userChrome.css

/*
Most of the file was taken from pacce's userchrome at https://github.com/pacce/dotconfigfiles/tree/master/Firefox

I just updated it with base16-railscasts colors and changed some fonts and dimensions.
*/

#content browser {
	border: 0 !important;
	margin: 0px !important;
}

#toolbar-menubar {
	border: none !important;
}

#appmenu-button-container, #navigator-toolbox #TabsToolbar, #appmenu-toolbar-button, .tabbrowser-tab {
	font: 12px "Inconsolata LGC" !important;
	background: transparent !important;
	text-shadow: none !important;
}

#urlbar {
	visibility: collapse !important;
	border: 0 !important;
}

#go-button, #star-button, .tab-close-button,.autocomplete-history-dropmarker, .tabbrowser-tab[label="New Tab"] .tab-icon-image, .tabs-newtab-button, .tabbrowser-tab .tab-icon-image {
	display: none !important;
}

/* This shouldn't be necessary in Firefox Australis interfaces
#appmenu-toolbar-button, #appmenu-toolbar-button:hover {
	color: #888888 !important;
	text-align: left !important;
	margin: 0 3px 0 0px !important;
	padding: 0 0 0 0 !important;
}

.toolbarbutton-menu-dropmarker {
	display: none !important;
}
*/

#navigator-toolbox #TabsToolbar {
	padding: 0px 0px !important;
	height: 24px !important;
	border: none !important;
}

.tabbrowser-tab {
	line-height: 18px !important;
	text-align: center !important;
	color: #e6e1dc !important;
	background: transparent !important;
	margin: 0px 0px 0px 0px !important;
	padding: 0px 0px 0px 0px !important;
	border: 0 !important;
	border-radius: 0px !important;
}

#content browser {
	 margin-right: -14px !important;
/* fuck scrollbars */
	 overflow-y: scroll;
	 overflow-x: hidden;
}

#nav-bar {
	display: none !important;
}

#TabsToolbar .tabbrowser-tabs {
	min-height: 20px !important;
	margin-top: 0px !important;
}

/* black and white tab style */
#TabsToolbar .tabbrowser-tab[selected] {
	background: #e6e1dc !important;
	font-weight: bold !important;
	background-clip: padding-box !important;
	color: #2b2b2b !important;
}

/* blue and gray tab style 
#TabsToolbar .tabbrowser-tab[selected] {
	background: #6d9cbe !important;
	font-weight: bold !important;
	background-clip: content-box !important;
	color: #e6e1dc !important;
}*/

#TabsToolbar .tab-background {
	margin: 0 !important;
	background: transparent !important;
}

#TabsToolbar .tab-background-start, #TabsToolbar .tab-background-end {
	display: none !important;
}

#TabsToolbar .tab-background-middle {
	background: transparent !important;
}