A favicon is the name of the small image that appears in your browser's tab for every website you visit.
To upload your Favicon:
1. Click on the Design panel and go to your Sitewide tab on the right-hand side. From there, you will select Header & Logo.
2. Once in the Header & Logo, scroll down to Favicon.
3. Drag in your favicon PNG file or click to upload your favicon under Image.
This icon must be in PNG format and have a minimum of 256 pixels and a maximum of 512 pixels per side. Transparency is allowed.
Click Save and then Publish and you will see your new favicon on your live website!