A favicon (short for Favorite icon), also known as a shortcut icon, Web site icon, URL icon, or bookmark icon, is a file containing one or more small icons, most commonly 32×32 pixels, associated with a particular Web site or Web page. A web designer can create such an icon and install it into a Web site (or Web page) by several means, and graphical web browsers will then make use of it.
Browsers that provide favicon support typically display a page’s favicon in the browser’s address bar and next to the page’s name in a list of bookmarks.
Just paste the following into your WordPress Theme’s function.php file, save it, and you’re done.
function blog_favicon() { ?>
<link rel="shortcut icon" href="<?php echo bloginfo('stylesheet_directory') ?>/images/favicon.png" >
<?php }
add_action('wp_head', 'blog_favicon');
Change the favicon url as per your need. Also, please note that if the wp_head() function haven’t been implemented in your theme, this recipe will not work.
Other Ways:
1) Download All in One Webmaster plugin.
2) Put below code to Header Section. Change link pointing to your favicon icon.
<link rel="icon" type="image/x-icon" href="https://crunchify.com/favicon.ico" /> <link rel="shortcut icon" type="image/x-icon" href="https://crunchify.com/favicon.ico" />
Sample:
