on CursorGtk.cpp gdk_display_get_default() and gdk_cursor_new() is used so all cursor created by this class implementation are only valid for the default display. This should be replaced with gtk_widget_get_display() and gdk_cursor_new_for_display() otherwise it wont work for a window connected to another display using gtk_window_set_screen() for example. Now I am not familiar with the codebase so I am not sure whats the best way to get the pointer of the webview. I guess a work around could be to add a method Cursor::SetDisplay() greets Juan Pablo
*** Bug 268680 has been marked as a duplicate of this bug. ***