Selenium startup Firefox failed

Build Java+selenium Environment today, build several times failed, summarize the reasons

1. Selenium start Firefox, no additional driver required

2. Friefox If the default path is not installed to the C drive, the code needs to be modified to:

If Firefox is not installed by default on the C drive, you need to set its path
System.setproperty ("Webdriver.firefox.bin", "D:/program Files (x86)/mozilla Firefox/firefox.exe");
Webdriver Driver = new Firefoxdriver ();

3. The Firefox version does not have the highest, high version selenium incompatible

Selenium startup Firefox failed