Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Login Loop for embedded Stream Video

  • 5 replies
  • 0 have this problem
  • 3 views
  • Last reply by Mike Kaply

Jens.Voigt
Jens.Voigt
more options

We have configured Windows Single Sign On to Microsoft 365 in Firefox 102.6.0esr (64-Bit).

We have embedded a Video from the new Microsoft Stream on SharePoint Online into a SharePoint 2019 onpremise Site via the provided iFrame. Here every user gets an endless Login Loop (see Screenshot).

If you open the deeplink to the video, Single Sign On works perfectly.

And this also works in Microsoft Edge, why the Microsoft support is not willing to analyse this issue further.

Do you have any ideas how to narrow down the problem?

We have configured Windows Single Sign On to Microsoft 365 in Firefox 102.6.0esr (64-Bit). We have embedded a Video from the new Microsoft Stream on SharePoint Online into a SharePoint 2019 onpremise Site via the provided iFrame. Here every user gets an endless Login Loop (see Screenshot). If you open the deeplink to the video, Single Sign On works perfectly. And this also works in Microsoft Edge, why the Microsoft support is not willing to analyse this issue further. Do you have any ideas how to narrow down the problem?
Attached screenshots

Modified by Jens.Voigt

All Replies (5)

Mike Kaply
Mike Kaply
  • Moderator
more options

That samesite error concerns me. Samesite cookies shouldn't be turned on for Firefox.

If you don't enable Windows single signon, can you login and the video works?

Jens.Voigt
Jens.Voigt Question owner
more options

Thank you for the quick answer. Unfortunatly the Same Site Cookie errors are normal and built in by Microsoft for SharePoint onpremise, they should not be the problem.

I now set Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Mozilla\Firefox\WindowsSSO to Zero, cleared all cokies and tried again. If I now use the deep link I get the login prompt. However on the site with the iFrame I still see the login loop. Anymore ideas on that?

Mike Kaply
Mike Kaply
  • Moderator
more options

Can you try going to about:config and searching for

network.auth.choose_most_secure_challenge

and set it to false and see if it helps?

If it doesn't, we'll switch the conversation to Bugzilla and get some logging together.

Jens.Voigt
Jens.Voigt Question owner
more options

Setting this parameter also makes no difference here. How to continue in Budzilla?

Mike Kaply
Mike Kaply
  • Moderator
more options

Can you create an account here?

https://bugzilla.mozilla.org/home

And I'll work with you to get the bug opened.