Trying to turn on Adobe Flash settings in Microsoft Edge using Windows Registry(Regedit) modification, but it doesn't reflect in the browser. Not looking for a manual or GPO approach, since it needs to be eventually done on a large scale.
Came across and tried this, To enable Flash Policy for Edge , and also tried the below approach:
$RegistryPath = "HKCU:\SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\MicrosoftEdge\Addons"
New-ItemProperty -Path $RegistryPath -Name "FlashPlayerEnabled" -Value "1" -PropertyType DWORD -Force | Out-Null
(Had to create the Addons folder as it wasn't available). But, they don't seem to reflect the change to the browser. Also tried exporting and comparing the registry by manually turning on/off in the browser to see what values were being changed and even that didn't showcase any difference.
The links you have mentioned in the original post shows the correct registry key settings.
Path: HKLM\Software\Policies\Microsoft\MicrosoftEdge\Addons
Value name: FlashPlayerEnabled
Value type: REG_DWORD
I have tested it on my side and it is enabling/ disabling the flash for the Edge legacy browser.
Reference:
Edit:-
As you had informed that you want to set the policy for the MS Edge (Chromium) browser.
I found some Flash-related policies that may help you to fix your issue.
You can try to refer to the docs and try to set the desired policy.