rem: prefs.removeObserver(str, directoryServerObserver); 
add: gPrefBranchInternal.removeObserver(str, directoryServerObserver); 
context: function RemoveDirectoryServerObserver(prefstring){  if (!prefstring) {    prefs.removeObserver("ldap_2.autoComplete.useDirectory", directoryServerObserver);    prefs.removeObserver("ldap_2.autoComplete.directoryServer", directoryServerObserver);  }  else  {    var str = prefstring + ".overrideGlobal_Pref";    prefs.removeObserver(str, directoryServerObserver);    str = prefstring + ".directoryServer";    prefs.removeObserver(str, directoryServerObserver);  }}
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/73c9a1111f3d6e085e25cfcd0d150659488f11a0/MsgComposeCommands.js/clean/mailnews/compose/resources/content/MsgComposeCommands.js