From the error that's thrown, it looks like something goes wrong with Vectors. Might well go away with the redux branch.
Oh, forgot to mention this was reported via Twitter: https://twitter.com/h_a_l_e_x/status/573824938446094336
Product: Firefox → Firefox Graveyard
Status: NEW → RESOLVED
Last Resolved: 2 years ago
Resolution: --- → INCOMPLETE
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