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We are seeing this same issue, only seen in Edge, within the last week or so. We are seeing it shortly after opening the browser. It does not happen in incognito mode, that we've seen anyway. The URL it's hitting is
Pop-Up in browser potentially caused by Copilot
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Anonymous
Hello, recently in the last couple of weeks many users in our organization have been experiencing a pop-up that appears in their Edge browser. It will appear for around 2 seconds then go away on its own. I believe it has something to do with the Copilot chat but I am not 100% certain. If anyone can steer me in the right direction of what is causing this and how to stop it, that would be very great. Thanks in advance.
It won't let me insert an image of the pop up but whenever it pops up, its called "M365 Chat Single Sign On Redirect Page - Work - Microso..."
Microsoft Edge | Open the browser | Windows 11
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Anonymous
2025-03-13T19:35:01+00:00 -
Anonymous
2025-03-14T15:24:04+00:00 Hello, recently in the last couple of weeks many users in our organization have been experiencing a pop-up that appears in their Edge browser. It will appear for around 2 seconds then go away on its own. I believe it has something to do with the Copilot chat but I am not 100% certain. If anyone can steer me in the right direction of what is causing this and how to stop it, that would be very great. Thanks in advance.
It won't let me insert an image of the pop up but whenever it pops up, its called "M365 Chat Single Sign On Redirect Page - Work - Microso..."
Seeing the same for 1 employee so far. Tried to upload screenshot.
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Anonymous
2025-03-18T15:33:39+00:00 One of our colleagues is also seeing this since mid of last week when login into the tenant of a client.
The URL for the redirect is the following:
https://outlook.office.com/semanticoverview/m365ChatSSO
So the same URL as for you @Steve Brown17
We would also be very interested in what the reason for that could be.
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Anonymous
2025-03-19T20:27:20+00:00 I am having the same issue and captured a screenshot of the same pop up window as above. This started on the 18th and is driving me crazy. Would love some direction on shutting it off.
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Anonymous
2025-03-20T11:50:32+00:00 I have disabled it.
In Edge browser, go Settings > Sidebar > Copilot and disable all options.
