How to use/attach an existing browser using Selenium?

Question

What is the Selenium equivalent to attaching an existing browser in Watir?

brw = Watir::IE.attach(:title, \"Google\")

Answer 1

1. Run a Webdriver first

   driver = new FirefoxDriver();

2. Now run a RemoteWebdriver

   DesiredCapabilities capabilities = DesiredCapabilities.firefox();
   driver = new RemoteWebDriver(new URL("http://localhost:7055/hub"),capabilities);

The RemoteWebdriver will attach to the first browser window running Webdriver and it will not create a new window.

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Note: Run Webdriver (1) and RemoteWebdriver (2) in separate programs one-by-one).