Firefox has officially landed the world record for most software downloads in a single day.

Mozilla engineers got the news from the Guinness Book of World Records today. With 8,002,530 downloads of Firefox 3 on June 17, the company now holds the title of “largest number of software downloads in 24 hours.”

You can download and print a certificate of participation at the Spread Firefox site. Put it up on the fridge and send a copy to your mom. Hey, at least it’s something good for a change — slacker.