lessChrome.HD自动隐藏书签工具栏

只显示标签栏鼠标移到标签栏时显示书签工具栏

下面这个css也可以实现
/* 浮动书签工具栏 */
@namespace url(http://www.mozilla.org/keymaster/gateke ... s.only.xul);
@-moz-document url(chrome://browser/content/browser.xul) {

#main-window:not([inFullscreen="true"]) #navigator-toolbox:not([customizing="true"]) ~ #browser {
margin-top: -25px !important;/* 适当调整 */
}

#main-window:not([inFullscreen="true"]) #navigator-toolbox:not([customizing="true"]) > #PersonalToolbar {
-moz-transition: max-height 0s ease-in-out .1s !important;
-moz-box-ordinal-group: 1000 !important;
padding: 0 3px !important;
position: relative !important;
z-index: 100 !important;
overflow-y: hidden !important;
max-height: 1px !important;
min-height: 1px !important;
}

/*
#main-window[stylish-url="about:blank"] #navigator-toolbox:not([customizing="true"]) > #PersonalToolbar,*/
#main-window:not([inFullscreen="true"]) #navigator-toolbox:not([customizing="true"]):hover > #PersonalToolbar {
-moz-transition: max-height 0s ease-in-out !important;
max-height: 30px !important;
}

}