Firefox Top Sites not show up in Private Window mode

[magic (Magic Display)]

Hi Jonathan, I am sending you two screenshots on the Ubuntu system.

The first is the normal Private Window, then I clicked on a new tab and it shows the Top Site Tiles.

When I do the same thing on the Fed.33 OS, it just gives another Private Window (purple 2 X)

Don’t know why it would be different in Fed.33?

Thanks

Magic