Firefox: colored title bar in Windows

/* Code to Get Colored Titlebar Back in Mozilla Firefox in Windows 10
	 Created by Vishal Gupta for AskVG.com
	 http://www.askvg.com/tip-get-colored-titlebar-back-in-mozilla-firefox-in-windows-10/

	 with some own modifications
*/
#main-window[windowtype="navigator:browser"] {
	background-color: transparent !important;
}
.titlebar-button {
background-color: transparent !important;
	transition: background-color 0.2s ease;
}
.titlebar-button > .toolbarbutton-icon {
	list-style-image: none;
}
.titlebar-button:hover {
	background-color: rgba(0, 0, 0, 0.15) !important;
}
#titlebar-close:hover {
	background-color: #E81123 !important;
}
#titlebar-close:hover > .toolbarbutton-icon {
	list-style-image: url("chrome://browser/skin/caption-buttons.svg#close-white") !important;
}
.tabbrowser-tab {
	border: 1px dashed red;
}
.tabbrowser-tab .tab-label {
	color: #ccc !important;
	transition-duration: .2s;
}
.tabbrowser-tab:hover .tab-label,
.tabbrowser-tab[selected="true"]  .tab-label {
  color: #111 !important;
}