I set it as default for my account (not for the entire machine) using System->Preferences->Preferred_Applications. This causes http:// urls to be openned by epiphany, but seems not to work for file:///. I don't think I should be using 'sudo update-alternatives' for this -- it is an account-wide preference(!).
-- deskbar-applet -- file:/// urls opened in firefox instead of gnome-default-browser https://launchpad.net/bugs/65509 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs