rem: this.branch.setCharPref(name, value != null ? value : ''); 
add: var str = Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString); str.data = value; this.branch.setComplexValue(name, Components.interfaces.nsISupportsString, str); 
context: 	setCharPref: function(name, value) {		this.branch.setCharPref(name, value != null ? value : '');	},
meta: 3175	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/3175/16b366175ddb220dc62a11960ddbc00d60f8001b/options.js/clean/src/content/options.js