AptiQuant is a company that gives pyschometric assessments to employers about their applicants. They recently combed through their data for over 100K of their users to break down browser choice by measured IQ. It was found that users bound to IE6-9 were scraping IQs in the 80s (which rates as dullness and is barely above borderline deficiency). Middle of the road IQs were using Firefox, Chrome and Safari while the geniuses utilized Opera or Camino.

The study showed a substantial relationship between an individual's cognitive ability and their choice of web browser," AptiQuant concluded. "From the test results, it is a clear indication that individuals on the lower side of the IQ scale tend to resist a change/upgrade of their browsers."

Image from KnowYourMeme.