lockPref("dom.forms.datetime", false);
lockPref("javascript.use_us_english_locale", true);
lockPref("intl.regional_prefs.use_os_locales", false);
defaultPref("intl.locale.requested", "en-US");
defaultPref("general.useragent.override", "Mozilla/5.0 (Windows NT 6.1; rv:45.0) Gecko/20100101 Firefox/45.0, 45");
defaultPref("general.appname.override", "Netscape");
defaultPref("general.appversion.override", "5.0 (Windows)");
defaultPref("general.platform.override", "Win32");
defaultPref("general.oscpu.override", "Windows NT 6.1");