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I have been trying to connect to facebook and youtube but it says i have an insecure connection....

  • 7 wotmołwy
  • 15 ma tutón problem
  • 1 napohlad
  • Poslednja wotmołwa wot philipp

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The owner of www.facebook.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.

This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox may only connect to it securely. As a result, it is not possible to add an exception for this certificate.

www.facebook.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

P.S i have avg security system

The owner of www.facebook.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website. This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox may only connect to it securely. As a result, it is not possible to add an exception for this certificate. www.facebook.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 P.S i have avg security system

Wšě wotmołwy (7)

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There is security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connections and send their own certificate.

How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites

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Open AVG.

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Thank you for the quick reply but i cant click anything in expert settings unless i have pro....

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I checked it but it still the sites still isnt working

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hi, can you 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!

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https://www.youtube.com/

Peer’s Certificate issuer is not recognized.

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

Certificate chain:

-----BEGIN CERTIFICATE-----
MIIDIzCCAgsCBFhVVlcwDQYJKoZIhvcNAQELBQAwQDEuMCwGA1UEAwwlQ2lzY28g
VW1icmVsbGEgU2Vjb25kYXJ5IFN1YkNBIG1pYS1TRzEOMAwGA1UECgwFQ2lzY28w
HhcNMTcwMTA1MTk1ODI5WhcNMTcwMTEwMTk1ODI5WjBsMQswCQYDVQQGEwJVUzET
MBEGA1UECAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNU2FuIEZyYW5jaXNjbzEWMBQG
A1UECgwNT3BlbkROUywgSW5jLjEYMBYGA1UEAwwPd3d3LnlvdXR1YmUuY29tMIIB
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XbSpd67THk0KE/bQnP7zdecq4bIF8WQedgZ9HwezB4XbwS3mFs8C
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIID3TCCAsWgAwIBAgIRAIQqk/i7Xkm1pFcpPaAa3RswDQYJKoZIhvcNAQELBQAw
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EReKndvPpj3bvfUErEkkWK+X/hoydsBj9C3kP1/DV3LM
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIIEgTCCA2mgAwIBAgIJBEhjqxVGRY1yMA0GCSqGSIb3DQEBCwUAMDExDjAMBgNV
BAoTBUNpc2NvMR8wHQYDVQQDExZDaXNjbyBVbWJyZWxsYSBSb290IENBMB4XDTE2
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4FAJCjB6fkivL5SvmDWCB1ZeiRc2ud5qm/II0OuGdtX+mo0/Lo9Lh9Tdg2LxUxEn
7cAtMK0=
-----END CERTIFICATE-----

Wot cor-el změnjeny

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hi, it appears that you or your network uses cisco/opends umbrella to monitor secure connections. apparently you need to install their certificate first in order for this to work in browsers: https://support.opendns.com/hc/en-us/articles/227987007-Block-Page-Errors-Installing-the-Cisco-Root-CA

if after installing the cert you are still not be able to access the pages, i suggest you get in contact with their support at https://support.opendns.com/ with further inquiries about this...