User Guide

Here you can view and edit some of the default server settings. Most of
the time, you shouldn't touch the first four fields (PS directory, Homepage
file, Homepage file, Shop domain name for SSL) with knowing exactly
what you are doing. One mistake could break your shop.
Change the "Friendly URL" radio buttons settings if you know that your
server can support URL rewriting. If not, leave it at "No". Likewise, only
change the "Automatically redirect to Canonical url" radio buttons settings
if you know what you are doing. Canonical URLs are excellent ways to to
improve SEO, as they help avoid duplicate content on your shop (more
than one URL for the same actual content).
Products
This sub-tab contains a slew of preferences pertaining to how your
products are to be handled and displayed by PrestaShop.