Make sure your footer is visible and highly legible. While footers aren't a part of primary navigation, many users rely on them as the last resort when looking for information. That's also where they expect to find certain types of information, such as social media links and contact details.
The footer should be visible without being too prominent. Use a legible font size and color and avoid using decorative fonts. Most importantly, do not hide or collapse the footer, as people expect it to be there at the bottom of each page.