If you are running AppGuard 4.0, there is no longer any need to make any MG exceptions. If you are running AppGuard 3.5, it may be necessary to have these exceptions. Chrome did not work without specifying them as exceptions (at least at some point - perhaps an update to Chrome fixed the issue and perhaps that is why Opera works). If you're running AppGuard 3.5, you could try removing them from the MG exception list. If you're running AppGuard 4.0, the MG exceptions may still be in your user-defined XML file. If that is the case, you might have to restore defaults in order to get them removed since the GUI controls for MG have been removed from the product.