First, click on the link for the Zaffre storefront from the Bookmarks Bar.
Navigate the storefront, browse items, and maybe add a few select items to your cart!
Verify everything is working correctly.
Right-click on the link in the Bookmarks Bar and choose "Open in New Tab" so as to not affect any of your active windows
Now click on the link for the Haverford storefront in your Bookmarks Bar. What do you notice?