Preheat oven to 350 degrees F (175 degrees C). Grease cookie sheets.
In a medium bowl, cream the shortening and sugar. Stir in the pumpkin and vanilla. Sift together the flour, salt, baking soda, baking powder, and cinnamon; stir into the creamed mixture. Then mix in the butterscotch chips. Drop dough by teaspoonfuls onto the prepared cookie sheets.
Bake for 8 to 10 minutes in preheated oven. Allow cookies to cool for a minute on cookie sheets before transferring to wire cooling racks.