WebDriver | MDN

WebDriver is a remote control interface that enables introspection and control of user agents. It provides a platform- and language-neutral wire protocol as a way for out-of-process programs to remotely instruct the behavior of web browsers. To have the ability to write instruction sets that can be run interchangeably in many browsers on different platforms is critical to deliver a consistent expe

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Firefoxのwebdriverは"Marionette"に今後移行する。実行にはバイナリを配置して起動する事が必要。Seleniumは2.48.0以降で"Marionette"が使用できる。