Favicon.ico in subdomain?

Pick one of the favicon plugins from the repo.

link in the nav bar above.

This: http://wordpress.org/extend/plugins/lettoblog-favicon/ works fine in a multisite setup. Network enable, then enable in each sub-domain site.

Copy your favicons for each site (unique names, e.g. favicon1.ico, favicon2.ico) to public_html/wp-content.

Then in the favicon settings, point to “http://example.com/wp-content/favicon1.ico” etc.