This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

youtube & google did not load

  • 1 reply
  • 1 has this problem
  • 1 view
  • Last reply by FredMcD

Ralph Keßler
Ralph Keßler
more options

How can I fix this problem, so that i can load the Youtube Website agine? Your FAQ hints doesn´t work, i use avast Antivirus, but then i switch of the active Web secure the problem exist farther. The same is with the Google Website! Hope you can give me a soulution which works. Thanks. Dear sincirly Ralph Kessler

ww.youtube.com verwendet ein ungültiges Sicherheitszertifikat. Dem Zertifikat wird nicht vertraut, weil das Aussteller-Zertifikat unbekannt ist. Der Server sendet eventuell nicht die richtigen Zwischen-Zertifikate. Eventuell muss ein zusätzliches Stammzertifikat importiert werden. Fehlercode: SEC_ERROR_UNKNOWN_ISSUER

How can I fix this problem, so that i can load the Youtube Website agine? Your FAQ hints doesn´t work, i use avast Antivirus, but then i switch of the active Web secure the problem exist farther. The same is with the Google Website! Hope you can give me a soulution which works. Thanks. Dear sincirly Ralph Kessler ww.youtube.com verwendet ein ungültiges Sicherheitszertifikat. Dem Zertifikat wird nicht vertraut, weil das Aussteller-Zertifikat unbekannt ist. Der Server sendet eventuell nicht die richtigen Zwischen-Zertifikate. Eventuell muss ein zusätzliches Stammzertifikat importiert werden. Fehlercode: SEC_ERROR_UNKNOWN_ISSUER

All Replies (1)

FredMcD
FredMcD
more options

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

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

http://kb.mozillazine.org/Error_loading_websites


  • 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