O Internet Explorer has absurdities 51,65%, with regard to the use of navigators in Angola.
From January to the present, Microsoft's browser has dominated, leaving behind the competition. Second comes Google Chrome with 18,93% and only then comes Mozilla Firefox with 17,71%.
This Internet Explorer domain is primarily due to its use in companies, which insist on leaving IE as the default browser. I sincerely hope you are using the 9 version and not that famous 6 version (that the lord of the Web has it. Rest in peace.)
Data obtained from the StatCounter (one of the most respected in this type of statistics)
