compact-bookmarks.css

/* ----------------------------- */
/* Firefox Compact Bookmarks Bar */
/* ----------------------------- */

/* remove bookmark folder drop marker */
.toolbarbutton-menu-dropmarker {
    display: none !important;
}

/* Add custom padding size for items below */
toolbarbutton.bookmark-item[image]:not([container]) {
    
}

/* No Favicon Available - Don't display default icon */
toolbarbutton.bookmark-item:not([container]):not([image]) image {
    display: none !important;
}

/* Show Favicon Bookmarks */
.bookmark-item > .toolbarbutton-icon {
    display: -moz-box ! important;
    background-position: 0px 1px !important;
    padding-right: 0px ! important;
    margin: 0 !important;
}

/* Hide label text for items with favicon */
#personal-bookmarks toolbarbutton[image] label {
    display: none !important;
}

/* Hide folder icon for folders */
.bookmark-item[container] > .toolbarbutton-icon {
    margin-right: 5px !important;
    display: none !important;
}