NVDA screen reader on Firefox does not read the popup notification when user clicks on Save

NVDA on FF fails to read the popup notification when user clicks on the Save button.

 

Use FF+NVDA.
1) Create a landing page.
2) Drag and drop a container onto the stage.
3) Tab to Save button.

Notice the screen reader does not acknowledge the popup notification, instead of reading its alert banner.

 

This problem is under review and targeted to be fixed in a future release. To receive notifications when more information becomes available, subscribe to this Known Error article by clicking the Subscribe button at the top right of this form.