Microsoft’s Internet Explorer (IE) browser has fallen below 50% of the worldwide market for the first time according to StatCounter.

The company’s research arm, StatCounter Global Stats finds that Microsoft IE fell to 49.87% in September followed by Firefox with 31.5%.

Google’s Chrome continued to increase market share and has more than tripled from 3.69% in September 2009 to 11.54% in September this year.

StatCounter CEO Aodhan Cullen said, Microsoft’s agreement with European Commission competition authorities to offer EU users a choice and menu of browsers from March may have tipped IE below 50% globally.

According to the report, IE market share in Europe has fallen to 40.26% in September this year from 46.44% in September last year.

In North America IE is still above 50% at 52.3% followed by Firefox at 27.21% and Chrome at 9.87%.