Hi Ekaterina & bob3160,
first of all thanks for replying...
thank you bob3160 indeed it's exactly that
I think it's a pity we can't synch in the same time bookmarks and extensions installed from the chrome's store.
Currentely only bookmarks are synch, so the entire of the browser's configuration is not the same to an another computer.
Thanks again and sorry if my first explanation was not enough clear.
Philippon.