It's official: Mozilla's Firefox sets Guinness World Record

From 18:16 UTC on June 17, 2008 to 18:16 UTC on June 18, 2008, Mozilla indeed reached its goal of setting the record for "the single most downloaded piece of software in a single day."

"Mozilla set a new Guinness World Record for the largest number of software downloads in 24 hours for the 8,002,530 downloads of Firefox 3!" a Mozilla spokesperson told BetaNews yesterday.

As previously reported in BetaNews, Mozilla needed to keep careful watch over its servers in handling millions of requests for Firefox 3.0, the latest iteration of its browser.

Given the final build's file size, just the completed downloads (never mind the incomplete ones) constitute about 54.56 TB of data during that period. The actual data transfer has been estimated at something closer to 59.53 TB.

Meanwhile, Mozilla has also posted a breakout of total Firefox 3.0 downloads by countries throughout the world at http://www.spreadfirefox.com. Congrats to Mozilla from the BetaNews team!