Where do you put transmission fluid in a 1995 Pontiac firebird?

Same place you check it.

B. hello it's Randall, if it's a manual it does have fluid & does require changing.Jack it up & on side of transmission (usually pass side)you'll see two big like plugs( I use ratchet w/ no socket fits perfect) in side of trans one down low for drain,then one about half way up side to fill.manuall tells type,fill level etc hope it helps