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My security is questioning my use of Firefox because of a lapsed licence.

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I keep getting a warning from my Kaspersky security suite telling me that I shouldn't use Firefox because of a lapsed licence. When I give permission to continue it warns me that my security will be compromised.

I keep getting a warning from my Kaspersky security suite telling me that I shouldn't use Firefox because of a lapsed licence. When I give permission to continue it warns me that my security will be compromised.

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That's a new one! Could you post a screenshot of the warning? This article has tips on how to capture screenshots: How do I create a screenshot of my problem?

Please cut out or blur any sensitive information in the image before attaching it to your reply.

Also, in case you are seeing one of Firefox's built-in error pages about an expired website certificate, does this article help?

What do the security warning codes mean?