Are Explorer Users More Gullible?

There are a variety of interpretations of these findings

Internet Explorer users are at least four times as likely to click on Web ads than Firefox users, a German advertising technology company said last week.

The company, Adtech, found that during October and November, only 0.11 percent of Firefox users ever clicked on an ad, compared with around 0.5 percent of IE users. The percentage of IE users clicking on ads varied depending on which version of the browser was being used, the company said: from 0.44 percent of version 6.x users to 0.53 percent of version 5.5 users. The survey was based on 1,000 Web sites in Europe that use Adtech's ad server.

I suppose the most begnin explanation is that Firefox's user base is concentrated among the tech savvy. Hence, no great surprise here.