We are celebrating many festivals and on many of our festive occasions, we 'fire' crackers. This has by now become customary.
The recent fire in the Sivakasi fireworks/crackers factories is due to non-compliance of proper health and safety rules and regulations.
Authorities there, should see to it that health and safety rules and regulations are strictly followed.
These are two different things i.e. fire and killing of human beings due to non-compliance of safety rules (although the authorities there will not accept this truth) and 'firing' crackers.
I am basically against 'wasting' of money on this type of things. The money can be better utilized by donating the same to charitable organisations. However, we do 'fire' some crackers on the occasion of our festivals.