If you share your shop’s url in facebook some times you notice the “Shop powered by Prestashop” in your Facebook wall.
So if you want to remove it go to your Back Office:
PRE FERENCES-> SEO ->URL -> edit index, and change the Meta description field corresponding to the index page as following:
PREFERENCES for 1.6 and Advanced Parameters for 1.7
SEO &URL:
Edit Index Page:
And hit save.
Facebook Comments Box