The word is out that Mozilla has officially set a record for the most downloads in a 24 hour period. The official number is 8,002,530 copies of Firefox 3 downloads.

“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.

Microsoft has about 74% of the world market share for browsers while Firefox accounts for about 18%. We realize that this was conceived as a publicity stunt, but now that XP is retired, we expect that number will go up.