I just saw this thread on Ubuntu forums. Someone found a post in the swiftfox forums (in google cache) that the project was discontinued.
The website swiftfox.com is still online. So I should suggest download your preferred release and save it somewhere.
I knew nothing of this! It appears that Swiftfox has been dead since the end of April! Thanks for spoiling my day with your post, RHochstenbach! I was using Swiftfox on my second computer which runs Ubuntu Dapper Drake. I was using it as a way to get Firefox 2.0, because Ubuntu still uses Firefox 1.5. I guess I'll have to steal the Firefox 2.0.0.x .deb(s) from the MEPIS repos
Well for whatever reason, Swiftfox 2.0.0.4 has been released and the project appears alive and well! I wonder if the project maintainer changed his mind?