Hello dave ,

 MSN is designed on Internet explorer, our Engineering team has released the work around to help us to browse the websites on MSN Explorer.

New feature “Website Support Management” has been added to MSN Explorer.

To access this feature please follow the below steps


Sign in to MSN Explorer
Click on Help & Settings
Settings
Website Support Management
Enter the website & click on Add
Save changes
 

Any website which is added under website support compatibility will always open up on Microsoft Edge automatically.
 
Hope this help us!

Thanks

MSN Support Team