class WebDriverNavigation (View source)
An abstraction allowing the driver to access the browser's history and to navigate to a given URL.
Note that they are all blocking functions until the page is loaded by by default. It could be overridden by 'webdriver.load.strategy' in the FirefoxProfile preferences. https://code.google.com/p/selenium/wiki/DesiredCapabilities#settings
Move back a single entry in the browser's history, if possible.
Move forward a single entry in the browser's history, if possible.