Test Firefox 3 Beta on your Mac without wiping out your entire Firefox 2.x profile.
Version: 2.1 Build 001MultiFireFox will allow you to test Firefox 3 Beta on your Mac without wiping out your entire Firefox 2.x profile.
Operating System: Mac OS X
MultiFireFox is a little launcher app that, when copied to your Apps folder along with the accompanied Firefox3.app file (appropriately renamed so it will not overwrite the stable version), will allow you to create and/or select an additional profile, as well as the version of Firefox that you wish to use.
MultiFireFox is clean, simple, and just works.
NOTE: MultiFireFox includes the FF3 Beta 3 app and is released under the MIT License.