I'm new, need help, please.

just bought atv2, did jb, and now can’t install the addon, please, someone tell me what to do next so i can watch movie& tv show.thank a lot.

(i has to use firefox or exploirer is still ok?)

The support documentation is at http://support.firecore.com/home

Which of these steps (if any) ahve you attempted so far?  There are documents covering jailbreaking, installing the firecore software and the various firecore applications.

Thank you, i will.