Firefox Will Soon Warn Users of Software That Performs MitM Attacks (zdnet.com)

The Firefox browser will soon come with a new security feature that will detect and then warn users when a third-party app is performing a Man-in-the-Middle (MitM) attack by hijacking the user's HTTPS traffic. From a report: The new feature is expected to land in Firefox 66, Firefox's current beta version, scheduled for an official release in mid-March. The way this feature works is to show a visual error page when, according to a Mozilla help page, "something on your system or network is intercepting your connection and injecting certificates in a way that is not trusted by Firefox." An error message that reads "MOZILLA_PKIX_ERROR_MITM_DETECTED" will be shown whenever something like the above happens.

Comments

Will have to be don carefully

[The-Ixian]

Not sure how many corporate Firefox deployments there are but this could really give some IT support groups a headache.

On the bright side, users will learn quickly when Superfish style shenanigans are going on.

Overall, I like the idea. In practice, I am thinking this is going to cause more pain than pleasure....