参考以下代码实现：

public class FirefoxBrowserLaunchDemo {  

    public static void main(String[] args) {  

        //Creating a driver object referencing WebDriver interface  
        WebDriver driver;  

        //Setting webdriver.gecko.driver property  
        System.setProperty("webdriver.gecko.driver", pathToGeckoDriver + "\\geckodriver.exe");  

        //Instantiating driver object and launching browser  
        driver = newFirefoxDriver();  

        //Using get() method to open a webpage  
        driver.get("http://www.yiibai.com");  

        //Closing the browser  
        driver.quit();  

    }  

}