It was important for firefighters to be aware of where the explosives were stored for safety reasons, Mr O'Donoghue said.
"If there was a fire at night in one of those premises and we were unaware that it had fireworks stored in it, it can be really dangerous to our firefighters," he told NZME News Service.
"I know of a hunting-and-fishing-type store for example which already has things in it that go bang.
"Sometimes people sell them out of caravans, tents, shipping containers in carparks. Even advising us where they're stored at night...if we're aware of it, it enables us to be safer as well."
Mr O'Donoghue said people were being encouraged to attend public fireworks displays and, if they were lighting fireworks at home, to use common sense.
Firefighters attend about 300 fireworks-related call-outs every year including several "close calls" that could have been avoided, the Fire Service said.
"We're still concerned because there are still too many incidents each year and unfortunately it's kind of the minority of people that spoil it for the rest," Mr O'Donoghue said.
"If people take a bit more care, hopefully we can have a safer fireworks season."
The SPCA is delivering a similar message - as well as calling for a blanket ban on private fireworks sales.
Chief executive Ric Odom said pet-owners needed to be aware the danger of fireworks lasted long after Guy Fawkes.
"Fireworks are traumatic for animals. The loud, unexpected bangs are distressing...it can cause them to run away creating more safety issues," he said.
"There is only one solution in the SPCA's eyes and that is to ban firework sales to individuals and allow people to enjoy controlled public displays only."
Fireworks were banned in public places across Auckland in 2013 but they can still be let off on private property.
Auckland councillor Cathy Casey said the ban resulted in no fire call-outs in Auckland public parks last year - but it was still a busy night for animal management officers.
"The ban is working and allows people and their pets to enjoy public places without the nuisance and risk of injury from the uncontrolled use of fireworks," she said.
"Please remember that your pets need your reassurance, and if you cannot stay home with them, ensure they are safe and very well confined."
Council principal rural fire officer Bryan Cartelle said people needed to be cautious if they were lighting fireworks at home.
"Auckland is experiencing changeable and windy weather which increases the fire risk," he said.
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Top tips for Guy Fawkes:
*Read and follow the instructions on fireworks - but make sure to read them with a torch, not an open flame.
*Light fireworks in a wide-open area. Keep them away from anything that could catch fire.
*Keep a bucket of water or hose handy.
*Always let an adult light fireworks.
*Stay sober.
*Keep all unlit fireworks in their box or bag until you are ready to light them.
*Leave dud fireworks alone. Trying to relight them is unsafe.
*If you do get burned, hold your burn under running water for 20 minutes.
*Think about others - put fireworks away after 10.30pm.
*Point fireworks at the stars, not your mates.
*Pet-owners are advised to stay home with their pet and keep them indoors, with curtains and doors closed.
