Call me a party pooper, but I couldn’t care less about Guinness Book records. I also don’t like overloaded servers that make me wait for forever, so here we go:

Firefox 3.0, English (US). Windows (7.1MB) (via The Pirate Bay)
Firefox 3.0, English (US). OS X (17.2 MB) (via The Pirate Bay)

I didn’t upload the torrents, but I double-checked the signature of the Windows copy and did a SHA1 checksum comparison for the dmg file – these are legitimate 3.0 finals, the same files that would be available at Mozilla.com if the server wasn’t down.