Unable to disable/hide "This site is trying to open" popup in Edge browser

Question

Hi Team,

I am getting the above popup when I try to open documents stored in WebDav from Edge browser but I do not need this. So, I tried to disable/hide it by adding ExternalProtocolDialogShowAlwaysOpenCheckbox key in the Registry setting under HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Edge but it's not helped.

also, I'm unable to find the "Enable remembering protocol launch prompting preferences" option in edge://flags section.

But still, Edge showing this popup without the "Always allow" checkbox. Could anyone please help me to resolve this?

FYI: I'm using the latest version of Microsoft Edge (98.0.1108.56)

Thanks in Advance,

Answer 1

Hi @Vivek Ramesh

I see that the website is using http://, that's why the registry setting doesn't work. You can refer to this doc:

This policy only applies to https:// links.

In this situation, if you want to disable the prompt for Word protocol, you can try URLAllowlist policy. You can configure the policy or registry setting. For registry setting, you can add ms-word:* protocol to the URLAllowlist:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Edge\URLAllowlist\1=ms-word:*  

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Yu Zhou