[Note: I sent an incorrect patch earlier, but I think the mail bounced. If you see another mail like this one, this is the correct one.] Took me a while to get around to it, but this should fix issue 343. Spencer's idea of passing in the workarounds is more correct, but given that the workarounds only seem to be necessary for pre-3.0 mozilla apps, I don't think it's necessary (yet).