which menu page do you mean ?
do you mean the favorites bar in chrome ?
if the whole bar is missing you can right click in a gray area where it used to be and select show bookmarks bar all the way on the bottom of the menu that pops up
if its just facebook that is missing you can go to
and then click the little open star at the right side of the white box where it says www.facebook.com/ on top and then select bookmarks bar from the dropdown box and then hit ok
if this is confusing i can log into your computer remotely to do it for you pretty easily