go to a pokemon center or anywhere that has a pc, talk to the pc and go into any of the modes that let you view your pokemon, You can release them either from your party or from your PC.
you use rock smash or streagth
In Pokemon firered you can't, but in Pokemon leafgreen you can get it then trade it to Pokemon firered.
There is no Pokemon convention in firered.
in fuchsia city, the man's house next to the Pokemon center.
To get Pokemon firered on PC download a vba and Pokemon firered ROM
Yes there are shiny Pokemon in firered
Get strength by finding the wardens teeth in the safari zone and he will give it to you.
It is not possible to get a ninth badge in Pokemon FireRed. You can only get eight badges in Pokemon FireRed.
You cannot get it in Pokemon FireRed. It doesn't matter because it is not necessary in Pokemon FireRed.
skill i think you mean hm then you need to go to fushia city then the house beside the Pokemon center
Celebi cannot be found in Pokemon FireRed. The only way to get Celebi in Pokemon FireRed is receiving it from an event distribution. These events are sadly no longer supported for Pokemon FireRed.
you have to get sneasol by trading in leaf green. You can not get that Pokemon in firered.