/* L'image vient directement du jeu d'icônes de GTK. */
.bookmark-item[container="true"][label="HOME"] {
    list-style-image: url('chrome://browser/skin/home.svg') !important;
    -moz-image-region: rect(0px 16px 16px 0px) !important;
}

/* Ici, les images sont encodées en base64 pour éviter les dépendances. */
/* Il est possible de les inclure directement depuis le disque.         */
.bookmark-item[container="true"][label="PHP"] {
    list-style-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQEAIAAADAAbR1AAAACXBIWXMAAA7DAAAOwwHHb6hkAAAACXZwQWcAAAAQAAAAEABcxq3DAAAAg0lEQVQ4y2NsaGhoOHCAgWaAiXZG08kCFvzS4eHh4eLiyCIrV65c+fIllX2gqampqalJkQ+IdylEJbIsAb3Xr1+/fv06pkHXkQAlsky4JDCDhTzZYZZMkb2GK3xxAVx6USxAlkBOCRBxTBFi9GIJIswESowILnEm8gIEl9sxAeOQL00BaSyt9ewBR8AAAAAldEVYdGNyZWF0ZS1kYXRlADIwMDktMTItMDRUMTM6MjM6MTAtMDU6MDBXCwHlAAAAJXRFWHRtb2RpZnktZGF0ZQAyMDA5LTEyLTA0VDEzOjIzOjEwLTA1OjAwCLp30QAAAABJRU5ErkJggg==') !important;
}
.bookmark-item[container="true"][label="FreshRSS"] {
    list-style-image: url('data:image/png;base64,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') !important;
}