Mozilla holds the Guinness World Record for the most downloaded software within 24 hours.
The Mozilla Firefox 3 launch day, From 18:16 UTC on June 17, 2008 to 18:16 UTC on June 18, 2008 was recoded by Guinness to have people download the browser software 8,002,530 times and have declared it an official record.
"As the arbiter and recorder of the world's amazing facts, Guinness World Records is pleased to add Mozilla's achievement to our archives," Gareth Deaves, Guinness' records manager, said in a statement.
Mozilla Vice President of Marketing Paul Kim thanked Firefox fans in a statement, calling them "instrumental in achieving this record."
"Our community members came together and not only spread the word, but also took the initiative to help mobilize millions of people to demonstrate their belief that Firefox gives people the best possible online experience," he said.