If you have kids I'd teach them to go away from the fire and to crawl out. This could add 30 seconds of breathable air. They also need to know how to unlock and open the front door with their eyes closed. I would have the toad/car as the meeting place.
You do need to open your safety windows, but until you know if they are hinged you need someone outside capable of holding it from falling. I sprayed my rubber seals with silicone after I finally got them open 7-8 years ago and they still open easily and fortunately they are hinged so checking them is easy.
If you decide to try and put a fire out you need to attack the base of it and you should be able to move towards it. If you have to back away, it's past time to GET OUT.