Mozilla is actively talking with the good people at the Guinness  Book of World Records in an effort to confirm that Firefox 3 has set a new record for most downloads in a single day.  Firefox was downloaded more than eight million times in the 24 hours following its release on Tuesday, and the new browser is now at 12 million and counting.

Perhaps more importantly, Firefox 3 is earning wide praise.  Tech gurus are falling over themselves applauding the browser's speed, as well as its "Smart Location Bar," which shows a list of relevant links when users to type words directly into the address bar.  But it certainly has not been all smooth sailing for Mozilla. Already, a critical flaw has been unearthed, which could allow hackers to gain control of computers remotely.  For now, Mozilla insists that the threat is "minimal" because the exploit's details are yet unpublished.