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Can I run multiple instances of the WebDriver sub-classes?

April 26, 2017INSTANCES run sub-classes webdriver

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Can I run multiple instances of the WebDriver sub-classes?

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Each instance of HtmlUnit and FirefoxDriver is completely independent of every other instance (in the case of firefox, each instance has its own anonymous profile it uses). See the ChromeDriver page for details of its concurrency (short answer: it’s possible on Windows at the moment, but you need to apply a patch). Because of the way that Windows works, there should only ever be a single InternetExplorerDriver instance at one time. If you need to run more than one instance of the InternetExplorerDriver at a time, consider using the RemoteWebDriver and virtual machines.

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Each instance of an HtmlUnitDriver, ChromeDriver and FirefoxDriver is completely independent of every other instance (in the case of firefox and chrome, each instance has its own anonymous profile it uses). Because of the way that Windows works, there should only ever be a single InternetExplorerDriver instance at one time. If you need to run more than one instance of the InternetExplorerDriver at a time, consider using the Remote!WebDriver and virtual machines.