@namespace url(http://www.w3.org/1999/xhtml);

@-moz-document domain("google.co.jp"), domain("google.com") {
  #global-info,
  #guser b,
  #loading .msg,
  #gaia b,
  #gb b,
  #f_email,
  #nb-user strong,
  #baseDiv div.one_google strong,
  span#email,
  body > table:first-child td font b,
  form > table:first-child td font b,
  div.accountInfo b,
  div.goog-ws-account strong,
  div.tr_emailinfo b,
  div.navigation b,
  td.maincell.gbar b,
  span.email {
    display: none !important;
  }
}