gecko/toolkit/themes/windows/global/passwordmgr.css

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");

.contentPane {
  margin: 9px 8px 5px 8px;
}

.actionButtons {
  margin: 0px 3px 6px 3px !important;
}