private WebDriver driver;
@Before
public void before(){
   driver = new FirefoxDriver();
}

@Given("^something$)
public void someGivenMehtod(){...}
@When("^anotherThing$)
public void someWhenMethod(){...}
@Then("^conclusion$)
public void someThenMethod(){...}

@After
public void after(){
   driver.close();
}