A favicon is the small graphic displayed in the browser address bar next to the URL. You can select an emojii or upload your own.
Step 1. Go to Settings
Step 2. Scroll to the Favicon section
To pick an emojii, just tap or click on your favorite.
To upload your own image, tap or click on the Upload your own link and drag the file onto the target area. (You can also click or tap the section to select a file from your device.)
The favicon graphic should be an ICO or PNG file format, and 144x144 pixels.