For a free account follow the next steps:
It’s not difficult at all.
First of all make a logo and save it as a .png format. Size should be 16x16 or 32x32.
Go to contvertico.com, upload your .png file and convert it to .ico.
Save the image.
If you have done that, go to your Weebly account:
Go to design (on top of the page) > Edit HTML/CSS (bottom left) > upload your .ico file under files (left side).
Get the link: http://YOUR NAME.weebly.com/files/theme/IMAGE.ico
Upload your file(.ico) to a page on your website. ( Create a new page and hide it)
Publish and get the link.
Same for option 1 and 2
Go to Settings (on top of the page) > Go to SEO > Go to header code and paste this code:
Delete “Your image link” and add your link.
Example (option 2):
So that’s it. Save > Plublish and see your result.
Click here for the video tutorial: http://www.youtube.com/watch?v=mDw1aVzLjhk