#alltabs-button Hintergrundfarbe Menü ändern

/* userChrome.css */  
#alltabs-button {  
   display: -moz-box !important;  
}  
/* tab counter */  
#TabsToolbar-customization-target {  
   counter-reset: tabCount;  
}  
.tabbrowser-tab {  
   counter-increment: tabCount;  
}  
#alltabs-button > .toolbarbutton-badge-stack > .toolbarbutton-icon {  
   visibility: collapse !important;  
}  
#alltabs-button > .toolbarbutton-badge-stack {  
   position: relative !important;  
}  
#alltabs-button > .toolbarbutton-badge-stack::before {  
   content: counter(tabCount);  
   border-bottom: 1px solid var(--toolbarbutton-icon-fill);  
   color: var(--toolbarbutton-icon-fill);  
   opacity: var(--toolbarbutton-icon-fill-opacity);  
   position: absolute;  
   bottom: var(--toolbarbutton-inner-padding);  
   left: 50%;  
   transform: translateX(-50%);  
   padding: 0 3px;  
    color: orange !important;                /* digit color */
    background-color: blue; !important;        /* background color */
}
/* CSS by 2002Andreas */
#allTabsMenu-allTabsView > .panel-subview-body {
 background-color: red !important;
 color: white !important;
 font-size: 22px !important;
}