Mozilla has pushed out an update to patch a critical vulnerability in Firefox. It’s urging users to update as quickly as possible — and it’s joined in that warning by the US government. Chinese cybersecurity firm Qihoo 360 reported the zero-day exploit. Mozilla claims to be aware of “targeted attacks in the wild abusing this flaw,” though it doesn’t say exactly how it’s being abused. It describes the problem as “Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion.” Even the Department of Homeland Security is urging users to update their Firefox browser to…

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