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

@-moz-document domain("docs.google.com"), 
domain("mail.google.com"), 
domain("maps.google.com"), 
domain("maps.google.co.jp"), 
domain("news.google.com"), 
domain("news.google.co.jp"),
domain("www.google.com"), 
domain("www.google.co.jp") {
  #gbar, #guser, .gaiaNav {
    height: 10px !important;
    font-size: 10px !important;
  }
}