rem: var href = event.target.href; if (href.lastIndexOf("chrome:", 0) == 0) 
add: if (target.href.lastIndexOf("chrome:", 0) == 0) 
context: function contentClick(event) {  // is this a left click on a link?  if (event.shiftKey || event.ctrlKey || event.altKey || event.metaKey ||      event.button != 0 || !(event.target instanceof HTMLAnchorElement))    return true;  // is this an internal link?  var href = event.target.href;  if (href.lastIndexOf("chrome:", 0) == 0)    return true;  const loadFlags = Components.interfaces.nsIWebNavigation.LOAD_FLAGS_IS_LINK;  try {    helpExternal.webNavigation.loadURI(href, loadFlags, null, null, null);  } catch (e) {}  return false;}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/b6706879825438c9ac0233bdd71d27b3574b23ca/help.js/clean/extensions/help/resources/content/help.js