None of the user view files were edited, nor the login of the checkout view.
I did see an error in the log file. It looks like it may be related:
Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer).initWithCallback({notify:function(){IsBusy()&&ReturnErrorCode(2)}},2E3,Ci.nsITimer.TYPE_ONE_SHOT)},datacancel:function(){this.server.datacancel()},getState:function(){return GetState()},_pin:null,_auth:null,getAuth:function(){return this._auth},setAuth:function(a){this._auth=a},getPin:function(){return this._pin},setPin:function(a){this._pin=a},getStorageEngine:function(a){LOADED==0&&LoadFilesDelayed();return getDatasourceAttribute(a,"engine")},