Let's take it one by one:
1) starter circuit - troubleshooting article here:
http://www.austinthirdgen.org/index.php?pid=38 It will help you identify the faulty component.
2) door locks - they use the ACC fuse and the PWR ACC breaker - check them. If they are alright, follow this troubleshooting article:
http://www.austinthirdgen.org/index.php?pid=32
3) passenger window - swap the window switches - if the window malfunction changes sides, it's the switch. If not, it's the wiring or motor.
4) brights - the hi/lo beam switch is very commonly out of adjustment - article on how to adjust it here:
http://www.austinthirdgen.org/index.php?pid=16
5) for lights - not sure what year Firebird you have (they used different switches, IIRC) but it sounds just like a bad switch.
Hope this helps.
Lou