Endless loading screen in LMS in Mozilla Firefox browser

Created by Boris Chekaev, Modified on Wed, 04 Oct 2023 at 03:35 PM by Ksenia Chebaeva


On attempt to access the LMS via Mozilla Firefox the following white screen appears: 


By default third-party cookies are not allowed in Firefox: by default it is cross-site tracking cookies and it isolates other cross-site cookies option. 


    1. In Firefox open Settings > Privacy & Security, check that Enhanced Tracking Protection is in 'Standard' mode:

    2. Scroll down to 'Cookies and Site Data', click Manage Exceptions.

    3. Type in address 'https://idp.constructor.app' and click Allow:

    4. Click Save changes:

    5. Open LMS website and log in.

Was this article helpful?

That’s Great!

Thank you for your feedback

Sorry! We couldn't be helpful

Thank you for your feedback

Let us know how can we improve this article!

Select atleast one of the reasons

Feedback sent

We appreciate your effort and will try to fix the article