nsICookieManager.remove() is changed. Update your code and pass the correct origin Attributes. Read more on MDN

FYI

X-notifier 3.5.21

Firefox 47.0.1

nsICookieManager.remove() is changed. Update your code and pass the correct originAttributes. Read more on MDN: https://developer.mozilla.org/docs/Mozilla/Tech/XPCOM/Reference/Interfac...

view-source:resource://xnotifier/cookieManager2.js

obj.remove(ck.host,ck.name,ck.path,false);