retVals.setPropertyAsBool("importConfirmed", true);
  retVals.setPropertyAsBool("trustForSSL", checkSSL.checked);
  retVals.setPropertyAsBool("trustForEmail", checkEmail.checked);
}

/**
 * ondialogcancel() handler.
 */
function onDialogCancel() {
  let retVals = window.arguments[1].QueryInterface(Ci.nsIWritablePropertyBag2);
  retVals.setPropertyAsBool("importConfirmed", false);
}

window.addEventListener("load", () => onLoad());
PK