Can i manually add photoshop to adobe extension manager?

Ive been searching and cant seem to find the answer that specifically pertains to my questions. I have photoshop cs6 - i downloaded a plugin that is a .zxp and requires using the extension manager to install it. Ive never used the extension manager before, and when it opens and loads - it detects other adobe products, but does not detect photoshop. Is there a way to manually add photoshop to the manager? Or is there a way to move files around so that the manager detects photoshop? I am unable to install the zxp file as it keeps telling me that photoshop was not detected on my system.