//popup.js

chrome.tabs.query({active: true,currentWindow: true},function(tabs) {
        
        var url = tabs[0].url;
        var title = tabs[0].title;
       alert(title + url);
       })

chrome.windows.getCurrent(function (currentWindow) {
 chrome.tabs.query({active: true, windowId: currentWindow.id}, function (tabs) {
  var title=tabs[0].title;
 　　 title=title.split("-")[0];
      title=title.replace(/^\s+|\s+$/g, ''); // 去除头尾空格　 
   //alert("当前tabs页面地址url + 标题title：" + title + " " + tabs[0].url);
  
    
   });
 });