Using https make page setup menu disappearing

I try to make my website working under https URL (under concrete5), however when I change URL canonique from “http” to “https”, I lost the page setup menu.

My site seems working from visitor point but I am unable to make change with firefox or Chrome*.
Does some one have a solution?

*An other strange thing is from the start I am unable to make the page setup menu work under safari.

What is the web address for your site?