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I can't visit any website on firefox (except mozilla.org)it says your connection is not secure ,is there any issue with my antivirus (I am using Avira) ??

Posted

For Example - Google

https://www.google.com/?gws_rd=ssl Peer’s Certificate issuer is not recognized. HTTP Strict Transport Security: false HTTP Public Key Pinning: true Certificate chain:

-----BEGIN CERTIFICATE----- MIIC2jCCAcKgAwIBAgIRAIAuhPNj2X76wUA06bdCCtcwDQYJKoZIhvcNAQELBQAw KzELMAkGA1UEBhMCRU4xHDAaBgNVBAMME0FkZ3VhcmQgUGVyc29uYWwgQ0EwHhcN MTgxMTI3MTQwMjAwWhcNMTkwMjE5MTQwMjAwWjBoMQswCQYDVQQGEwJVUzETMBEG A1UECAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzETMBEGA1UE CgwKR29vZ2xlIExMQzEXMBUGA1UEAwwOd3d3Lmdvb2dsZS5jb20wgZ8wDQYJKoZI hvcNAQEBBQADgY0AMIGJAoGBAMRPkrHiQNmJar9lhsiMbbjdew/O/aZCh/JtJF/U CARv5tEdQhghjhx8KuoO4F4PJ3o+LqSk0FrODNPHwA6xrfkfBAjjWuhOSw85OLrw p5NxEIZvINaFn/SgwaPjBaOdLTa9xt1VxqQUoBGH9kI5nae7HGqP230j48VBbOQ8 rSCpAgMBAAGjQDA+MBkGA1UdEQQSMBCCDnd3dy5nb29nbGUuY29tMAwGA1UdEwEB /wQCMAAwEwYDVR0lBAwwCgYIKwYBBQUHAwEwDQYJKoZIhvcNAQELBQADggEBABq4 BSIFuUlUrQxUC76v8YqPq4pJXQqiVuXIccDuiIxcvC3AwfGzQ0GLgryRFa2bDPXR UFA1n04fFvcpVT5drjNyu346ZWQVn9/yIfDkHi8eu4L7RO52ibVMSDHPObvnsOq6 Da8vUoH7eoI5kzvkOC4R4THqagsbBA77/v2XYGC8tdYz6tV6kU75W4QQvXFtDh1s vs+22GS4y9mJijrTf9AVeYSovFwLs9PYhg0GIKrgdVcIEmqFHSeHW75YdGYzR0Qo zQ6E8bCA/OAcyFAepVUedBJ3wgT8L3dJ5rnyWr9VTPJI7TcHLHoSmPWUd1nB2dqF eKgkCF1720qN4JM9UMM= -----END CERTIFICATE-----
For Example - Google https://www.google.com/?gws_rd=ssl Peer’s Certificate issuer is not recognized. HTTP Strict Transport Security: false HTTP Public Key Pinning: true Certificate chain: -----BEGIN CERTIFICATE----- MIIC2jCCAcKgAwIBAgIRAIAuhPNj2X76wUA06bdCCtcwDQYJKoZIhvcNAQELBQAw KzELMAkGA1UEBhMCRU4xHDAaBgNVBAMME0FkZ3VhcmQgUGVyc29uYWwgQ0EwHhcN MTgxMTI3MTQwMjAwWhcNMTkwMjE5MTQwMjAwWjBoMQswCQYDVQQGEwJVUzETMBEG A1UECAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzETMBEGA1UE CgwKR29vZ2xlIExMQzEXMBUGA1UEAwwOd3d3Lmdvb2dsZS5jb20wgZ8wDQYJKoZI hvcNAQEBBQADgY0AMIGJAoGBAMRPkrHiQNmJar9lhsiMbbjdew/O/aZCh/JtJF/U CARv5tEdQhghjhx8KuoO4F4PJ3o+LqSk0FrODNPHwA6xrfkfBAjjWuhOSw85OLrw p5NxEIZvINaFn/SgwaPjBaOdLTa9xt1VxqQUoBGH9kI5nae7HGqP230j48VBbOQ8 rSCpAgMBAAGjQDA+MBkGA1UdEQQSMBCCDnd3dy5nb29nbGUuY29tMAwGA1UdEwEB /wQCMAAwEwYDVR0lBAwwCgYIKwYBBQUHAwEwDQYJKoZIhvcNAQELBQADggEBABq4 BSIFuUlUrQxUC76v8YqPq4pJXQqiVuXIccDuiIxcvC3AwfGzQ0GLgryRFa2bDPXR UFA1n04fFvcpVT5drjNyu346ZWQVn9/yIfDkHi8eu4L7RO52ibVMSDHPObvnsOq6 Da8vUoH7eoI5kzvkOC4R4THqagsbBA77/v2XYGC8tdYz6tV6kU75W4QQvXFtDh1s vs+22GS4y9mJijrTf9AVeYSovFwLs9PYhg0GIKrgdVcIEmqFHSeHW75YdGYzR0Qo zQ6E8bCA/OAcyFAepVUedBJ3wgT8L3dJ5rnyWr9VTPJI7TcHLHoSmPWUd1nB2dqF eKgkCF1720qN4JM9UMM= -----END CERTIFICATE-----

Chosen solution

Hi AP777, thank you for sharing the certificate. When I decode it, it has this

Issuer CN = Adguard Personal CA,C = EN

which suggests a program named Adguard Personal is intercepting all of your browser requests in Firefox. If you trust that program to read all your browsing, please check their documentation on how to set up Firefox to work with their fake site certificates (fake certificates are needed for a "man in the middle" to read your browsing).

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Additional System Details

Application

  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:64.0) Gecko/20100101 Firefox/64.0

More Information

FredMcD
  • Top 10 Contributor
4259 solutions 59635 answers
There is security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connection certificates and send their own. https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can https://support.mozilla.org/en-US/kb/firefox-and-other-browsers-cant-load-websites https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message https://support.mozilla.org/en-US/kb/connection-untrusted-error-message [https://support.mozilla.org/en-US/kb/websites-dont-load-troubleshoot-and-fix-errors?redirectlocale=en-US&redirectslug=Error+loading+web+sites Websites don't load - troubleshoot and fix error messages] http://kb.mozillazine.org/Error_loading_websites

Question owner

I use Avira . But then how to solve this issue ?

I use Avira . But then how to solve this issue ?
jscher2000
  • Top 10 Contributor
8772 solutions 71718 answers

Chosen Solution

Hi AP777, thank you for sharing the certificate. When I decode it, it has this

Issuer CN = Adguard Personal CA,C = EN

which suggests a program named Adguard Personal is intercepting all of your browser requests in Firefox. If you trust that program to read all your browsing, please check their documentation on how to set up Firefox to work with their fake site certificates (fake certificates are needed for a "man in the middle" to read your browsing).

Hi AP777, thank you for sharing the certificate. When I decode it, it has this Issuer CN = '''Adguard Personal CA''',C = EN which suggests a program named Adguard Personal is intercepting all of your browser requests in Firefox. If you trust that program to read all your browsing, please check their documentation on how to set up Firefox to work with their fake site certificates (fake certificates are needed for a "man in the middle" to read your browsing).

Question owner

Dear jscher2000, I am really grateful for your efforts. I restarted the program suggested in your reply as well as the device and it worked. I am very much thankful to you.

Dear jscher2000, I am really grateful for your efforts. I restarted the program suggested in your reply as well as the device and it worked. I am very much thankful to you.