I wouldn't use the wipes. Why don't you place the seeds in a couple of teaspoons of sterile moist vermiculite or sterile moist sand and put them in a small zip lock in your refrigerator. When ready to bring back to warm, sow the entire contents of the zip lock.

Or if you have time with nights cold enough, chilly days with a further temp reduction at night might give them enough time in 4-6 weeks for the moist chill, sometimes a fluctuating temperature is more helpful. Sow and place the pot outdoors.

This is what I have done for seeds that need to be stratified.
Plant them in a container with damp seed starter mix.
Put the container in a plastic bag and store it in the fridge (back of the bottom shelf)
Label with the date you put it in and when to remove it. I use masking tape on the outside of the bag.
Also, mark your calendar when to remove it.
You can use any container. I like the strawberry containers because they have a lid. I put folded damp paper towel on the bottom and then the damp starter mix. Plant the seed and press them in lightly. Sprinkle a little more mix on top.
When you take it out of the fridge, keep it in a warm place until you see it has germinated. This can take a long time. I remember one time I did this - it wasn't until the middle of July before I saw anything growing.

I don't know anything about white fir tree seed. Maybe someone out there can help you with that.

Best wishes for successful growing!