add: activeCompositeCalendar.prefPrefix = "lightning-main"; 
context: function getCompositeCalendar(){    if (activeCompositeCalendar == null) {        activeCompositeCalendar =            ltnCreateInstance("@mozilla.org/calendar/calendar;1?type=composite",                              "calICompositeCalendar");        activeCompositeCalendar.addObserver(ltnCompositeCalendarObserver, 0);    }    return activeCompositeCalendar;}
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/579e2f7d7aaf53ad950aa43e72cbfeeaaa7bfb97/calendar-management.js/buggy/calendar/lightning/content/calendar-management.js