The launch of the open source Firefox 3 web browser has set the new Guinness World Record for the largest number of software downloads in 24 hours. Mozilla's mirrors served 8,002,530 complete, individual downloads during the download day event following the official RELEASE OF FIREFOX 3 last month.

The download day grassroots marketing campaign was orchestrated by Mozilla's global marketing team. When the idea was first ANNOUNCEDto the public in May, Mozilla encouraged enthusiasts to pledge in advance. Over 1.7 million users from all over the world visited the SpreadFirefox web site to affirm their support prior to the day of the launch, and many Firefox enthusiasts planned special parties and download-fests for the day of the release.