rem: if (!this._blurred) this.mDialog.document.documentElement.getButton('accept').disabled = false; 
add: try { if (!this._blurred) this.mDialog.document.documentElement.getButton('accept').disabled = false; } catch (ex) {} 
context:     notify: function (aTimer) {        if (!this._blurred)          this.mDialog.document.documentElement.getButton('accept').disabled = false;        this._timer = null;    },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/d927b0a122a473433dab8a77dbe37041c9d8eb60/nsHelperAppDlg.js/buggy/embedding/components/ui/helperAppDlg/nsHelperAppDlg.js