2001 Toyota Tacoma Water dripping on the passenger side flo

I notice when the air conditioner is running I'm getting water dripping on the passenger side floor comming from the floor vent and what looks like an air intake plastic box under the dash. I don't notice any dripping on the ground where it normally drips. Not sure if something is clogged or what would cause this. Is this a complicated fix (removing dash) or I'm hoping an easy fix that I can do myself. Please advise

Thank you,
Cathy