overlay.js

南开火狐

const ABOUTURL = "http://bbs.nku.cn/mozwiki/"

var AboutNankaiFirefox = {
	showAbout: function(){
		var tab = gBrowser.addTab(ABOUTURL);
		gBrowser.selectedTab = tab;
	}

};

const COUNTURL="http://bbs.nku.cn/nkufirefox/counter";

function countUser(){
	var req = new XMLHttpRequest();
	req.open("GET", COUNTURL);
	req.send(null);
};

window.addEventListener("load", countUser, false);