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Firefox keeps getting an "insecure connection" page, and flagging sites that are fine with invalids certificate, etc. How can I fix this?

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  • Last reply by philipp

JimmySchlimm
JimmySchlimm
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https://www.google.com/search?q=firefox+not+able+to+connect+with+https+website&ie=utf-8&oe=utf-8&client=firefox-b

Peer’s Certificate issuer is not recognized.

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

Certificate chain:

BEGIN CERTIFICATE-----

MIIDaDCCAlCgAwIBAgIRAMrohqzy7KiW8F9LrkmXw3UwDQYJKoZIhvcNAQELBQAw KzELMAkGA1UEBhMCRU4xHDAaBgNVBAMME0FkZ3VhcmQgUGVyc29uYWwgQ0EwHhcN MTcwODAyMTkyODIzWhcNMTcxMDI1MTkyMzAwWjBoMQswCQYDVQQGEwJVUzETMBEG A1UECAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzETMBEGA1UE CgwKR29vZ2xlIEluYzEXMBUGA1UEAwwOd3d3Lmdvb2dsZS5jb20wggEiMA0GCSqG SIb3DQEBAQUAA4IBDwAwggEKAoIBAQCpWLajThsxoAX7aFy+Epem2bUqYRBL7WFZ EW5XAXnBV72V5izDmI6ZdND0lL6W39GV54m+P6GDnG+mQaHudAk7Yl52TCbCBFUy vpw4mOchNGELOxlKhvIiDoM9w2gpEqXjbzGH2A4AXfYPETuGBy62n6IUpVOYjOMQ rM9njUK7eMU3RbnruF2lPgC5K6fGysNdA3PHFWPkGokMf2/hGy43TTh82zxuusCG X8WgV8HBqCBTcGIaUyMfiNW7BnE209jyofoRuIMthpBp7+MviDTD8d9Az9qKESLZ J3RwXT2IdIhnpEJAWdavulCOgg0Z5K1v9/CuHnJh+rgcQsXktUbRAgMBAAGjSjBI MBkGA1UdEQQSMBCCDnd3dy5nb29nbGUuY29tMAwGA1UdEwEB/wQCMAAwHQYDVR0l BBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMA0GCSqGSIb3DQEBCwUAA4IBAQBtfng3 hIeSIUjjUQzHMNYx2j4QXVpNFxex+2y6FXwOj1g5kGBUAV1HchRPUnZUP7jYLP86 P+mKxGW/a6XSUVDp3h/KYEivHS9ZA5LDXXE0vMJ1wjIY7Lq4Q6b71lMl2TZTgQPg 2dNSc54YzL1QU9YMoV67ZbmPMR/auNgbq2lXVpjQm40Akz/HaU3HROT71AwwACRC 3RkyOyW7qIPCRWD/7+p9UvUl1gqNyaCU+7KAOvABLtmXyYT+hC9EJXYF2vI2fJFb 6muELNiJrBwRZjXYrBHYYSW7Mj/S+A3pKVU0hZG/YhjSmOLGenO7OaGT3+6+Bdzk 9mrRrOnJPyAyj0zl

END CERTIFICATE-----
https://www.google.com/search?q=firefox+not+able+to+connect+with+https+website&ie=utf-8&oe=utf-8&client=firefox-b Peer’s Certificate issuer is not recognized. HTTP Strict Transport Security: false HTTP Public Key Pinning: true Certificate chain: -----BEGIN CERTIFICATE----- MIIDaDCCAlCgAwIBAgIRAMrohqzy7KiW8F9LrkmXw3UwDQYJKoZIhvcNAQELBQAw KzELMAkGA1UEBhMCRU4xHDAaBgNVBAMME0FkZ3VhcmQgUGVyc29uYWwgQ0EwHhcN MTcwODAyMTkyODIzWhcNMTcxMDI1MTkyMzAwWjBoMQswCQYDVQQGEwJVUzETMBEG A1UECAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzETMBEGA1UE CgwKR29vZ2xlIEluYzEXMBUGA1UEAwwOd3d3Lmdvb2dsZS5jb20wggEiMA0GCSqG SIb3DQEBAQUAA4IBDwAwggEKAoIBAQCpWLajThsxoAX7aFy+Epem2bUqYRBL7WFZ EW5XAXnBV72V5izDmI6ZdND0lL6W39GV54m+P6GDnG+mQaHudAk7Yl52TCbCBFUy vpw4mOchNGELOxlKhvIiDoM9w2gpEqXjbzGH2A4AXfYPETuGBy62n6IUpVOYjOMQ rM9njUK7eMU3RbnruF2lPgC5K6fGysNdA3PHFWPkGokMf2/hGy43TTh82zxuusCG X8WgV8HBqCBTcGIaUyMfiNW7BnE209jyofoRuIMthpBp7+MviDTD8d9Az9qKESLZ J3RwXT2IdIhnpEJAWdavulCOgg0Z5K1v9/CuHnJh+rgcQsXktUbRAgMBAAGjSjBI MBkGA1UdEQQSMBCCDnd3dy5nb29nbGUuY29tMAwGA1UdEwEB/wQCMAAwHQYDVR0l BBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMA0GCSqGSIb3DQEBCwUAA4IBAQBtfng3 hIeSIUjjUQzHMNYx2j4QXVpNFxex+2y6FXwOj1g5kGBUAV1HchRPUnZUP7jYLP86 P+mKxGW/a6XSUVDp3h/KYEivHS9ZA5LDXXE0vMJ1wjIY7Lq4Q6b71lMl2TZTgQPg 2dNSc54YzL1QU9YMoV67ZbmPMR/auNgbq2lXVpjQm40Akz/HaU3HROT71AwwACRC 3RkyOyW7qIPCRWD/7+p9UvUl1gqNyaCU+7KAOvABLtmXyYT+hC9EJXYF2vI2fJFb 6muELNiJrBwRZjXYrBHYYSW7Mj/S+A3pKVU0hZG/YhjSmOLGenO7OaGT3+6+Bdzk 9mrRrOnJPyAyj0zl -----END CERTIFICATE-----

Chosen solution

hi, unfortunately this will be caused by adguard - either disable/uninstall it and use a built-in adblocking addon in firefox like https://addons.mozilla.org/firefox/addon/ublock-origin/ or follow adguard's instructions how to set it up so that its certificate is trusted by firefox: https://kb.adguard.com/en/windows/solving-problems/connection-not-trusted

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All Replies (1)

philipp
philipp
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Chosen Solution

hi, unfortunately this will be caused by adguard - either disable/uninstall it and use a built-in adblocking addon in firefox like https://addons.mozilla.org/firefox/addon/ublock-origin/ or follow adguard's instructions how to set it up so that its certificate is trusted by firefox: https://kb.adguard.com/en/windows/solving-problems/connection-not-trusted