Welcome to 78TA! We have some members here who have the 3rd generation Firebirds, but as mentioned most of us have second generation (1970 - 1981) cars.
Well, let's start with the basics.
Are you sure you've replaced all the fuses that were popped? You need to check them with a meter for continuity, really, because they can and do fail in ways not visible to the naked eye sometimes.
Keeping in mind that this is a computer-controlled car, have you tried just disconnecting the battery and letting it set for a while? With electronic systems this is sometimes needed to get them to reset properly. It's like having to reboot your computer or your modem. In order to make sure leave the battery disconnected for a little while -- 5-10 minutes should do it. You can check all the fuses with meter while you're waiting.
If those two suggestions don't get it, then it's probably time to see what codes the computer is throwing. Those would probably narrow it right down for you. I'm not up on later model GM controls or the error codes so you'll have to find somebody with more knowledge about that than I.