Firefox user getting IE pop ups

Since switching to Comodo (now it works with Vista 64bit) whilst browsing the internet with Firefox with no applications open using Internet Explorer I get IE pop up adverts.

How can I prevent this please?

Welcome to the forum Angua.

I don’t believe this is an issue related to CIS, if you have time, spend a few minutes with google and you will find many many posts on the subject. Most involve infected systems.