userChrome.css

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

toolbarbutton#alltabs-button {
    -moz-binding: url("userChrome.xml#js");
}

/* Hide sidebar header */
#sidebar-header { visibility: collapse; }

/* Hide the tabs, as we're using tree-style vertical tabs */
/*:root:not([customizing]) #navigator-toolbox:not(:hover):not(:focus-within)*/
#TabsToolbar { visibility: collapse; }

/* Hide the forward/backward buttons */
#back-button, #forward-button { display: none; }

/* Move the toolbox to the bottom */
#navigator-toolbox {
    -moz-box-ordinal-group: 2 !important;
}
/* Partial removal of black bottom 1px line shown in fullscreen mode */
#navigator-toolbox:after { display: none !important; }

/* Make nav-bar thinner */
#nav-bar {
    -moz-box-ordinal-group: 2 !important;
    padding-top: 1px !important;
    padding-bottom: 0 !important;
    background-color: #eeeeee !important;
    max-height: 18px !important;
    /*font-size: 160%; !important*/
}

.identity-box,  
#urlbar {
    border: none !important;
    font-family: monospace !important;
    font-size: 11px !important;
    margin-top: -3px !important;
    margin-bottom: -3px !important;
    max-height: 18px !important;
}

.toolbarbutton-1 {
    margin: -5px 0 -5px -5px !important;    
}

#tabbar {
    background-color: #eeeeee !important;
}

#tabbar .after-tabs { visibility: collapse; }

/*#urlbar .textbox-input-box { visibility: collapse; }*/

/* Move ths statuspanel to the right so that it doesn't interfere with Tridactyl */
statuspanel { right: 0px; }