Generally, you would want to look at whether these footer links that you are placing will help your users in any way.
For example, if your footer contains a link to your blog, contact page, about page, links to your popular pages, etc., then there shouldn't be any problem.
However, some websites are stuffing their footer with links such as Real Estate in Florida | Real Estate in New York | Real Estate in California, etc. These are unnecessary for users and clear signals to Google that you are trying to pass link juice with commercial anchor text.
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by Wayne Liew