favIconUrl property
      
      String?
      get
      favIconUrl
      
    
    
The URL of the tab's favicon. This property is only present if the
extension's manifest includes the "tabs" permission. It may also be an
empty string if the tab is loading.
Implementation
String? get favIconUrl => _wrapped.favIconUrl;
      
      set
      favIconUrl
      (String? v) 
      
    
    
    
Implementation
set favIconUrl(String? v) {
  _wrapped.favIconUrl = v;
}