The OS on the Sputnik systems includes the ubuntu-online-tour package. This bug doesn't occur if ubuntu-online-tour is not install (or if it is purged before the user sets the default browser back to firefox). Specifically the bug doesn't occur if /usr/share/applications/ubuntu-online-tour.desktop is not present. /usr/share/applications/ubuntu-online-tour doesn't assert any MIME type associations or protocol handlers, so I suspect the problem is in firefox or GNOME rather than ubuntu-online-tour itself.
The OS on the Sputnik systems includes the ubuntu-online-tour package. This bug doesn't occur if ubuntu-online-tour is not install (or if it is purged before the user sets the default browser back to firefox). Specifically the bug doesn't occur if /usr/share/ applications/ ubuntu- online- tour.desktop is not present. /usr/share/ applications/ ubuntu- online- tour doesn't assert any MIME type associations or protocol handlers, so I suspect the problem is in firefox or GNOME rather than ubuntu-online-tour itself.