How Do I Explain Being Fired?

Dear Career Experts, I just got fired supposedly for poor performance. Although, I heard my company isn't refilling the position. I feel like I was let go because the company was doing poorly, but is that okay to say in an interview? Our Twitter Advice Project (T.A.P.) is no longer an active campaign. To find an answer to the above question, please use the "Search" box in the right-hand column of this website.