搭建环境为：selenium-java 2.41.0与fireFox3.0编写自动化案例时会出现错误；实验后可以通过selenium-java 2.41.0 与firefox4.0可以解决如下问题。 部分代码如下： org.openqa.selenium.firefox.NotConnectedException: Unable to connect to host 127.0.0.1 on port 7055 after 45000 ms. Firefox console output: 2572416 addons.xpi DEBUG Directory state JSON differs: cache [{"name":"app-global","addons":{"{972ce4c6-7e08-4474-a285-3208198ce6fd}":{"descriptor":"D:\\Program Files\\Mozilla Firefox\\browser\\extensions\\{972ce4c6-7e08-4474-a285-3208198ce6fd}","mtime":1413302015947,"rdfTime":1411526203000}}},{"name":"app-profile","addons":{"fxdriver@googlecode.com":{"descriptor":"C:\\Temp\\anonymous6974191073983918868webdriver-profile\\extensions\\fxdriver@googlecode.com","mtime":1413302559220,"rdfTime":1413302556581},"cehomepage@mozillaonline.com":{"descriptor":"C:\\Temp\\anonymous6974191073983918868webdriver-profile\\extensions\\cehomepage@mozillaonline.com","mtime":1413302564086,"rdfTime":1411364160000},"cemigration@mozillaonline.com": 所以通过selenium-java 2.41.0 与firefox4.0的搭配方式做处理