How long can you keep thawed sealed chicken in the fridge before you cook it?

I assume you are talking about raw chicken. It depends on how fresh (or old) it was when you put it in your fridge, but Id say 5 days at most The smell when you open it should tell you if its still OK. Does it smell OK & normal or off . If its off Don't eat it . If its slimy that is a sign its on the way to being bad too. If you haven't cooked a fresh & Raw meat product for about 3 days of of it being in your fridge, Freeze it.