es könnte vielleicht der Teil sein:
CSS
.popup-notification-icon[popupid="web-notifications"], .desktop-notification-icon {
list-style-image: url(chrome://browser/skin/notification-icons/desktop-notification.svg);
fill: blue !important;
margin-left: -27px !important;}
Habe ich hier mal so geändert:
CSS
#identity-popup-permission-label-desktop-notification > .popup-notification-icon[popupid="web-notifications"], .desktop-notification-icon {
list-style-image: url(chrome://browser/skin/notification-icons/desktop-notification.svg);
fill: blue !important;
margin-left: -27px !important;}
Mfg.
Endor