Social Fixer is a great idea in general. Unfortunately, for no apparent reason out of the blue yesterday, my two-factor authorizations were at first receiving LS-NONCE instead of a six-digit code, and now I'm getting no codes at all. Resetting password and other options provide the same results. Which means I'm locked out of FB with no other recourse until I upload a photo of my driver's license (don't have any of the other acceptable ID's). I can't prove in any way that Social Fixer is to blame, but since I'm not one who's even close to breaking posting guidelines, I don't know what else other than being trapped in the middle of the struggle between Facebook and Social Fixer could have caused the problem.