Mozilla recently posted that just 24 hours after releasing Firefox 2.0 (reported by Neowin here) to the public on 24th October, 2 million people downloaded it - that is 30 downloads a second. To compare this figure with Microsoft's IE7 release of only half a million downloads in the first 24 hours, it becomes clear there is a active community that follows Mozilla and anticipates new versions.
Looking back on previous Firefox milestone releases:
- Firefox 1.0: 1 million downloads in the first 24 hours.
- Firefox 1.5: 1.5 million downloads in the first 24 hours
- Firefox 2: 2 million (actually slightly more) people using Firefox 2 in the first 24 hours.