1.下载Python2，安装，设置系统变量

2.下载selenium：pip install -U selenium

3.一般firefox安装在非默认位置：

binary = FirefoxBinary('D:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe')    or

binary = FirefoxBinary('D:/Program Files (x86)/Mozilla Firefox/firefox.exe')

driver=webdriver.Firefox(firefox_binary=binary)

如果Java代码实现的话：

        System.setProperty("webdriver.firefox.bin", "D:/Program Files (x86)/Mozilla Firefox/firefox.exe");

        WebDriver driver = new FirefoxDriver();