HELP- Can you keep frozen food refrigerated in the fridge or will it go bad?

The reason why I’m asking is due to me not having my mini fridge yet. So I don’t have a freezer yet only a tiny cooler fridge. I want hashrowns eat all next week but they come frozen and is it okay leave them in the fridge and cook them on my mini griddle or microwave? Will they spoil if they aren’t frozen?
HELP- Can you keep frozen food refrigerated in the fridge or will it go bad?
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