// CSSを適用
var style = <![CDATA[
#bookmarks-ptf toolbarbutton {
background-color: #9cf;
-moz-flex: 1;
min-width: 150px;
max-width: 500px;
}
#bookmarks-ptf .toolbarbutton-icon {
display: none !important;
}
]]>.toString();
var sspi = document.createProcessingInstruction(
'xml-stylesheet',
'type="text/css" href="data:text/css,' + encodeURI(style) + '"'
);
document.insertBefore(sspi, document.documentElement);
sspi.getAttribute = function(name) {
return document.documentElement.getAttribute(name);
};

}());