I won’t be joining the attempted world record of Firefox downloads on the release day June 17th 2008 since I dist-upgraded my Debian unstable just a few days ago and I got my Firef… eh Iceweasel version 3 then.
Of course, others have also noted that Firefox will miss a few Linux users downloading that version as Linux users all over will prefer to get it using their distros’ ordinary means of getting packages and updates…