It's great to ignore them when you can, but believe me it's not possible when your dog is freaking out so much they're trying to climb under/behind the tv, into the fireplace, getting into a corner and tangled up in cables etc. etc. Not safe to ignore them when they're in danger of hurting themselves.
I have four dogs and have previously owned other dogs and Sno is the first dog to be at all bothered by fireworks so it's not me causing his fear. I just do whatever I can to help him through it If he goes to his crate I leave him be, if he's about to hurt himself, I intervene.
Am very thankful that so far this year the fireworks have been minimal and Sno's reaction has been the best yet. Hoping desperately this continues tomorrow night.