If I try to run from a terminal it displays this:
Code:
kieren@kieren_DT_Slack:~$ firefox
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a family set
(firefox-bin:8400): Gtk-WARNING **: Default font does not have a positive size
I'm not sure what's going on here though. I have gtk-qt-engine installed and it doesn't matter what the font setting or them is, the result is the same.