Comment 5 for bug 396836

Leo, you are experiencing a different issue, probably in Firefox itself. The Ubuntu One apps don't care what browser you use. We just run "xdg-open" which in turn runs whatever browser is configured as the default in your desktop. Firefox itself hasn't used ~/.firefox as a folder in a long while. It's been using ~/.mozilla/firefox/ since at least the 2.x series I believe. Try running "xdg-open http://www.google.com" in a terminal, and I'm sure you'll see whatever error it is you're seeing. I'm not sure what error your seeing, as you haven't specified it exactly.