when connecting to echange online, MFA shows error Your browser is not supported or up-to-date. Try updating it, or else download and install the latest version of Microsoft Edge

Question

Hi

when i am trying to connect exchange online using poweshell, browser window pop-up for credentials and MFA, but when approve the login request from authenticator ; next windows give error that states - ""MFA shows error Your browser is not supported or up-to-date. Try updating it, or else download and install the latest version of Microsoft Edge.You could also try to access https://aka.ms/mysecurityinfo from another device.""

Answer 1

Hello

I have seen this error before when trying to access using Powershell, and it may seem something related to the cached credential expected in the browser.

Try the next:
I managed to resolve it by visiting https://mysignins.microsoft.com/security-info on Edge and login using the same account I was trying in PS.

It will show you the same message as "We need extra information etc etc", then when I clicked next, it simply brings me to a "All done, your login/MFA is now setup" (something along the lines, I cant remember exactly what the page says now).

Now then try again in PS it should log you in without issues.

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Answer 2

Hello,

Maybe you pass by conditionnal access with requirement for use DesktopApp or something.
Can you try on InPrivate or with Mozilla Firefox and give the result please ?

First, i think it's conditionnal access who block you.

Best regards

Answer 3

Hi @Vikas Saswadkar ,
You could check if there is conditionnal access that restricts you. You could also try updating the browser or changing the browser as mentioned in the error report, or clearing your browser cache.

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Answer 4

I've just had this issue when opening Outlook. The Keep your account secure wizard opened, when I clicked on Next it tried to open the next window but failed with the same error message as the OP.

I got round it by manually going to https://aka.ms/mysecurityinfo in Edge and confirming my contact details (that's all it wanted me to do), I was then able to open Outlook fine.

The question is why is the window not allowing the page to display, I have a feeling it is trying to use Internet Explorer and not my default Edge browser, as to why, I have no clue!?

I'm worried that if something has changed then I may get hundreds of helpdesk calls from users with the same issue.

Answer 5

Open new browser and login with your email account and authenticate with MFA. Just keep it open and try again in PowerShell. This solution fixed for me.