Open functions.php in your WordPress themes folder (usually located in /wp-content/themes/{theme_name}/) and paste the following code to the bottom of the file.
function add_favicon(){ ?>
<link rel="shortcut icon" href="<?php echo get_stylesheet_directory_uri();?>/images/favicon.ico"/>
<?php }
add_action('wp_head','add_favicon');You can generate .ico files and more by searching “favicon generator” on Google.
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