"Last week's result was a one-off. It's the sort of thing that happens once in every 20 or 30 games when everything goes for you. Every shot you have goes in, every tackle is made and every block is made and they fail to take their chances," said Britton.
"You don't get carried away as you will get punished on Saturday. We have experienced players in the squad who will keep our feet on the ground and obviously the manager and staff will make sure of it.
"But if you get too far ahead of yourself we will lose on Saturday, there is no doubt about it."
Swansea's next match comes at home against West Ham United tomorrow.