@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);

#main-window #appmenu-button,
#appmenu-toolbar-button {
  background: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAGkUlEQVRYhe2XXWxT2RHH%2F%2FfD17FjQ%2BI1diI3wOaLxJhCjIEsSRZWbFWgAkH56CoooCioi9SHplLVB15YqS%2F7gCggtiJIeaiQliLI9ltURU1BIuBsTBoIhNrYCQ5usBP8mdjXOdf3nj4kocaxA2zVtx1p5KvrMzM%2FzZwzZy7wrXwrS8jBgweZ%2F3cMrtAfa9asUe%2Fdu%2FfnQ0NDD1KpFFl4b7fbmfr6et7hcLxnNpuZZ8%2BeSTl2ws6dO2tNJlNsbGxM%2BUZUJpNJ1dHR0enxeMIAqgCwALB582ZtZ2fnT%2B7duzd0%2Ffr1O4IglDMMk5ul5bt27frxlStXfrdt27Zah8PBvlNwjUbD1NTUbPT5fEm3250EYCstLeXtdntdb2%2Fv%2FefPn1OXy5UwGAxHAZgA5AJoAGw8efLkHzweT2Tfvn0%2FtNls%2FLsAFF%2B4cOErr9dLfT6fUlFR8X2bzdZ4%2F%2F79cZ%2FPR71eL21tbf0SwHcBqPK4YAAYNRrNJ3fv3o2NjY3N7t%2B%2Fv62qqurNECzLMmVlZRvcbjdxu93U4%2FHQ8fFxxe%2F3U4%2FHQ91uN3W5XEm1Wn1Qo9EsW8IVB6C%2Bo6Pj2ryf1KZNm7aXlZUtKsdrm5BhGPWBAwc%2B3bp160eUUiiKAkIII0kSFEUBpRSiKM4CCNfV1S3fsWPH%2ByaTaUaSpOloNJrtigIgfr%2BfPXr06F4AwpYtWz64evXqb0VRTBUEoJQuP3HixC8sFstqRVGQTwVBEJqamhpbWlr2OxyOT5LJZHlPT88NSumr09DS0sJJkiRPTU1xzc3NH69YscKwbNkyYygUio6OjvYTQl6djtyU6K1Wq02WZRTSTCYDURSRSqXg8XgiZ8%2Bevakoyqv6chzHp9Pprbt37%2F4UQGJ4eNgryzIIIThy5EgHIaTktbJnP5eUlJTpdDrDUgCyLCORSMxevHjxzqFDhz578eKFE4C44ESWZQwMDARNJtOHnZ2dPwsGgy8X7Mxmc1VlZaWD4zg2L0B5eflKSZIYSZKwlF6%2BfLmvq6vrtCiKfwLgA5DdjDIAIt3d3X9ua2s7XltbW7NgNzs7i4aGhmZFUYSFxdlHg9Xr9UZCCCilyCd%2Bvz%2BmVqu50tLSJAAXgBcA8nW7xOTkpNvn84W3b9%2FukKT%2F8lVUVNRSStUA0osAtFqtLntxrjidzn91dXX9sb6%2BPs0wjGixWGhFRYVQXV29QRTFSCAQGHU6ncp8FmLxeHzGaDSas31otVoDAHW%2BDDCUUi6TyRQE2LNnj62%2Fv%2F83Lperl%2Bd5ef369T9ob2%2F%2FbOXKlRsVRRGPHTvWLAjCPwkhAKAYDIbluf4UReGQdfpe607T09PppQAYhtGdO3fu14FA4CHP87zZbF6bTCYRCoWUQCAQB1BDCBnmeV6prq626vV6Y66%2FqampOLLKlg2ghEKh0FIAABAOh5ni4uL1ABCJREAIkU6dOvXl48ePbwEYUqlUVBAE3fHjx3%2BaTqcX2T99%2BnQUWZs2G0CemJjwJxKJGa1Wq1uSYk7o6OhoqLu7u%2BfJkyfXATzR6XSxoqIiobW19ZdWq%2FWjXABKqTI4OPg15jfgIgBKaWRgYGC4ubn5g0JRJUnK9PT0uG7cuPGPVCrlBfBQp9N5jEajaDKZ1rW1tX1eWVn5vWQyuch2cHDwUSQS8QCYzQdAAYRv3rz5t8bGxoIALMvy7e3tjYcPH1714MGDO6FQqEan0xWtW7du86pVq7bE43EukUgsThel9Nq1az0A%2Fg1AzgcAAImRkZHeoaGhH9lstrpCENFoFBzHlTc0NBxiWRaUUkiShFAoVLCH3L59u9%2Fr9f4dwGu3Vu5IpgCQ3G43aWpq%2BpDneRWlFPlUlmVIkgRCCAghkGX51Y2Zq8Fg8OX58%2Bc%2Fz2QyTgCJpQAAIJ1KpZJerxcOh6OBZVmuEMTbaDweT54%2BffpXsVjsrwAmkNM58wEoAKbD4fDLkZGRtNVqrVer1epvEnxycjJy5syZL4LB4O8BeAGQ3GCFpmIJQDQWi0309fWNq1SqEovFYmZZln2bwJlMRr5169bgpUuXvojFYn8B4EbW0cuWN839RQAsAGzFxcUb7HZ749q1a2tXr15t1uv12uyJmBAiBQKBl48ePXrqdDr7YrHY1wAeYm7Xzxbw%2F0YAYO7KLgZgBvCdeaD3BEEo0Wq1OpZlOUJIemZmJgogMh%2FQj7l6zyD%2FbflOANlrVZgbu7Xzv6r59zLmUpwCkMRcrd%2Fqo%2BR%2F%2FfTKts%2FfAN4g%2FwENH%2BeqeggNBAAAAABJRU5ErkJggjE3Mzg%3D")  !important;
  background-repeat: no-repeat !important;
  background-position: center bottom !important;
}

#main-window[tabsintitlebar] #appmenu-button {
  background-position: center center !important;
}

#main-window[privatebrowsingmode=temporary] #appmenu-button,
#main-window[tabsintitlebar][privatebrowsingmode=temporary] #appmenu-button,
#main-window[privatebrowsingmode=temporary] #appmenu-toolbar-button {
  background: url("chrome://browser/skin/Privacy-48.png") !important;
  background-repeat: no-repeat !important;
  background-position: center bottom !important;
}

#main-window[tabsintitlebar][privatebrowsingmode=temporary] #appmenu-button {
  background-repeat: no-repeat !important;
  background-position: center center !important;
}