Joel already has patches that gets us 90% of the way there in bug 762908. As I understand it, the reason we haven't supported SpecialPowers in reftests thus far is that we feel we don't need it, and want them to be as standards-based as possible. This makes sense for reftests, but I think crashtests are a much different use case, where it's nice to be able to force GC and such. Also, |Components| is going away for content soon, so all the crashtests that access Components.interfaces won't be doing their job unless we fix them.

this is hacky, but my comment explains why. Tested on try a couple times with all green success.

Comment on attachment 664604 [details] [diff] [review] turn on specialpowers for crashtests only (1.0) I'm not a peer here, so it needs proper review from ted.