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No, it can live in the cupboard if unopened, but once opened, it should be in the fridge, just like brown sauce.
Edit; according to Heinz themselves;
"Because of its natural acidity, Heinz Ketchup is shelf-stable. However, its stability after opening can be affected by storage conditions. We recommend that this product be refrigerated after opening."
Ketchup in the fridge, Ed? U mad bro.