------------------------------------------------- Use the following code if you are using PNG image ------------------------------------------------- function add_favicon_png() { $favicon_url = 'https://..favicon.png'; echo ''; } add_action('wp_head', 'add_favicon_png'); ------------------------------------------------- Use the following code if you are using ICO image ------------------------------------------------- function add_favicon_ico() { $favicon_url = 'https://..favicon.ico'; echo ''; } add_action('wp_head', 'add_favicon_ico');