“Most single-day software downloads,” a title once held by its successor, Firefox 3.0, Firefox 4.0 blasted the competition out of the water.
In its first 24 hours, Firefox 4 was downloaded 7.1 million times, followed by a second day boost of 8.75 million, blowing away the previous Guinness World Record record for single-day software downloads.
Microsoft’s Internet Explorer 9 came staggering it at 2.3 million downloads in the first 24 hours of its release, and even then this number is said to be deceiving because many of the downloads came from corporations whose IT groups forced the upgrade, whereas “an overwhelming majority of Firefox downloaders are personal and “power” users, not corporate.”