EDGE-00-000042 - Extensions that are approved for use must be allowlisted if used.

Information

By default, all extensions are allowed. However, if all extensions are blocked by setting the 'ExtensionInstallBlockList' policy to '*,' users can only install extensions defined in this policy.

Solution

Set the policy value for 'Computer Configuration/Administrative Templates/Microsoft Edge/Extensions/Allow specific extensions to be installed' to 'Enabled'. A list of allowlisted extensions may then be specified.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MS_Edge_V2R5_STIG.zip