Warning: Potential Security Risk Ahead
Hello, One of my customers reported the following message when attempting to view an email in FF browser:
“Warning: Potential Security Risk Ahead
Firefox detected a potential security threat and did not continue to go.planmember.com. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details.
What can you do about it?
The issue is most likely with the website, and there is nothing you can do to resolve it. You can notify the website’s administrator about the problem.”
Here's the link: https://pages.planmember.com/index.php/email/emailWebview?md_id=40957
We haven't seen any reports from IE, Chrome or Safari.
Any clues as to why?
Alle Antworten (1)
This is a problem with the click-tracking link used in the message. If you open
and then expand the error page by clicking the Advanced button
and then View Certificate, you'll see that the certificate is for
Which raises the question: if this intermediate link tracking server is not set up for HTTPS, why would someone get the error in Firefox but not other browsers? It could be because the HTTPS Only setting is enabled in Firefox, and therefore Firefox tries upgrading an HTTP link to HTTPS, and then encounters the error. But you would need to check the original email message to see whether it was an HTTP link (that Firefox upgraded) or already an HTTPS link when the message was sent.