Firefox 3 is expected to be out soon and Mozilla is trying to create a World record of sorts by making Firefox 3 the software that gets the maximum number of downloads on a single day. This is a good marketing initiative by Mozilla and I think they are going to succeed in doing that given the popularity of Firefox. They have provided an option for people to signup to commit to download Firefox 3 the day it is released. Once you sign up you will get a reminder about the download once the release is announced. You can go ahead and sign up at http://www.spreadfirefox.com/en-US/worldrecord