Hi Rubin, you can use following piece of code to capture network traffic and http requests from webdriver:
public void proxy {
        Proxy proxy = new Proxy();
        // The URL here is the URL that the browsermob proxy is using
        proxy.setHttpProxy("localhost:9100");
        DesiredCapabilities capabilities = DesiredCapabilities.firefox();
        capabilities.setCapability(CapabilityType.PROXY, proxy);
        WebDriver driver = new FirefoxDriver(capabilities);
    }