Massachusetts is the only state in the U.S. where it is illegal to sell, use or otherwise possess fireworks of any kind as a private citizen. Many communities across the state host public fireworks displays at their July Fourth celebrations. But without a license and permit, the statewide law prohibits fireworks of all kinds, including sparklers, firecrackers and any other comparable device that's been designed to produce "a visible or audible effect," according to the state government.

https://www.cbsnews.com/news/map-states-where-fireworks-legal/