Find the Freebox administrator password?

Good evening,

I believe you are probably referring to the administrator password for Freebox OS.

This password is not visible; it cannot be found in the account management accessible via https://portail.free.fr/

If you want to change the password, there are different ways to proceed:
https://www.choisir.com/box-internet/articles/176278/comment-configurer-linterface-freebox-de-free
(see the settings for the interface on this page).

What is well conceived is clearly expressed,
And the words to say it come easily.
(Boileau)