Security baseline for Microsoft Edge version 139

We have reviewed the settings in Microsoft Edge version 139 and updated our guidance with the addition of one setting and the removal of one setting. A new Microsoft Edge security baseline package was just released to the Download Center. You can download the new package from the Security Compliance Toolkit.

Allow software WebGL fallback using SwiftShader (Added)

The EnableUnsafeSwiftShaderpolicy controls whether SwiftShader is used as a fallback for WebGL when hardware GPU acceleration is disabled or unavailable. SwiftShader, a software-based renderer, was used to enable WebGL support in environments lacking GPU acceleration, such as virtual machines. However, its continued use poses potential risks, whereby malicious web content could exploit vulnerabilities in the renderer. Due to the potential risks, we have decided to enforce the default and disable this setting.

Edge for Business Connectors (Worth Mentioning)

The new Edge for Business security connectors feature introduces a powerful framework that integrates the browser directly with your organization’s existing security stack covering authentication, data loss prevention (DLP), and reporting. By enabling real-time device trust validation, seamless DLP enforcement, and unified browser-based telemetry, these connectors help close critical gaps in enterprise security while extending the value of your current investments. Additional information can be found on the landing page.

The following settings have been removed due to deprecation:

Microsoft Edge/Private Network Request Settings/Specifies whether to allow websites to make requests to any network endpoint in an insecure manner.

Microsoft Edge version 139 introduces 6 new computer settings and 6 new user settings. We have included a spreadsheet listing the new settings in the release to make it easier for you to find them.

As a friendly reminder, all available settings for Microsoft Edge are documented here, and all available settings for Microsoft Edge Update are documented here.

Please continue to give us feedback through the Security Baseline Community or in comments on this post.