XiTi Monitor has released the latest web browser utilization figures updated to December 2007 based on a sample of 112,000+ sites.
Little change can be observed for Europe except Finland showing the highest market share with 45.4%, surpassing Slovenia which becomes second with 44.6%. In general, Europe saw an increase in Firefox usageof about 0.7% compared to November but just 0.3% compared to the previous high of 27.7% reached last July.
The rest of the world saw a much higher increase with South America growing from 11.1% to 20.2% during 2007, North America from 14.5 to 21%, Asia from 11.8% to 16.5%, Africa from 12.4% to 16.6% and Europe from 23.2% to 28% in the same period.
For an idea of what the global Firefox market share is I factorized the continental market shares with the number of Internet users in each continent as provided by Internet World Stats updated to November 2007.
I added Middle East and Asia regions to match XiTi’s configuration.
So, based on XiTi and IWS’s statistics, roughly 1 in 5 Internet users prefer Firefox, assuming Internet and web usage are correlated.
This would also mean the usual estimate of 120 – 150 million Firefox users could be greatlyÂ undercounted. I think only a tiny percentage of Internet users aren’t web browser users, so that 21.2% would translate into more than 266 million users and growing at a rate of 40 million new Firefox users a year if market share would remain the same.