I know it’s pretty easy to add a unique favicon.ico to each site in a multisite install. But any ideas for making each sites favicon.ico appear to be in the root directory of the site?
The end result would be http://example.com/favicon.ico and http://anotherexample.com/favicon.ico
I hope you are using different theme in each site
Just add this code in your header.php file.
Add your favicon in each theme.
For favicon in admin area.
Add the following function in your function.php file.