It has come to this day: Google Chrome is the world’s most used web browser, as pointed out by Global Nerdy and StatCounter, the service currently evaluating and classifying this information. While it may not be entirely official, this is a big leap for true, modern browsing with a great interface, compared to the Firefox and Internet Explorer browser (you too, Safari!).
Specifically, the stats say that for the first time in human history, Chrome produced higher traffic in a week than IE, and May 14th–20th marks the first time Chrome has averaged a higher traffic share over a full seven-day stretch. See more about the whole subject at the source links.