killersup10 is correct... this problem has been extensively discussed before. The only thing you can do is take into account that the volume can be louder for some games when they are playing the ArmorGames loading sequence and turn down your volume before opening the game page. If you do this often, you will soon become used to it and do it automatically...
Seriously... This is the kind of ridiculous "Warning: the content of this [steaming coffee that you actually ordered] cup can be hot" problem.
This is totally the end party fault. Reduce your sound before you play, then get it up at the level you want. Or if you don't want to do that for a reason or another, simply get good headphones with a volume meter incorporated in it...
MrdayCee, you could probably lock this now. The question has been answered, and the rest of the people are just repeating the answers that were already said.