Removing a cookie from an extension…
IS:
Components.classes["@mozilla.org/cookiemanager;1"]
.getService(Components.interfaces.nsICookieManager)
.remove(“forums.vwvortex.com”, “firevortexfavforums”, “/”, false);INSTEAD OF:
cookieSvc.setCookieString(uri, null, “firevortexfavforums=; domain=forums.vwvortex.com; expires=Thu Jan 01 1970 00:00:01 GMT-0700; path=/”, null);