0.11% of Firefox and 0.5% of IE users click on ads

Adtech found that during October and November 2005, only 0.11% of Firefox users ever clicked on an ad, compared with around 0.5% 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% of version 6.x users to 0.53% of version 5.5 users.