Microsoft Edge Extension Policy-setting Configuration and StorageArea.get() API Call

Question

Is there any documentation on how Edge refers to policies for extensions? I am trying to deploy the UBlock Origin Lite extension across all Windows systems in the environment and pre-emptively disable the dashboard from displaying. The plan is to use GPO to deploy the extension, and have a registry entry in place named "disableFirstRunPage" DWORD = 1 at the location "Computer\HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Edge\Extensions\ddkjiahejlhfcafbddmgiahcphecmpfh\Policy". However, the extension developer has stated that there might not be proper implementation of the extension policy in Edge. Could someone provide some guidance on how to pull extension policy correctly?

Here's the link to the original discussion: https://github.com/uBlockOrigin/uBOL-home/discussions/61

Answer 1

Hi @David Luong ,

The available policy fields are described in the Detailed guide to the ExtensionSettings policy:
allowed_types,blocked_install_message,blocked_permissions,installation_mode...

The Microsoft Edge does support the use of browser.storage.managed API according to the https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/storage/managed#browser_compatibility.

Because the "disableFirstRunPage" is a custom policy, based on my research, you could try the following path using registry entry: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Edge\3rdparty\extensions\[ExtensionID]\policy. It works on my side.

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Best Regards,

Raina Zhao