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Selenium uses the EdgeDriver class to manage a Microsoft Edge (Chromium) session. To start a session and automate Microsoft Edge (Chromium), create a new EdgeDriver object and pass it an EdgeOptions object with the UseChromium property set to true. Mac OS X (10.10 and later): The new Microsoft Edge, Apple Safari 10+ or Chrome Linux: Office for the web works in both Firefox or Chrome on Linux, but some features may not be available. Note: Modern pages, lists and libraries on SharePoint Online are only supported in Internet Explorer 11 when Document mode is set to Internet Explorer 11. If you previously automated or tested Microsoft Edge (Chromium) using ChromeDriver and ChromeOptions classes, your WebDriver code does not run on Microsoft Edge Version 80 or later. To solve the problem, update your tests to use the EdgeOptions class and download Microsoft Edge Driver.
This article describes how Microsoft Edge supports Microsoft Defender Application Guard (Application Guard).
Note
This article applies to Microsoft Edge version 77 or later.
Overview
Security architects in the enterprise must deal with the tension that exists between productivity and security. It's relatively easy to lock down a browser and only allow a handful of trusted sites to load. This approach will improve the overall security posture but is arguably less productive. If you make it less restrictive to improve productivity, you increase the risk profile. It's a hard balance to strike!
It's even harder to keep up with new emerging threats in this constantly changing threat landscape. Browsers remain the primary attack surface on client devices because the browser's basic job is to let users access, download, and open untrusted content from untrusted sources. Malicious actors are constantly working to social engineer new forms of attacks against the browser. Security incident prevention or detection/response strategies can't guarantee 100% safety.
A key security strategy to consider is the Assume Breach Methodology, which means there's an acceptance that an attack is going to succeed at least once regardless of efforts to prevent it. This mindset requires building defenses to contain the damage, which ensures that corporate network and other resources remain protected in this scenario. Deploying Application Guard for Microsoft Edge fits right into this strategy.
About Application Guard
Designed for Windows 10 and Microsoft Edge, Application Guard uses a hardware isolation approach. This approach lets untrusted site navigation launch inside a container. Hardware isolation helps enterprises safeguard their corporate network and data in case users visit a site that is compromised or is malicious.
The enterprise administrator defines what are trusted sites, cloud resources, and internal networks. Everything that's not in the trusted sites list is considered untrusted. These sites are isolated from the corporate network and data on the user's device.
For more information:
- watch our video Microsoft Edge browser isolation using Application Guard
- read What is Application Guard and how does it work?
The next screenshot shows an example of Application Guard's message showing that the user is browsing in a safe space.
What's new
Application Guard support in the new Microsoft Edge browser has functional parity with Microsoft Edge Legacy and includes several improvements.
Extension support inside the container
Extension support inside the container has been one of the top requests from the customers. Scenarios ranged from wanting to run ad-blockers inside the container to boost browser performance to having the ability to run custom home-grown extensions inside the container.
Extension installs in the container is now supported, starting from Microsoft Edge version 81. This support can be controlled via policy. The updateURL that gets used in ExtensionInstallForcelist policy should be added as Neutral Resources in the Network Isolation policies used by Application Guard.
Some examples of container support include the following scenarios:
- Force installs of an extension on the host
- Removing an extension from the host
- Extensions blocked on the host
Note
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It's also possible to manually install individual extensions inside the container from the extension store. Manually installed extensions will only persist in the container when Allow Persistence policy is enabled.
Identifying Application Guard traffic via Dual Proxy
Some enterprise customers are deploying Application Guard with a specific use case where they need to identify web traffic coming out of a Microsoft Defender Application Guard container at the proxy level. Starting with Stable Channel version 84, Microsoft Edge will support dual proxy to address this requirement. You can configure this functionality using the ApplicationGuardContainerProxy policy.
The following drawing shows the dual proxy architecture for Microsoft Edge.
Diagnostic page for troubleshooting
Another user pain point is troubleshooting the Application Guard configuration on a device when a problem is reported. Microsoft Edge has a diagnostics page (edge://application-guard-internals) to troubleshoot user issues. One of these diagnostics is being able to check the URL trust based on the configuration on the user's device.
The next screenshot shows a multiple tab diagnostics page to help diagnose user reported issues on the device.
Microsoft Edge updates in the container
Microsoft Edge Legacy updates in the container are part of the Windows OS update cycle. Because the new version of Microsoft Edge updates itself independent of the Windows OS, there is no longer any dependency on container updates. The channel and version of the host Microsoft Edge is replicated inside the container.
Prerequisites
The following requirements apply to devices using Application Guard with Microsoft Edge:
Windows 10 1809 (RS5) and above.
Only Windows client SKUs
Note
Application Guard is only supported on Windows 10 Pro and Windows 10 Enterprise SKUs.
One of the management solutions described in Software requirements
How to install Application Guard
The following articles provide the information you need to install, configure, and test Application Guard with Microsoft Edge.
Frequently Asked Questions
Does Application Guard work in IE Mode?
IE Mode supports Application Guard functionality, but we don't anticipate much use of this feature in IE Mode. IE Mode is recommended to be deployed for a list of trusted internal sites, and Application Guard is for untrusted sites only. Make sure all the IE mode sites or IP addresses are also added to the Network Isolation policy to be considered as trusted resource by Application Guard.
Do I need to install the Application Guard Chrome extension?
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No, the Application Guard feature is natively supported in Microsoft Edge. In fact, the Application Guard Chrome extension isn't a supported configuration in Microsoft Edge.
Are there any other platform related FAQs?
Yes. Frequently asked questions - Microsoft Defender Application Guard
See also
-->WebDriver allows developers to create automated tests that simulate user interaction. WebDriver tests and simulations differ from JavaScript unit tests in the following ways.
- Accesses functionality and information not available to JavaScript running in browsers.
- Simulates user events or OS-level events more accurately.
- Manages multiple windows, tabs, and webpages in a single test session.
- Runs multiple sessions of Microsoft Edge on a specific machine.
The following section describes how to get started with WebDriver for Microsoft Edge (Chromium).
Install Microsoft Edge (Chromium)
Ensure you install Microsoft Edge (Chromium). To confirm that you have Microsoft Edge (Chromium) installed, navigate to edge://settings/help, and verify the version number is version 75 or later.
Download Microsoft Edge Driver
To begin automating tests, use the following steps to ensure that the WebDriver version you install matches your browser version.
Find your version of Microsoft Edge.
Navigate to
edge://settings/help.
Navigate to Microsoft Edge Driver.
Navigate to Get the latest version.
Choose the build of channel that matches your version number of Microsoft Edge.
The Get the latest version section on the Microsoft Edge Driver webpage
Choose a WebDriver language binding
The last component you must download is a language-specific client driver to translate your code (Python, Java, C#, Ruby, JavaScript) into commands the Microsoft Edge Driver runs in Microsoft Edge (Chromium).
Download the WebDriver language binding of your choice. The Microsoft Edge team recommends Selenium 4.00-alpha07 or later, because it supports Microsoft Edge (Chromium). However, you may control Microsoft Edge (Chromium) in all older versions of Selenium, including the current stable Selenium 3 release.
Important
If you previously automated or tested Microsoft Edge (Chromium) using ChromeDriver and ChromeOptions classes, your WebDriver code does not run on Microsoft Edge Version 80 or later. To solve the problem, update your tests to use the EdgeOptions class and download Microsoft Edge Driver.
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Use Selenium 3
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If you already use Selenium 3, you may have existing browser tests and want to add coverage for Microsoft Edge (Chromium) without changing your version of Selenium. To use Selenium 3 to write automated tests for both Microsoft Edge (EdgeHTML) and Microsoft Edge (Chromium), install the Selenium Tools for Microsoft Edge package to use the updated driver. The EdgeDriver and EdgeDriverService classes included in the tools are fully compatible with the built-in equivalents in Selenium 4.
Use the following steps to add the Selenium Tools for Microsoft Edge and Selenium 3 to your project.
Add the Microsoft.Edge.SeleniumTools and Selenium.WebDriver packages to your .NET project using the NuGet CLI or Visual Studio.
Use pip to install the msedge-selenium-tools and selenium packages.
If your Java project uses Maven, copy and paste the following dependency to your pom.xml file to add msedge-selenium-tools-java.
The Java package is also available to download directly on the Selenium Tools for Microsoft Edge Releases page.
Use npm to install the edge-selenium-tools and selenium-webdriver packages.
Automate Microsoft Edge (Chromium) with WebDriver
To automate a browser using WebDriver, you must first start a WebDriver session using your preferred WebDriver language binding. A session is a single running instance of a browser controlled using WebDriver commands. Start a WebDriver session to launch a new browser instance. The launched browser instance remains open until you close the WebDriver session.
The following content walks you through using Selenium to start a WebDriver session with Microsoft Edge (Chromium). You may run the examples using either Selenium 3 or 4. To use with Selenium 3, the Selenium Tools for Microsoft Edge package must be installed.
Automate Microsoft Edge (Chromium)
Selenium uses the EdgeDriver class to manage a Microsoft Edge (Chromium) session. To start a session and automate Microsoft Edge (Chromium), create a new EdgeDriver object and pass it an EdgeOptions object with the UseChromium property set to true.
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The EdgeDriver class only supports Microsoft Edge (Chromium), and doesn't support Microsoft Edge (EdgeHTML). For basic usage, you may create an EdgeDriver without providing EdgeOptions.
Note
If your IT admin has set the DeveloperToolsAvailability policy to 2, Microsoft Edge Driver is blocked from driving Microsoft Edge (Chromium), because the driver uses the Microsoft Edge DevTools. Ensure the DeveloperToolsAvailability policy is set to 0 or 1 to automate Microsoft Edge (Chromium).
Choose Specific Browser Binaries (Chromium-Only)
You may start a WebDriver session with specific Microsoft Edge (Chromium) binaries. For example, you may run tests using the Microsoft Edge preview channels such as Microsoft Edge Beta.
Customize the Microsoft Edge Driver Service
When you use the EdgeOptions class to create an EdgeDriver class instance, it creates and launches the appropriate EdgeDriverService class for either Microsoft Edge (EdgeHTML) or Microsoft Edge (Chromium).
If you want to create an EdgeDriverService, use the CreateChromiumService() method to create one configured for Microsoft Edge (Chromium). The CreateChromiumService() method is useful when you need to add customizations. For example, the following code starts verbose log output.
Note
You do not need to provide the EdgeOptions object when you pass EdgeDriverService to the EdgeDriver instance. The EdgeDriver class uses the default options for either Microsoft Edge (EdgeHTML) or Microsoft Edge (Chromium) based on the service you provide.
However, if you want to provide both EdgeDriverService and EdgeOptions classes, ensure that both are configured for the same version of Microsoft Edge. For example, you may use a default Microsoft Edge (EdgeHTML) EdgeDriverService class and Chromium properties in the EdgeOptions class. The EdgeDriver class throws an error to prevent using different versions.
When you use Python, the Edge object creates and manages the EdgeService. To configure the EdgeService, pass extra arguments to the Edge object as indicated in the following code.
Use the createDefaultService() method to create an EdgeDriverService configured for Microsoft Edge (Chromium). Use Java system properties to customize driver services in Java. For example, the following code uses the 'webdriver.edge.verboseLogging' property to turn on verbose log output.
When you use JavaScript, create and configure a Service with the ServiceBuilder class. Optionally, you may pass the Service object to the Driver object, which starts (and stops) the service for you.
To configure the Service, run another method in the ServiceBuilder class before you use the build() method. Then pass the service as a parameter in the Driver.createSession() method.
Use Chromium-Specific Options
If you set the UseChromium property to true, you may use the EdgeOptions class to access the same Chromium-specific properties and methods that are used when you automate other Chromium browsers.
Note
If the UseChromium property is set to true, you are not able to use properties and methods for Microsoft Edge (EdgeHTML).
Other WebDriver installation options
Chocolatey
If you use Chocolatey as your package manager, run the following command to install the Microsoft Edge Driver.
For more information, navigate to Selenium Chromium Edge Driver on Chocolatey.
Docker
If you use Docker, run the following command to download a pre-configured image with Microsoft Edge (Chromium) and Microsoft Edge Driver pre-installed.
For more information, navigate to the msedgedriver container on Docker Hub.
Next steps
For more information about WebDriver and how to write automated WebDriver tests using Selenium, navigate to the Selenium documentation.
Getting in touch with the Microsoft Edge DevTools team
The Microsoft Edge team is eager to hear your feedback about using WebDriver, Selenium, and Microsoft Edge. To send the team your questions and comments, choose the Send Feedback icon in the Microsoft Edge DevTools or send a tweet @EdgeDevTools.