/* about:restartrequiredの再起動ボタンをページ左上に移動させる */
@-moz-document url("about:restartrequired") {
body {
position: relative !important;
}
#restartButtonContainer #restart {
position: absolute !important;
top: 0px !important;
left: 20px !important;
padding-bottom: 2px !important;
}
}