Fireworks this year here in Sakon Nakhon were 'almost' nonexistent. A few could be heard, almost hours apart on new year's eve day. Heard just a few fireworks throughout the evening. Spent the early evening with friends and was asleep by 9:30 pm. Normally I would wake up at midnight because of the fireworks, not so this year.
Many of these restrictions will continue until the 100 day mourning period ends, around January 22. However there is also the 1 year mourning period during which further restrictions may apply