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

/* Shadow above navigator toolbar when tabs-on-top and normal window */
#main-window[sizemode="normal"] #navigator-toolbox[tabsontop="true"] #nav-bar {
    -moz-box-shadow: 0px -4px 8px -4px rgba(0,0,0,0.5);
}

/* Remove shadow when window is inactive */
#main-window[sizemode="normal"] #navigator-toolbox[tabsontop="true"] #nav-bar:-moz-window-inactive {
    -moz-box-shadow: none !important;
}

/* White glow (Office 2010 style) below tab-bar when maximized */
#main-window[sizemode="maximized"] #TabsToolbar {
    background-image: -moz-linear-gradient(top, rgba(255,255,255,0) 20%, rgba(255,255,255,1)) !important;
}

/* Reduce underglow when window is inactive */
#main-window[sizemode="maximized"] #TabsToolbar:-moz-window-inactive {
    background-image: -moz-linear-gradient(top, rgba(255,255,255,0) 20%, rgba(255,255,255,0.7)) !important;
}