rem: if (!this._reportButton) 
add: if (!this._reportButton) 
context:   onUpdatePageReport: function ()  {    if (!this._reportButton)       this._reportButton = document.getElementById("page-report-button");        if (gBrowser.selectedBrowser.pageReport) {      this._reportButton.setAttribute("blocked", "true");      if (gPrefService && gPrefService.getBoolPref("privacy.popups.showBrowserMessage")) {        var bundle_browser = document.getElementById("bundle_browser");        var brandBundle = document.getElementById("bundle_brand");        var brandShortName = brandBundle.getString("brandShortName");        var message;        var popupCount = gBrowser.selectedBrowser.pageReport.length;#ifdef XP_WIN        var popupButtonText = bundle_browser.getString("popupWarningButton");#else        var popupButtonText = bundle_browser.getString("popupWarningButtonUnix");#endif        if (popupCount > 1)           message = bundle_browser.getFormattedString("popupWarningMultiple", [brandShortName, popupCount]);        else          message = bundle_browser.getFormattedString("popupWarning", [brandShortName]);        gBrowser.showMessage(gBrowser.selectedBrowser, "chrome://browser/skin/Info.png",                              message, popupButtonText, null, null, "blockedPopupOptions", "top", true);      }    }    else      this._reportButton.removeAttribute("blocked");  },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/2fb9feaadc992e3ccd442db789244b253d0427f8/browser.js/buggy/browser/base/content/browser.js