How to disable cookies in firefox

System.setProperty(FirefoxDriver.SystemProperty.BROWSER_LOGFILE, "null");
FirefoxOptions ops=new FirefoxOptions();
FirefoxProfile profile=new FirefoxProfile();
profile.setPreference("network.cookie.cookieBehavior", 2);
ops.setProfile(profile);

WebDriver driver=new FirefoxDriver(ops);
driver.manage().timeouts().implicitlyWait(20, TimeUnit.SECONDS);
driver.manage().window().maximize();
driver.get("http://cnn.com");

Above code is not workin

profile.setPreference("network.cookie.cookieBehavior",2);
will disbable cookies

CNN is asking as its a website functionality. You cant stop them from asking you

is there any solution to accept cookies browser setting?

click on yes button using selenium