@-moz-document url("chrome://browser/content/browser.xul") {

#identity-box * {
font-size: 11px !important;
}

#urlbar .textbox-input-box {
padding: 0 4px !important;
font-size: 11px !important;
}

#searchbar .textbox-input {
padding: 0 !important;
font-size: 11px !important;
}

}