Login

I use Community Builder on my watchawear.com website. I use my site/database to drive my Android App.
In the App, I use the Community Builder login as the member access.
I need to know where the cookies are stored so my developer can fix my app,

Here is my dev's request:

"The problem we are facing with app login is due to Joomla cookies
Check where Joomla is sending these cookies: First time successful logins set cookie joomla_user_state=logged_in, subsequent do not.
* Unsuccessful logins set jfbconnect_permissions_granted=deleted"

Can anyone please explain where the cookies are in fact stored and why, 2 updates ago, the login proccess must have changed nad is now causing the failed logins on my app. The website works fine.
Also, I have deleted jfbconnect

We don't manage the login cookie. That's entirely on Joomla. It's a single session id cookie and the session is stored in _session. jfbconnect is a 3rd party Joomla extension and also has nothing to do with CB.