Identifier unique to the application that indicates it is Firefox or Thunderbird, etc. Same for all installations of an application regardless of the value of <var>appName</var>
Aitheantóir a léiríonn an feidhmchlár atá ann: Firefox, Thunderbird, etc. Is ionann an cás do gach suiteáil d'fheidhmchlár, is cuma cad is <var>appName</var>