All extensions disabled due to expiration of intermediate signing cert

First they force code signing on everyone without a way to disable it then they break it. This is an extreme level of incompetence I didn't expect from Mozilla.

They'd better have the best post mortum ever, possibly with someone being fired.

A mistake of this magnitude cannot be the fault of an individual, because if it was, then the organization lacked adequate safeguards.

What I'd like to see is a post-mortem, followed by an explanation of how they'll prevent the mistake from being made again in future.