[expression]

Or ramdisk if you have a stable system.

[marcosdumay]

That would lose the point of a recovery system. I'd rather just turn it off.

[onnoonno]

I have easily more than 100 firefox crashes for each kernel crash, and I guess that is similar for other people(?)

So I think the session restore is almost always used in a case where firefox crashed, but the system is fine.