Here in AZ they're not illegal during certain times of the year.
You can even buy them in grocery stores. But don't get me started
on that one.
I'm not a personal fireworks kinda gal. I love the professional
ones, but events from my childhood have scarred me for life. I
stepped on a spent firecracker when I was a child and burned my
foot badly. When I was about 7, the neighbor girl was holding
firecrackers and she panicked and it blew up in her hand. And
another time, we were at the beach and someone got too close to
someone else with the sparklers and there was a serious medical
emergency which I won't detail because it's kinda gross.
Fireworks are pretty but not something I think amateurs should
be fooling with.