This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Bug with Office 365 POP Oauth2 method?

  • 4 tontu
  • 2 am na jafe-jafe bii
  • 5 views
  • i mujjee tontu mooy bufferflow

more options

Trying to move from normal authentication for Office 365 POP account to OAUTH2, and the window that opens to authenticate is rendered with a bunch of bugs. Any idea if this is Thunderbird or Office 365's problem? Or how to resolve?

Trying to move from normal authentication for Office 365 POP account to OAUTH2, and the window that opens to authenticate is rendered with a bunch of bugs. Any idea if this is Thunderbird or Office 365's problem? Or how to resolve?

All Replies (4)

more options

My image upload didn't work, see here: https://imgur.com/a/5L0Y1we

more options

It is usually ok to post image on comment after creating the question. If it fails - it's usually due to a bad gateway issue - refresh the page and then try again.


Have you set up to allow cookies in Thunderbird? If no then make sure it is set up.

  • Select 'Menu app icon' > 'Preferences' > 'Privacy & Security '

Under 'Web Content'

  • Select 'Accept cookies from sites'

You mention 'bugs' in the view

Is that the first view you see when it opens? Is that what you see after entering password and clicking on Sign In ? Image below.

more options

Yes, we are accepting all cookies.

Other than the black boxes added to obscure identifiable information this is exactly what we get. Missing text/labels, no buttons to proceed. We then tried OWL plugin to set up as an Exchange account and the authentication for that also opens in a similar window with missing labels and controls on the form.

This is running on latest automatic update of Thunderbird as of today.

more options

Had the same problem, found a solution [https://support.mozilla.org/en-US/que.../1392072] by user "Tussilago". Here is what solved it for me: "It was enough to remove "general.useragent.override" entry in the Config Editor in Settings and restart Thunderbird."