The good folks at Mozilla have set their sights, as well as their sites, on Guiness and their book of world records to attempt to achieve the record for most downloads in 24 hours.

So far, just over 128,000 people have pledged to download Firefox 3 on Download Day, which is yet to be announced but will undoubtedly coincide with the release of the Firefox 3 stable version.

According to the FAQ, download day should be in June, but a definate date is not set. As soon as Firefox 3 is generally released download day will begin. There currently is no set record number, as this is the first attempt at a software download record, but Mozilla’s goal is 5 Million downloads, a whole 3.4 Million more than Firefox 2.

You can take part in Download Day by pledging to download Firefox 3 on the Spread Firefox website.

Edit: Firefox Download Day is scheduled for Tuesday, June 17th.