAwIBAgIQF0f/GodWTUapRgvjNyNfBTANBgkqhkiG9w0BAQsFADCB hDE7MDkGA1UECwwyZ2VuZXJhdGVkIGJ5IGF2YXN0ISBhbnRpdmlydXMgZm9yIFNT TC9UTFMgc2Nhbm5pbmcxHzAdBgNVBAoMFmF2YXN0ISBXZWIvTWFpbCBTaGllbGQx JDAiBgNVBAMMG2F2YXN0ISBXZWIvTWFpbCBTaGllbGQgUm9vdDAeFw0xODA1MjMw OTU4MTdaFw0xODA4MTUwOTA4MDBaMGYxCzAJBgNVBAYTAlVTMRMwEQYDVQQIDApD YWxpZm9ybmlhMRYwFAYDVQQHDA1Nb3VudGFpbiBWaWV3MRMwEQYDVQQKDApHb29n bGUgTExDMRUwEwYDVQQDDAwqLmdvb2dsZS5jb20wWTATBgcqhkjOPQIBBggqhkjO PQMBBwNCAARgSeK9gG6W93v1YKayp6tKl2mi1BfXhl+xr02V/BHWA0RqvhKO/mCV kJfToO4L6XN7BX+VgtPE6aQsNavm7IfQo4IEXDCCBFgwEwYDVR0lBAwwCgYIKwYB BQUHAwEwDgYDVR0PAQH/BAQDAgeAMIID4QYDVR0RBIID2DCCA9SCDCouZ29vZ2xl LmNvbYINKi5hbmRyb2lkLmNvbYIWKi5hcHBlbmdpbmUuZ29vZ2xlLmNvbYISKi5j bG91ZC5nb29nbGUuY29tghQqLmRiODMzOTUzLmdvb2dsZS5jboIGKi5nLmNvgg4q LmdjcC5ndnQyLmNvbYIWKi5nb29nbGUtYW5hbHl0aWNzLmNvbYILKi5nb29nbGUu Y2GCCyouZ29vZ2xlLmNsgg4qLmdvb2dsZS5jby5pboIOKi5nb29nbGUuY28uanCC DiouZ29vZ2xlLmNvLnVrgg8qLmdvb2dsZS5jb20uYXKCDyouZ29vZ2xlLmNvbS5h dYIPKi5nb29nbGUuY29tLmJygg8qLmdvb2dsZS5jb20uY2+CDyouZ29vZ2xlLmNv bS5teIIPKi5nb29nbGUuY29tLnRygg8qLmdvb2dsZS5jb20udm6CCyouZ29vZ2xl LmRlggsqLmdvb2dsZS5lc4ILKi5nb29nbGUuZnKCCyouZ29vZ2xlLmh1ggsqLmdv b2dsZS5pdIILKi5nb29nbGUubmyCCyouZ29vZ2xlLnBsggsqLmdvb2dsZS5wdIIS Ki5nb29nbGVhZGFwaXMuY29tgg8qLmdvb2dsZWFwaXMuY26CFCouZ29vZ2xlY29t bWVyY2UuY29tghEqLmdvb2dsZXZpZGVvLmNvbYIMKi5nc3RhdGljLmNugg0qLmdz dGF0aWMuY29tggoqLmd2dDEuY29tggoqLmd2dDIuY29tghQqLm1ldHJpYy5nc3Rh dGljLmNvbYIMKi51cmNoaW4uY29tghAqLnVybC5nb29nbGUuY29tghYqLnlvdXR1 YmUtbm9jb29raWUuY29tgg0qLnlvdXR1YmUuY29tghYqLnlvdXR1YmVlZHVjYXRp b24uY29tggcqLnl0LmJlggsqLnl0aW1nLmNvbYIaYW5kcm9pZC5jbGllbnRzLmdv b2dsZS5jb22CC2FuZHJvaWQuY29tghtkZXZlbG9wZXIuYW5kcm9pZC5nb29nbGUu Y26CHGRldmVsb3BlcnMuYW5kcm9pZC5nb29nbGUuY26CBGcuY2+CBmdvby5nbIIU Z29vZ2xlLWFuYWx5dGljcy5jb22CCmdvb2dsZS5jb22CEmdvb2dsZWNvbW1lcmNl LmNvbYIYc291cmNlLmFuZHJvaWQuZ29vZ2xlLmNuggp1cmNoaW4uY29tggp3d3cu Z29vLmdsggh5b3V0dS5iZYILeW91dHViZS5jb22CFHlvdXR1YmVlZHVjYXRpb24u Y29tggV5dC5iZTAdBgNVHQ4EFgQUZmrq2LpWByDXQuJ24YdSX9pM5wgwDAYDVR0T AQH/BAIwADAfBgNVHSMEGDAWgBQaYd9PRfCeh6HJSF2w7Pc4oUdaKDANBgkqhkiG 9w0BAQsFAAOCAQEAdp0c5eW8EdG0Oeb91Y1bBV3F0Wj+2kNxcitA/0MpGaF9ZfK2 O6xQFpc9xlfw8IQEbPfjQEoVtzehRHTmeuAmRpa8ZNARdOLfLX9O31wzHbdMF7Ex 7+bE2scLRYRwZ0CYjTCOuUBaMdQzS+VnCAIoak/HfU2TXm0Zg5Lxft+yH6z2hdkV +XQjY22L8nPakiLDVtV8R6WXJwkPsnB2/1kgipxelJZk2pDNGp2hZGtwJ8VZsJVI eBHmEg8DS/Gjh6qHqLmKkLbEDPmFz/MERIYBbTOYx+A5rgV2EDhht5eKs8wsoTld aPcSQE5fbVFyd82vKRu8dNt0s7+OA/vIdIltGA==

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Note the interesting "False" in one case, and "true" in the other, while the snapshots are taken at maybe a 15 seconds interval.

I have Avast antivirus btw, And have used the combination Firefox and Avast with no problems for the last 10 years or so. Again, absolutely nothing else seems wrong, aside Firefox being dead.

===================

Firefox updated and became totally unusable. Any possible fixes? cor-el Jun 13, 2018, 1:21:33 PM You can check if there is more detail available about the issuer of the certificate.

   click the "Advanced" button show more detail
   click the blue SEC_ERROR_UNKNOWN_ISSUER message to show the certificate chain
   click "Copy text to clipboard" and paste the base64 ...etc

Please see the reply above.

Oh and I forgot to add, not only did the update render Firefox unusable and delete all my bookmarks, it also deleted all my Firefox add-ons, and probably extensions, etc... Any way to retrieve all that?

Issuer: avast! Web/Mail Shield Root, avast! Web/Mail Shield

Avast is intercepring your traffic using fake cert. So that's the error msg: Peer’s Certificate issuer is not recognized.

firefoxproblems1 said

Oh and I forgot to add, not only did the update render Firefox unusable and delete all my bookmarks, it also deleted all my Firefox add-ons, and probably extensions, etc... Any way to retrieve all that?

Go to about:profiles and check, how many profiles you have.

You can check if you have an "Old Firefox Data" folder on the desktop in case the Refresh feature in Firefox has been used and a new profile has been created.

• https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems
• https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile