When we install a fresh copy of drupal, we can see that on the top bar icon, there is an image of drupal. This image is known as 'favorite icon' of a site. This is a default image which is provided by drupal. You may replace this with your custom image. If you want to know how you could change the favorite icon, please read on.
To upload our custom favicon, follow the below steps.
Step 1: Log into your Drupal 7 Admin panel. Using the top menu area, click on the Appearance option. This will show up the themes page where it lists all themes installed within Drupal 7.