downloadfenster anpassen ?

/*========= Download-Fenster ** Datei speichern und öffnen mit **** einfärben =========*/
/*==================== in Verbindung mit Script saveTo.uc.js  =========================*/

@-moz-document url(chrome://mozapps/content/downloads/unknownContentType.xhtml) {

/* Öffnen mit - bei verknüpftem Programm */
#openHandler{
    -moz-appearance: none!important;
    min-height:20px!important;
    background:lightgreen!important;  /* Hintergrund der Zeile */
    }
    
/* Öffnen mit DropDown-Menü Hintergrundfarbe */
#openHandlerPopup {
    background: lightgreen !important; 
    }

/* Öffnen mit DropDown-Menü Separatoren entfernt */
#openHandlerPopup > menuseparator:nth-child(3) {
    display: none !important; 
    }    

/* Hintergrund des Popup-Fenster */
dialog#unknownContentType{
    background: yellow !important; 
    } 
    
/* Dateiname in Farbe */
#location {
    color: red !important; 
    }    

/* Hintergrund der einzelnen Button */    
hbox.dialog-button-box button[label="Speichern nach"]{
    -moz-appearance: none!important;
    color: white !important;
    background: dodgerblue !important;
    } 
    
hbox.dialog-button-box button[label="Speichern nach"]:hover {
    -moz-appearance: none !important;
    color: white !important;
    background: blue !important;
    }    
          
hbox.dialog-button-box button[label="Abbrechen"] {
    -moz-appearance: none !important;
    color: white !important;
    background: red !important;
    }

hbox.dialog-button-box button[label="Abbrechen"]:hover {
    -moz-appearance: none !important;
    color: white !important;
    background: green !important;
    }

hbox.dialog-button-box button[label="Datei speichern"] {
    -moz-appearance: none !important;
    color: white !important;
    background: green !important;
    }

hbox.dialog-button-box button[label="Datei speichern"]:hover {
    -moz-appearance: none !important;
    color: white !important;
    background: orange !important;
    }

hbox.dialog-button-box button[label="OK"] {
    -moz-appearance: none !important;
    color: blue !important;
    background: coral !important;
    }

hbox.dialog-button-box button[label="OK"]:hover {
    -moz-appearance: none !important;
    color: white !important;
    background: forestgreen !important;
    }
}