@-moz-document domain("facebook.com") {
#u_0_a, #leftCol {
    display: none;
}

#leftCol div, #rightCol div {
    display: none;
}

#pagelet_composer {
    height: 30px;
    overflow: hidden;
    margin-bottom: 20px;
}

#pagelet_composer:hover {
    height: 200px !important;
}

#u_0_s {
    overflow: hidden;
}
}