Ruby pervious cookie loading

Ok, I have Googled for over 3 hours and I can't seem to find, or maybe I'm just not asking the right question, for a way to load a cookie session made in Firefox into ruby so I can be logged in when the code executes. I found about how to make a new session but not about logging in or loading a cookies values so it thinks its the browser.

What I found so far:

http://ruby-doc.org/core/classes/CGI/Session.html

This is the best I found. Any help would be nice. Thank you.

Thanks MoshBat I'll look into it. appreciate the guidance.