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SEC_ERROR_UNKNOWN_ISSUER

  • 3 vastust
  • 3 on selline probleem
  • 3 views
  • Viimati vastas philipp

Baloota
Baloota
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I downloaded Firefox Quantum and when I try to open www.google.com I get this error: SEC_ERROR_UNKNOWN_ISSUER My connection is working perfectly on any other browser, and I really want to try the new Firefox. Thank you!

I downloaded Firefox Quantum and when I try to open www.google.com I get this error: SEC_ERROR_UNKNOWN_ISSUER My connection is working perfectly on any other browser, and I really want to try the new Firefox. Thank you!

All Replies (3)

philipp
philipp
  • Moderator
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hi, probably some third-party software on your system or network is intercepting secure connections. 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!

Baloota
Baloota Küsimuse esitaja
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philipp said

hi, probably some third-party software on your system or network is intercepting secure connections. 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!

Hey! this is what I get: https://www.fxp.co.il/

Peer’s Certificate issuer is not recognized.

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

Certificate chain:

BEGIN CERTIFICATE-----

MIIDDTCCAfWgAwIBAgIRAMHMsy86V6sn+5aw+Bv7ugswDQYJKoZIhvcNAQELBQAw KzELMAkGA1UEBhMCRU4xHDAaBgNVBAMME0FkZ3VhcmQgUGVyc29uYWwgQ0EwHhcN MTcwODE1MDAwMDAwWhcNMTgwMjIxMjM1OTU5WjBsMSEwHwYDVQQLExhEb21haW4g Q29udHJvbCBWYWxpZGF0ZWQxITAfBgNVBAsTGFBvc2l0aXZlU1NMIE11bHRpLURv bWFpbjEkMCIGA1UEAxMbc3NsNTEyOTcwLmNsb3VkZmxhcmVzc2wuY29tMIGfMA0G CSqGSIb3DQEBAQUAA4GNADCBiQKBgQDVOKY1y9cuz4DWxb864p+ebwzl3gXOcLT9 2XSJy8lq29hHMh7yk/Kbun7IaW3I8ISXy5YkQDQ4Ukawy4OIG/Lqj/mv33XWIvbL JiEIS5fpWNnyXvhDvLRbPmJtAP1nJJd0vSqIXlqhxZuHwz9El55pzvln/jfuS7k0 q1KKFZ0A8wIDAQABo28wbTA+BgNVHREENzA1ghtzc2w1MTI5NzAuY2xvdWRmbGFy ZXNzbC5jb22CCyouZnhwLmNvLmlsgglmeHAuY28uaWwwDAYDVR0TAQH/BAIwADAd BgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDQYJKoZIhvcNAQELBQADggEB ADAgTXEEUzFS4u9Jo87IfAZF2Z3unV9kCyPdl1wjtQntplg2xbTMeIAQZOHma8pn jP/WtOXRiajwTS7d4z+lyQbddMf2PqUtqFMutXYDdRw0803Tez3mBjcBp/d9vScZ gH8I6lhvoESxSIdW12pjsen1Vmihs2W42bbcj3V3Uyq5YKqS527eVdnG8I30wC9X 3Ofq3hC2OKUKCqv2TTaDN/dpH+xGj8zN7USfrMXINVgp1sTHZ5L4YuMk/cforqNA htOe/mHqFvRYkoHT8tQ6oJtI8iq4Dj9ijyU0c5fZj0UQMAbYqM9bAJC6Na/tTZ5z nHNy83hGTEBDn71YX0aufno=

END CERTIFICATE-----
philipp
philipp
  • Moderator
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thank you. it appears like your secure connections are intercepted by adguard. please either uninstall that software from your device and use an integrated adblocker like https://addons.mozilla.org/firefox/addon/ublock-origin/ or see https://kb.adguard.com/en/windows/solving-problems/connection-not-trusted