I think this might be due to a Cylon problem in beta 7 which we've fixed in beta 8. I've just tried it with beta 8 and it seems to work ok - that is, it restarts the browser and the Cylon debugger exits normally.
Can you download beta 8 and see if that fixes the problem?
Thank you for looking into it. I'll download beta 8 and try it. Although, is it possible for me to continue debugging after the ExternalInterface call? Based on your response, it looks like, it would now terminate normally instead of crashing. Ideally, I would like to be able to continue debugging after this. Anyway, I'll try Beta 8 and let you know how it works.
Thanks! - Azeem