(firefox:11217): Gtk-WARNING **: 20:51:12.400: Theme directory emblems/16 of theme Mojave-CT has no size field
(firefox:11217): Gtk-WARNING **: 20:51:12.400: Theme directory emblems/22 of theme Mojave-CT has no size field
(firefox:11217): Gtk-WARNING **: 20:51:12.400: Theme directory emblems/24 of theme Mojave-CT has no size field
(firefox:11217): Gtk-WARNING **: 20:51:12.400: Theme directory emblems/32 of theme Mojave-CT has no size field
(firefox:11217): Gtk-WARNING **: 20:51:12.400: Theme directory emblems/48 of theme Mojave-CT has no size field
(firefox:11217): Gtk-WARNING **: 20:51:12.400: Theme directory emblems/64 of theme Mojave-CT has no size field
(firefox:11217): Gtk-WARNING **: 20:51:12.400: Theme directory emblems/128 of theme Mojave-CT has no size field
(firefox:11217): Gtk-WARNING **: 20:53:37.804: Theme directory emblems/16 of theme Mojave-CT has no size field
(firefox:11217): Gtk-WARNING **: 20:53:37.804: Theme directory emblems/22 of theme Mojave-CT has no size field
(firefox:11217): Gtk-WARNING **: 20:53:37.804: Theme directory emblems/24 of theme Mojave-CT has no size field
(firefox:11217): Gtk-WARNING **: 20:53:37.804: Theme directory emblems/32 of theme Mojave-CT has no size field
(firefox:11217): Gtk-WARNING **: 20:53:37.804: Theme directory emblems/48 of theme Mojave-CT has no size field
(firefox:11217): Gtk-WARNING **: 20:53:37.804: Theme directory emblems/64 of theme Mojave-CT has no size field
(firefox:11217): Gtk-WARNING **: 20:53:37.804: Theme directory emblems/128 of theme Mojave-CT has no size field
Here is what I see when I did open firefox: