FF 57 crash

This is the second time FF57 has crashed unexpectedly and counldn't recover. FF had to do reset itself. I didn't expect this from a new and improved and overhauled FF. Well, a little but still very freaking annoying.

use firefox sync.;

Are you asking if you use sync or to set sync up?

No I don't use sync....have no reason to.

I was just posting as an observation as to what I experienced with the new FF.