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>
Za nałoženje jasny identifikator, kótaryž pódawa, lěc jo Firefox abo Thunderbird atd. To samske płaśi za wšykne instalacije nałoženja njeźiwajucy na gódnotu <var>appName</var>