java selenium启动火狐浏览器报错：Cannot find firefox binary in PATH. Make sure firefox is installed. OS appears to be: VISTA Build info: version: '3.8.1', revision: '6e95a6684b', time: '2017-12-01T19:05:14.666Z

Cannot find firefox binary in PATH. Make sure firefox is installed. OS appears to be: VISTA Build info: version: '3.8.1', revision: '6e95a6684b', time: '2017-12-01T19:05:14.666Z'

解决方法：

package my_automation;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;

public class open_browser_01 {

    public static void main(String[] args) throws InterruptedException {
        // E:\Program Files (x86)\Mozilla Firefox
        //System.setProperty("webdriver.gecko.driver", "E:\\webdriver\\geckodriver.exe");
        System.setProperty("webdriver.firefox.bin", "E:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe");
        WebDriver driver = new FirefoxDriver();
        driver.get("https://www.baidu.com");
        driver.manage().window().maximize();
        Thread.sleep(5000);
        driver.quit();

    }

}

FirefoxDriver调用firefox浏览器的安装路径应为C盘的默认目录下，若firefox安装在其他目录下执行时会报错： 
Cannot find firefox binary in PATH. Make sure firefox is installed. OS appears to be: XP 
Build info: version: '2.25.0', revision: '17482', time: '2012-07-18 21:09:54' 
System info: os.name: 'Windows XP', os.arch: 'x86', os.version: '5.1', java.version: '1.6.0_10' 
这是因为找不到firefox的原因。 
解决办法： 
1.重新安装firefox在默认路径下；

OS	Expected Location of Firefox
Linux	firefox (found using "which")
Mac	/Applications/Firefox.app/Contents/MacOS/firefox
Windows	%PROGRAMFILES%\Mozilla Firefox\firefox.exe

2.直接用System.setProperty方法设置webdriver.firefox.bin的值

1. package selenium.test.googleSearch;
2. import org.openqa.selenium.WebDriver;
3. import org.openqa.selenium.firefox.*;
4. public class BaiduFirefoxDriver {
5. /**
6. * @param args
7. */
8. public static void main(String[] args) {
9. // TODO Auto-generated method stub
10. System.setProperty("webdriver.firefox.bin", "D:\\Program Files\\Mozilla Firefox\\firefox.exe");
11. WebDriver driver=new FirefoxDriver();
12. driver.get("http://www.baidu.com/");
13. }
14. }

3.利用setCapability进行设置

1. package selenium.test.googleSearch;
2. import org.openqa.selenium.WebDriver;
3. import org.openqa.selenium.firefox.*;
4. import org.openqa.selenium.remote.DesiredCapabilities;
5. public class BaiduFirefoxDriver {
6. /**
7. * @param args
8. */
9. public static void main(String[] args) {
10. // TODO Auto-generated method stub
11. DesiredCapabilities capability=DesiredCapabilities.firefox();
12. capability.setCapability("firefox_binary",
13. "D:\\Program Files\\Mozilla Firefox\\firefox.exe");
14. WebDriver driver = new FirefoxDriver(capability);
15. driver.get("http://www.baidu.com/");
16. }
17. }

4.用FirefoxBinary类和public FirefoxDriver(FirefoxBinary binary, FirefoxProfile profile)这个构造方法

1. package selenium.test.googleSearch;
2. import java.io.File;
3. import org.openqa.selenium.WebDriver;
4. import org.openqa.selenium.firefox.*;
5. public class BaiduFirefoxDriver {
6. /**
7. * @param args
8. */
9. public static void main(String[] args) {
10. // TODO Auto-generated method stub
11. File pathToFirefoxBinary = new File("D:\\Program Files\\Mozilla Firefox\\firefox.exe");
12. FirefoxBinary firefoxbin = new FirefoxBinary(pathToFirefoxBinary);
13. WebDriver driver = new FirefoxDriver(firefoxbin,null);
14. driver.get("http://www.baidu.com/");
15. }
16. }