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When trying to access Airbnb I get: The owner of www.airbnb.com has configured their website improperly. This site uses HTTP Strict Transport Security (HSTS)

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When I try to access the AirBnB site from my Mac laptop, I get the response below. No problem accessing other sites, and AirBnb says they cannot help me.

I'm not very tech savvy, so I'd appreciate any advice to be step by step. Much appreciated!


Your connection is not secure

The owner of www.airbnb.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.

All Replies (2)

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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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Being blocked from connecting to a "blogger" blog.

Absolutely not acceptable that FF prevents a user from doing what he desires to do.

I'm not using any 3rd party security stuff that would demand certificates.