How can I save the windows I have previously opened ?

[Marwa Shams]

How can I save the windows I have previously opened so when I Press a button "back" I can show the exact prev. window with its contents .
For example:-
I can open a new window by button clicking on the current window and so on ..
and when I close the existing window I find the prev one but I can't navigate between it's controls by keyboard "case of non-touch mobiles"
It appears as not working.
So I want to press a button "back" that closes the existing window and retrieves the previously opened one without these problems.