Internet Explorer users have a lower than average IQ, according to research by Consulting firm AptiQuant.

The study gave web surfers an IQ test, then plotted their scores against the browser they used.

IE surfers were found to have an average IQ lower than people using Chrome, Firefox and Safari. Users of Camino and Opera rated highest.

The report has sparked anger from IE supporters, who have threatened AptiQuant with legal action.

Researchers gave over 100,000 web surfers a free online IQ test. Scores were stored in a database along with each person's web browser data.

The results suggested that Internet Explorer surfers had an average IQ in the low eighties. Chrome, Firefox and Safari rated over 100, while minority browsers Opera and Camino had an "exceptionally higher" score of over 120.

AptiQuant stressed that using IE doesn't mean you have low intelligence. "What it really says is that if you have a low IQ then there are high chances that you use Internet Explorer," said AptiQuant CEO Leonard Howard.

Full story: BBC News