In 2008 the mozilla foundation organized “firefox download day” to break the world record for the “largest number of software downloads in 24 hours”, for the release of firefox3.
Here is the certificate I was given for taking part of it
In fact, it is still valid. Here is the link to the guinness world record
It’s been a few days since firefox 4 has been released and the mozilla foundation has made a real-time download visualization, it’s preaty cool.
Check it out http://glow.mozilla.org/
A quick explanation of how it is working can been seen at