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Links like https://youtu.be/S4fXBA2UOr0 doesn't open

  • 5 Antworten
  • 1 hat dieses Problem
  • 159 Aufrufe
  • Letzte Antwort von Pj

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Links like https://youtu.be/S4fXBA2UOr0 doesn't open. Firefox opens the page with message: Connection doesn't secure. Certificate is unknown. But this is simple YouTube and the same links has no problems with opening in Chrome or IE-11 The problem is only in FF. I'm the author of YouTube channel that is why I want this kind of links to be opened in any browser. I have Firefox Quantum 64.0.2 64bit, Russian lang. Is it my computer's problem or it is common problem of all FF users? Do you have any recommendation what I can do?

Angefügte Screenshots

Ausgewählte Lösung

https://www.youtube.com/watch?v=S4fXBA2UOr0&feature=youtu.be (1) Почему лояльность сотрудников важна? Эпизод #3 - YouTube

Why is employee loyalty important? Episode # 3

I had no problem with the link.


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

Websites don't load - troubleshoot and fix error messages

http://kb.mozillazine.org/Error_loading_websites


  • MOZILLA_PKIX_ERROR_MITM_DETECTED
  • uses an invalid security certificate SSL_ERROR_BAD_CERT_DOMAIN
  • configured their website improperly

How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER

Diese Antwort im Kontext lesen 👍 1

Alle Antworten (5)

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Looks like the site was banned or removed if they violated Youtube TOS.

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Ausgewählte Lösung

https://www.youtube.com/watch?v=S4fXBA2UOr0&feature=youtu.be (1) Почему лояльность сотрудников важна? Эпизод #3 - YouTube

Why is employee loyalty important? Episode # 3

I had no problem with the link.


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

Websites don't load - troubleshoot and fix error messages

http://kb.mozillazine.org/Error_loading_websites


  • MOZILLA_PKIX_ERROR_MITM_DETECTED
  • uses an invalid security certificate SSL_ERROR_BAD_CERT_DOMAIN
  • configured their website improperly

How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER

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What site was banned do you mean? Look at the screenshot i've sent: in the address line is youtu.be address (link to YouTube). This is standard YouTube link.It was given to me by YouTube itself as a short link to my video. And FireFox claims: certificate is unknown. I'm sure it means youtu.be certificate is unknown. Am i right? In Chrome or IE there is no problem with opening this link.

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No problems here with the youtu.be link.

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 error text (SEC_ERROR_UNKNOWN_ISSUER) to show the certificate chain
  • click "Copy text to clipboard" and paste the base64 certificate chain text in a reply

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

  • open the Servers 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.

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Oleg-1999 said

Links like https://youtu.be/S4fXBA2UOr0 doesn't open. Firefox opens the page with message: Connection doesn't secure. Certificate is unknown...
https://www.youtube.com/watch?v=S4fXBA2UOr0


Worked ok for me in FF 65.0. Did you get version 65.0?


~Pj