Hi, do you know if I have to create an app specific password for Fidelity.com? I did it for my Betterment account but I cant find that option in Fidelity.

You should not need to set up a specific user name/password for the app. However, you may need to contact Fidelity to authorize access for third parties.

if you change your password for tax purposes, you won't be able to go back to the original password.

Fidelity won't allow you to reuse passwords.