Sunbird fails to work if javascript.options.strict is set to true [in nsIModule::getClassObject] Steps to Reproduce: 1. Create a new profile and start Sunbird --> start is ok, views are displayed, everything looks fine 2. Quit Sunbird 3. Add user_pref("javascript.options.strict", true); to your prefs.js file 4. Start Sunbird Actual Results: Errors in JavaScript console (see below), views don't display properly, views can't be switched, it is not possible to create calendars, events, tasks, ... After startup: Error: [Exception... "'[object Object]' when calling method: [nsIModule::getClassObject]" nsresult: "0x8057001c (NS_ERROR_XPC_JS_THREW_JS_OBJECT)" location: "JS frame :: file:///Y:/tmp/sb-trunk-rel/dist/bin/components/calCompositeCalendar.js :: anonymous :: line 137" data: no] Error: [Exception... "ServiceManager::GetService returned failure code:" nsresult: "0x80570016 (NS_ERROR_XPC_GS_RETURNED_FAILURE)" location: "JS frame :: file:///Y:/tmp/sb-trunk-rel/dist/bin/components/calCompositeCalendar.js :: anonymous :: line 137" data: no] Trying to switch views: Error: gCalendarWindow has no properties Source File: chrome://calendar/content/calendar.xul Line: 1 Start event dialog: Error: [Exception... "'[object Object]' when calling method: [nsIModule::getClassObject]" nsresult: "0x8057001c (NS_ERROR_XPC_JS_THREW_JS_OBJECT)" location: "JS frame :: chrome://calendar/content/calendarUtils.js :: createToDo :: line 99" data: no] Error: uncaught exception: [Exception... "ComponentManager::CreateInstance returned failure code:" nsresult: "0x80570015 (NS_ERROR_XPC_CI_RETURNED_FAILURE)" location: "JS frame :: chrome://calendar/content/calendarUtils.js :: createToDo :: line 99" data: no] Additional Information: Setting javascript.options.strict back to false fixes everything. Tested on my own Sunbird trunk build on Windows 2000 and with 2006-06-08-06 Sunbird nightly build on Linux.

*** This bug has been marked as a duplicate of 340019 ***