TipsTricksTests.java

@Test
public void manageCookies() {
    driver.navigate().to("http://automatetheplanet.com");

    // get all cookies
    var cookies = driver.manage().getCookies();
    for (Cookie cookie:cookies) {
        System.out.println(cookie.getName());
    }

    // get a cookie by name
    var fbPixelCookie = driver.manage().getCookieNamed("_fbp");

    // create a new cookie by name
    Cookie newCookie = new Cookie("customName", "customValue");
    driver.manage().addCookie(newCookie);

    // delete a cookie
    driver.manage().deleteCookie(fbPixelCookie);

    // delete a cookie by name
    driver.manage().deleteCookieNamed("customName");

    // delete all cookies
    driver.manage().deleteAllCookies();
}