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Teams: unable to open web links and files in browser or desktop apps

Have you come across an issue within Microsoft Teams Desktop Client where any Web Links aren't opening in your Browser or those documents under the files tab no longer opening externally in your browser or the corresponding Desktop App? Then this tip is for you
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Affected Teams version: 1.6.00.26474

Operating Systems Affected: Windows 10 and Windows 11

Symptom

Clicking on a Web link in a Teams chat or Teams channel fails to open in browser.

Attempting to open a file under the files tab on a Teams channel display the message saying the document is opening but nothing happens.

Cause

Default app for the Microsoft-edge protocol is set to the Legacy Microsoft Edge app. Possibly due to a change in the updated Teams client which no longer supports this legacy app.

Checking through the support logs for Teams revealed:

<15032> - - warning - - duplicate external url with protocol ms-excel: not opened

After checking within the Default Apps area the only app that has a duplicate url protocol is Microsoft Edge. The one with the icon is the Chromium Edge, the one without an icon is the Legacy Edge

Fix

Method 1: Manual Fix

  1. Open Settings

  2. Default Apps

  3. Click on “Change defaults by app”

  4. Scroll down and select “Microsoft Edge”

  5. Set URL:Microsoft-Edge to be the Microsoft Edge app (with icon)

  6. Retry web link in Teams will now load up in the Microsoft Edge Browser.

Method 2: Group Policy - App Association File

Update the ProgId for the microsoft-edge identifier to be “MSEdgeHTM” which is for Chromium Edge.

Replace:

<association Identifier="microsoft-edge" ProgId="AppX3xxs313wwkfjhythsb8q46xdsq8d2cvv" />

With:

<association Identifier="microsoft-edge" ProgId-"MSEdgeHTM" ApplicationName="Microsoft Edge" />

Method 3: Reset Defaults

  1. Go to Settings.

  2. Click on Apps.

  3. Click on Default apps.

  4. Click on Reset Default Apps (this will reset all default to Microsoft Recommended)

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Jack Ford
Cloud Technical Officer
Experienced Support Specialist with a demonstrated history working in the Education, Digital Marketing and housing industry. Currently working at the local government.
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