![Firefox logo](https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/products/2020-04-14-08-36-13-8dda6f.png)
why can't I get to msn.com?
Firefox detected a potential security threat and did not continue to www.msn.com because this website requires a secure connection.
I can get there with Microsoft Edge and Internet Explorer.
Did Not Connect: Potential Security Issue
Firefox detected a potential security threat and did not continue to www.msn.com because this website requires a secure connection.
What can you do about it?
www.msn.com has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site.
The issue is most likely with the website, and there is nothing you can do to resolve it.
If you are on a corporate network or using anti-virus software, you can reach out to the support teams for assistance. You can also notify the website’s administrator about the problem.
Semua Balasan (2)
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
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"
- Options/Preferences -> Privacy & Security
- 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 find detail like the issuer of the certificate and intermediate certificates in the Details tab.