Noch eine Spielerei ![]()
Eigenes Icon.
Eigener Text.
Icon rot.
CSS
		
					
				#faviconid {
  -moz-box-ordinal-group: 2 !important;
}
#identity-box.certErrorPage.notSecureText box#identity-icon-box.identity-box-button  {
  font-size: 0 !important;
}
#identity-box.certErrorPage.notSecureText box#identity-icon-box.identity-box-button::after {  
  color: red !important; 
  content: "! Achtung !" !important;
  font-size: 15px !important;
}
#identity-box.certErrorPage.notSecureText box#identity-icon-box.identity-box-button image#identity-icon {
    fill: transparent !important;
}
#identity-box.certErrorPage.notSecureText box#identity-icon-box.identity-box-button image#identity-icon {
    background: url("file:///C:/Users/Andi/Icons%20Firefox/error.png")!important;
    margin-right: 2px !important;     
    content: '' !important;
    display: block !important;
    width: 16px !important;
    height: 16px !important;
    background-repeat: no-repeat !important;
    background-position: 0 0 !important;
}
#identity-box.certErrorPage.notSecureText box#identity-icon-box.identity-box-button image#faviconid.faviconclass {
  filter: invert(42%) sepia(75%) saturate(4294%) hue-rotate(354deg) brightness(108%) contrast(120%) !important;
}
	
			Alles anzeigen
	Edit:
Code angepasst, siehe Beitrag Nr. 1243