rem: return false; 
add: return true; 
context:   function contentAreaClick(event)   {    var target = event.originalTarget;    var linkNode;    switch (target.localName.toLowerCase()) {      case "a":        linkNode = event.target;        break;      case "area":        if (event.target.href)           linkNode = event.target;        break;      default:        linkNode = findParentNode(target, "a");        break;    }    if (linkNode)      return handleLinkClick(event, linkNode);    if (event.button == 2 &&        !findParentNode(target, "scrollbar") &&        pref.GetBoolPref("middlemouse.paste")) {      return middleMousePaste(event);    }    return false;  }
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/a07efad3ca173c301b000f0f399ab2b4de6f85f7/navigator.js/clean/xpfe/browser/resources/content/navigator.js