Shutterfly extension discontinued

This question was posted in January:

"Upload from Mac to Shutterfly

When I try to upload pics to Shutterfly from my Mac using Shutterfly Mac Photos extension, I get an error message saying I've entered the wrong username/password for Shutterfly. It doesn't appear to be a Shutterfly problem, because I can log in to Shutterfly using the same username/password combo. "

I just spoke with Shutterfly about the same issue. They told me the Shutterfly extension has been discontinued, and they have no information about a new product being provided.