Error: "Your browser is not supported anymore" while trying to add Gmail account on Mail app in Windows Phone

Getting this error when trying to add gmail account in Outlook app

Original title: Can't log in into Gmail on Windows 10 mobile

Hi Nazarii,

As you are facing issues with accessing the Gmail account in Outlook app on your phone, we will help you with this issue.

Provide us additional information to assist you better with this issue:

  1. What is the make and model of your phone?
  2. Which is the Windows 10 Mobile Insider Build installed on your phone?
  3. Have you made any changes on your phone prior to this issue?

I suggest you to restart your phone, try to add the account and check if it helps.

Hope it helps. Try the above and update the status of adding the Gmail account for further assistance.

Thank you.

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Please do not give generic answers, it is a serious problem. This problem is hitting everyone last 24 hours. If you have access to a windows 10 mobile, go to outlook -> try to add a new gmail account and you will face the error.

it occurs:

1. in all models of phone running windows 10 mobile

2. it occurs production build and in all insider builds

3. occurs in freshly hard-reset device and devices already running win 10 mobile

4. reboot/ soft reset/ hard reset / removing/ re-adding account - NOTHING helps

5. occurs for both - 1. without two factor authentication and 2. with two factor authentication.

please inform us whats the problem

more info:

http://forums.windowscentral.com/windows-10-mobile/433998-cant-add-google-account-build-14393-5-anniversary.html

https://www.reddit.com/r/windowsphone/comments/4w1ino/unable_to_add_gmail_to_wp10/

https://www.reddit.com/r/windowsphone/comments/4vylzb/cant_add_google_account_on_windows_phone_10/

https://productforums.google.com/forum/#!topic/gmail/kw2ONRxN3Xk

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Here is additional information:

  1. Lumia 640 Dual Sim
  2. OS build: 10.0.10586.494
  3. It's occurred after updating to Win 10. Reset doesn't help(tried 3 times)

Was able to add Gmail account with Advanced setup > Internet email.

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Are you guys gonna provide a meaningful update? This issue has been clearly shown that is affecting a lot of users.

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Hi all,
I have found a workaround for the technically advanced. I'm afraid I don't have time to give a proper explanation right yet, but I will share the broad approach.

The problem is that Google decided to restrict the User Agent that is identified by Windows Phone webview. So, the trick is to, well, trick google into thinking we're using an accepted User-Agent. How?

  • Install and run Fiddler on a PC.
  • Get your PC's IP address.
  • Setup Fiddler to accept remote connections.
  • Setup Fiddler with the following filter:
Set Request Header.
    » First box (name): User-Agent
    » Second box (value): Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.82 Safari/537.36
  • Extract Fiddler's root HTTP certificate.
  • Copy that certificate to the phone (via whatever, for instance USB).
  • On the phone, use the file explorer app to find the certificate and double tap it. Import the certificate.
  • Change your wi-fi connection's proxy to the PC's IP address and port 8888, which is Fiddler's default unless you've changed it.
  • Try to add the account. It should work now.

Basically, what happens is that fiddler will be intercepting each call to Google and replacing the User Agent for one that Google still accepts. It is one **** of an hack, and Google should fix this (or Microsoft needs to scramble to update the user-agents).

Don't forget to undo the proxy configuration.

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RuiDSCraveiro, this is awesome and did solve the issue on my 650. Kudos and thanks!

Hi all,
I have found a workaround for the technically advanced. I'm afraid I don't have time to give a proper explanation right yet, but I will share the broad approach.

The problem is that Google decided to restrict the User Agent that is identified by Windows Phone webview. So, the trick is to, well, trick google into thinking we're using an accepted User-Agent. How?

  • Install and run Fiddler on a PC.
  • Get your PC's IP address.
  • Setup Fiddler to accept remote connections.
  • Setup Fiddler with the following filter:
Set Request Header.
    » First box (name): User-Agent
    » Second box (value): Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.82 Safari/537.36
  • Extract Fiddler's root HTTP certificate.
  • Copy that certificate to the phone (via whatever, for instance USB).
  • On the phone, use the file explorer app to find the certificate and double tap it. Import the certificate.
  • Change your wi-fi connection's proxy to the PC's IP address and port 8888, which is Fiddler's default unless you've changed it.
  • Try to add the account. It should work now.

Basically, what happens is that fiddler will be intercepting each call to Google and replacing the User Agent for one that Google still accepts. It is one **** of an hack, and Google should fix this (or Microsoft needs to scramble to update the user-agents).

Don't forget to undo the proxy configuration.

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This issue should be fixed now, please try adding your Google account again in the normal way.

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Question Info


Last updated January 26, 2021 Views 615 Applies to: