This worked for me (after losing private mode after 8 update) ;
You need to add the Private icon to your settings/toggles menu -
Swipe down from top, extend the toggles menu by it dragging down.
Press the 3 dots in the top right corner. Press Button Order.
Scroll to the bottom, swipe to the next page if you have too anf find the Private Mode icon. Drag the icon to the top with your current toggles. Job done. Now use your private folder like old times
