これらは、Microsoft Edgeブラウザに固有のCapabilityです。

Microsoft EdgeはChromiumで実装されており、サポートされている最も古いバージョンはv79です。 Chromeと同様に、edgedriverのメジャー バージョン番号は、Edgeブラウザのメジャーバージョンと一致する必要があります。

Chromeページ にあるすべての機能とオプションは、Edgeでも機能します。


Capabilities common to all browsers are described on the Options page.

Capabilities unique to Chromium are documented at Google’s page for Capabilities & ChromeOptions

基本的な定義済みオプションを使用して Edgeセッションを開始すると、次のようになります。

    EdgeOptions options = new EdgeOptions();
    driver = new EdgeDriver(options);
    options = webdriver.EdgeOptions()
    driver = webdriver.Edge(options=options)
            var options = new EdgeOptions();
            driver = new EdgeDriver(options);
      options = Selenium::WebDriver::Options.edge
      @driver = Selenium::WebDriver.for :edge, options: options
      driver = await env.builder()


The args parameter is for a list of command line switches to be used when starting the browser. There are two excellent resources for investigating these arguments:

一般的に使用される引数には、--start-maximized および --headless=new が含まれます。 and --user-data-dir=...


      options.args << '--start-maximized'

Start browser in a specified location

The binary parameter takes the path of an alternate location of browser to use. With this parameter you can use chromedriver to drive various Chromium based browsers.

Add a browser location to options:

    options.binary_location = edge_bin
            options.BinaryLocation = GetEdgeLocation();
      options.binary = edge_location

Add extensions

The extensions parameter accepts crx files. As for unpacked directories, please use the load-extension argument instead, as mentioned in this post.

Add an extension to options:


Keeping browser open

Setting the detach parameter to true will keep the browser open after the process has ended, so long as the quit command is not sent to the driver.

Note: This is already the default behavior in Java.

    options.add_experimental_option("detach", True)

Note: This is already the default behavior in .NET.

      options.detach = true

Excluding arguments

MSEdgedriver has several default arguments it uses to start the browser. If you do not want those arguments added, pass them into excludeSwitches. A common example is to turn the popup blocker back on. A full list of default arguments can be parsed from the Chromium Source Code

Set excluded arguments on options:

    options.setExperimentalOption("excludeSwitches", List.of("disable-popup-blocking"));
    options.add_experimental_option('excludeSwitches', ['disable-popup-blocking'])
      options.exclude_switches << 'disable-popup-blocking'
}, { browsers: [Browser.EDGE]});


Examples for creating a default Service object, and for setting driver location and port can be found on the Driver Service page.

Log output

Getting driver logs can be helpful for debugging issues. The Service class lets you direct where the logs will go. Logging output is ignored unless the user directs it somewhere.

File output

To change the logging output to save to a specific file:

Selenium v4.10

    EdgeDriverService service = new EdgeDriverService.Builder().withLogFile(logLocation).build();

Note: Java also allows setting file output by System Property:
Property key: EdgeDriverService.EDGE_DRIVER_LOG_PROPERTY
Property value: String representing path to log file

    service = webdriver.EdgeService(log_output=log_path)
            service.LogPath = GetLogLocation();

Console output

To change the logging output to display in the console as STDOUT:

Selenium v4.10

    EdgeDriverService service = new EdgeDriverService.Builder().withLogOutput(System.out).build();

Note: Java also allows setting console output by System Property;
Property key: EdgeDriverService.EDGE_DRIVER_LOG_PROPERTY
Property value: DriverService.LOG_STDOUT or DriverService.LOG_STDERR

$stdout and $stderr are both valid values

Selenium v4.10

      service.log = $stdout

Log level

There are 6 available log levels: ALL, DEBUG, INFO, WARNING, SEVERE, and OFF. Note that --verbose is equivalent to --log-level=ALL and --silent is equivalent to --log-level=OFF, so this example is just setting the log level generically:

Selenium v4.8

    EdgeDriverService service =
        new EdgeDriverService.Builder().withLoglevel(ChromiumDriverLogLevel.DEBUG).build();

Note: Java also allows setting log level by System Property:
Property key: EdgeDriverService.EDGE_DRIVER_LOG_LEVEL_PROPERTY
Property value: String representation of ChromiumDriverLogLevel enum

    service = webdriver.EdgeService(service_args=['--log-level=DEBUG'], log_output=log_path)

Selenium v4.10

      service.args << '--log-level=DEBUG'

Log file features

There are 2 features that are only available when logging to a file:

  • append log
  • readable timestamps

To use them, you need to also explicitly specify the log path and log level. The log output will be managed by the driver, not the process, so minor differences may be seen.

Selenium v4.8

    EdgeDriverService service =
        new EdgeDriverService.Builder().withAppendLog(true).withReadableTimestamp(true).build();

Note: Java also allows toggling these features by System Property:
Property value: "true" or "false"

    service = webdriver.EdgeService(service_args=['--append-log', '--readable-timestamp'], log_output=log_path)

Selenium v4.8

      service.args << '--append-log'
      service.args << '--readable-timestamp'

Disabling build check

Edge browser and msedgedriver versions should match, and if they don’t the driver will error. If you disable the build check, you can force the driver to be used with any version of Edge. Note that this is an unsupported feature, and bugs will not be investigated.

Selenium v4.8

    EdgeDriverService service =
        new EdgeDriverService.Builder().withBuildCheckDisabled(true).build();

Note: Java also allows disabling build checks by System Property:
Property key: EdgeDriverService.EDGE_DRIVER_DISABLE_BUILD_CHECK
Property value: "true" or "false"

    service = webdriver.EdgeService(service_args=['--disable-build-check'], log_output=log_path)
            service.DisableBuildCheck = true;

Selenium v4.8

      service.args << '--disable-build-check'

Internet Explorer Compatibility モード

Microsoft Edge は、Internet Explorer ドライバークラスを Microsoft Edgeと組み合わせて使用する “Internet Explorer 互換モード"で動かすことができます。 詳細については、Internet Explorerページを参照してください。

Special Features

Some browsers have implemented additional features that are unique to them.


You can drive Chrome Cast devices with Edge, including sharing tabs

Network conditions

You can simulate various network conditions.




See the Chrome DevTools section for more information about using DevTools in Edge