add: if (!matchesOSABI(blocklistElement)) return;  
context:   _handlePluginItemNode: function(blocklistElement, result) {    var matchNodes = blocklistElement.childNodes;    var matchList;    for (var x = 0; x < matchNodes.length; ++x) {      var matchElement = matchNodes[x];      if (matchElement.nodeType != kELEMENT_NODE ||          matchElement.localName != "match")        continue;      var name = matchElement.getAttribute("name");      var exp = matchElement.getAttribute("exp");      if (!matchList)        matchList = { };      matchList[name] = new RegExp(exp, "m");    }    if (matchList)      result.push(matchList);  },
meta: 10520	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10520/52416d379714fe2a732afff22490e6dd5f8a4783/nsBlocklistService.js/buggy/toolkit/mozapps/extensions/src/nsBlocklistService.js