userchrome.css

/* hide normal horizontal tab bar */
#TabsToolbar {
    display: none !important;
 }

/* Create space for the sidebar */
toolbox#navigator-toolbox{
    margin-left: 220px !important;
}


/* Put the sidebar at the top */
vbox#sidebar-box {
    margin-top: -43px !important;
}


/* Move  min/max/close */
toolbar#nav-bar {
    margin-right: 75px !important;
}

.titlebar-buttonbox-container {
    display: block;
    position: fixed !important;
    right: -60px !important; /* Move it to right side */
    top: 5px !important;
}

.titlebar-buttonbox{
    position: fixed; /* Fixed position for menu */
    right: 60px !important; /* Move it to right side */
}

.titlebar-button {
    padding:0 !important;
}