diff --git a/gfx/cairo/cairo/src/cairo-xlib-display.c b/gfx/cairo/cairo/src/cairo-xlib-display.c
--- a/gfx/cairo/cairo/src/cairo-xlib-display.c
+++ b/gfx/cairo/cairo/src/cairo-xlib-display.c
@@ -302,6 +302,9 @@ _cairo_xlib_display_get (Display *dpy)
 	    display->buggy_repeat = TRUE;
     }
 
+    /* XXX workaround; see https://bugzilla.mozilla.org/show_bug.cgi?id=413583 */
+    display->buggy_repeat = TRUE;
+
     display->next = _cairo_xlib_display_list;
     _cairo_xlib_display_list = display;