rem: try { var pbi = pref.QueryInterface(Components.interfaces.nsIPrefBranchInternal); pbi.addObserver(this.domain, this, false); } catch(ex) { dump("Failed to observe prefs: " + ex + "\n"); } 
add: this.startup(); 
context: function nsButtonPrefListener(){  try {    var pbi = pref.QueryInterface(Components.interfaces.nsIPrefBranchInternal);    pbi.addObserver(this.domain, this, false);  } catch(ex) {    dump("Failed to observe prefs: " + ex + "\n");  }}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/bd396f295c4a78d6b3aa90442c0450585d243d74/editor.js/clean/editor/ui/composer/content/editor.js