如果不安装stylish，可以用到以下代码吗？

如果不安装stylish，可以用到以下代码吗？可以的话，放入哪里呢？UserContent.css？userChrome.css？
代码来源：http://userstyles.org/styles/43235/firefox-4-addonbar-in-a-corner

@namespace url(http://www.mozilla.org/keymaster/gateke ... s.only.xul);

#browser-bottombox {
  position: fixed;
  width: auto;
  bottom: 0px;
  padding-right: 5px;
  padding-left: 5px;
  padding-top: 1px;
  background: -moz-Dialog;
  border: 1px solid transparent;
  -moz-transition: all 0.25s ease;
}

@media all and (-moz-windows-theme:aero) {

#browser-bottombox:not(:-moz-lwtheme) {
  background: hsl(214,44%,87%)!important;
}

}


/* Opacity */
#browser-bottombox {
  opacity: 0.4;
}

#browser-bottombox:hover {
  opacity: 1 !important;
}


/* Slide effect */
/**/

/* Side */
#browser-bottombox {
  right: 0px;
  -moz-border-radius: 7px 0 0 0;
  background-position: right bottom !important;
  border-bottom: none;
  border-right: none;
}

#addon-bar > #status-bar > .statusbar-resizerpanel {
  position: relative;
  margin-right:-4px;
}

#FindToolbar {
  position: fixed !important;
  border: 1px solid transparent;
  border-top: none;
  border-radius: 7px 7px 7px 7px;
  background: inherit;
  bottom:34px;
  right:50px;
  background-position: 78% -40px;
}

.statuspanel-label {
  border-bottom-left-radius: 3.3px;
  border-bottom: 1px solid rgb(204, 204, 204) !important;
}

statuspanel:-moz-locale-dir(ltr)[mirror],
statuspanel:-moz-locale-dir(rtl):not([mirror]) {
  bottom: 22px;
}

/* Borders */
#browser-bottombox, #FindToolbar {
  border-color: -moz-ButtonDefault;
}

@media all and (-moz-windows-theme:aero) {

#browser-bottombox, #FindToolbar {
  border-color: rgba(10%,10%,10%,.4);
}

}

/* Everything else */

#addonbar-closebutton {display: none !important;}

@media all and (-moz-windows-theme:luna-blue),(-moz-windows-theme:luna-silver),(-moz-windows-theme:luna-olive),(-moz-windows-theme:zune),(-moz-windows-theme:royale),(-moz-windows-theme:aero),(-moz-windows-classic) {

#addon-bar {
  -moz-appearance: menuitem !important;
}

}

#main-window:-moz-lwtheme #FindToolbar {
  border-top: none!important;
}

#main-window #tab-view-deck #navigator-toolbox[customizing="true"] ~ #browser-bottombox {
  width: auto !important;
  bottom: 0px !important;
  padding-right: 5px !important;
  padding-left: 5px !important;
  opacity: 1 !important;
}

#main-window #tab-view-deck #navigator-toolbox[customizing="true"] ~ #browser-bottombox > #addon-bar {
  visibility: visible !important;
}

#addon-bar[collapsed="true"] {
  display:none !important;
}

已回复https://www.firefox.net.cn/forum/viewtopic.php?f=6&t=40967