Firefox 4 was downloaded around 7 million times, beating out 3.5's tally of 5 million, but falling short of Firefox 3's monumental 8 million.
Mozilla's new browser has maintained more than 4000 downloads per minute for the last 24 hours, peaking at around 9000 per minute in the late afternoon yesterday, when all of Europe and the Americas were awake. There was also a surge over night as Asia woke up, with huge download spikes caused by Japan and India. China, despite having the largest population of Internet surfers, has seen relatively slow uptake, and is currently third in Asia, some way behind India.
The United States registered the largest number of downloads in 24 hours, with about 1.5 million. Germany was second with around 600,000, which, considering Germany's population of 82 million, also represents the most Firefox downloads per capita. The U.K. has seen fairly poor adoption of the browser, registering just 235,000 downloads in the first 24 hours.