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ForceMajorVersionToMinorPositionInUserAgent

Enable or disable freezing the User-Agent string at major version 99 (obsolete)

OBSOLETE: This policy is obsolete and doesn't work after Microsoft Edge version 117.

Supported versions

  • On Windows and macOS since 99, until 117

Description

This policy was removed in Microsoft Edge 118 and is ignored if configured.

This policy controls whether the User-Agent string major version should be frozen at 99.

The User-Agent request header lets websites identify the application, operating system, vendor, and/or version of the requesting user agent. Some websites make assumptions about how this header is formatted and may encounter issues with version strings that include three digits in the major position (for example, 100.0.0.0).

Setting the policy to 'Default' or leaving it unset will default to browser settings for the User-Agent string major version. If set to 'ForceEnabled', the User-Agent string will always report the major version as 99 and include the browser's major version in the minor position. For example, browser version 101.0.0.0 would send a User-Agent request header that reports version 99.101.0.0. If set to 'ForceDisabled', the User-Agent string will not freeze the major version.

This policy is temporary and will be deprecated in the future. Note that if this policy and User-Agent Reduction are both enabled, the User-Agent version string will always be 99.0.0.0.

Policy options mapping:

  • Default (0) = Default to browser settings for User-Agent string version.

  • ForceDisabled (1) = The User-Agent string will not freeze the major version.

  • ForceEnabled (2) = The User-Agent string will freeze the major version as 99 and include the browser's major version in the minor position.

Use the preceding information when configuring this policy.

Policy options mapping:

Use this information when configuring this policy.

  • Default (0) = Default to browser settings for User-Agent string version.
  • ForceDisabled (1) = The User-Agent string will not freeze the major version.
  • ForceEnabled (2) = The User-Agent string will freeze the major version as 99 and include the browser's major version in the minor position.

Supported features

  • Can be mandatory: Yes
  • Can be recommended: No
  • Dynamic Policy Refresh: Yes
  • Per Profile: Yes
  • Applies to a profile that is signed in with a Microsoft account: No

Data type

  • Integer

Windows information and settings

Group Policy (ADMX) info

  • GP unique name: ForceMajorVersionToMinorPositionInUserAgent
  • GP name: Enable or disable freezing the User-Agent string at major version 99 (obsolete)
  • GP path (Mandatory): Administrative Templates/Microsoft Edge
  • GP path (Recommended): N/A
  • GP ADMX file name: MSEdge.admx

Example value

Default to browser settings for User-Agent string version.

Registry settings

  • Path (Mandatory): SOFTWARE\Policies\Microsoft\Edge
  • Path (Recommended): N/A
  • Value name: ForceMajorVersionToMinorPositionInUserAgent
  • Value type: REG_DWORD

Example registry value

0x00000000

Mac information and settings

  • Preference Key name: ForceMajorVersionToMinorPositionInUserAgent
  • Example value:
<integer>0</integer>

See also