some of my logs:

Gtk-WARNING **: 15:40:57.974: drawing failure for widget 'GtkBox': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:57.974: drawing failure for widget 'GtkPaned': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:57.974: drawing failure for widget 'GtkBox': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:57.974: drawing failure for widget 'GtkFileChooserWidget': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:57.974: drawing failure for widget 'GtkBox': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:57.974: drawing failure for widget 'GtkFileChooserDialog': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:59.735: infinite surface size not supported

(firefox-aurora:221704): Gtk-WARNING **: 15:40:59.735: drawing failure for widget 'GtkImage': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:59.735: drawing failure for widget 'GtkButton': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:59.735: drawing failure for widget 'GtkPathBar': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:59.735: drawing failure for widget 'GtkBox': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:59.735: drawing failure for widget 'GtkStack': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:59.735: drawing failure for widget 'GtkBox': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:59.735: drawing failure for widget 'GtkRevealer': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:59.735: drawing failure for widget 'GtkBox': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:59.735: drawing failure for widget 'GtkPaned': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:59.735: drawing failure for widget 'GtkBox': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:59.735: drawing failure for widget 'GtkFileChooserWidget': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:59.735: drawing failure for widget 'GtkBox': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:40:59.735: drawing failure for widget 'GtkFileChooserDialog': invalid value (typically too big) for the size of the input (surface, pattern, etc.)

(firefox-aurora:221704): Gtk-WARNING **: 15:41:12.615: infinite surface size not supported