So far no one has been able come up with a fix to the homepage issue. There have been several bugs filed and a note about a svn patch. So hopefully the issue gets fixed soon.
The strange thing about it is that it didn't affect everyone. Although a lot of people in the Sidux community seem to have been bit by the homepage bug. Even looking at the pref.js in Iceweasel and the Mozilla Firefox doesn't show anything different that would cause the problem.
