Favicon (short form of favorites icon) is a logo shown in the address bar of the web browser besides the URL or shown on the corner of the browser’s tab. This is a Pro feature in Weebly and follow the below steps to easily add favicon to free Weebly site without upgrading to Pro account.
Step 1 : Setup your favicon
The first step to adding your favicon is to get your favicon image. You can get one off of the internet or if you have your own download it. If you downloaded the image, click the
"Edit HTML/CSS" button under the theme tab.
Step 2: Upload your Favicon
Click on the “+” icon next to “Assets”, select “Upload File(s)” option from the dropdown and upload your favicon.ico file.
Name your favicon whatever you want. Don't make it too fancy though, you need to remember it. Next copy the code below:
http://www.<Your Site URL>.weebly.com/files/theme/<Image Name>.<File Format>
Now replace the <Your Site URL> with your website, <Image Name> with your image name and <File Format> with the file format.
Step 3: Linking Your Favicon
Now go to “Settings > Search engine optimization > Header code” and paste the following code:
<link rel="shortcut icon" href="Your Favicon Link"/>
Replace the "Your Favicon Link" with the link that you created earlier and press the green save button in the bottom right corner. Now publish your website you can see the results. It may take up to 5 minutes to update.
You Are Done! Enjoy Your New Favicon!