A favicon is a small, square image that appears on the browser's tab (if the browser supports tabbed browsing) and on the left side of the site URL in the address bar.
[Image:Favicon.png]The default icon is the Joomla! logo, but you may change it to suit your site.
By default, the Joomla! favico can be found in the /images directory. Some templates, however, will contain code that redirect the browser to /templates/template_name/icon. To determine where your new favico should be, examine /templates/index.php and look for code that resembles: <link rel="shortcut icon" href="http://yoursite.com/templates/your_template/icon/favicon.ico" >
1. create a 16x16 pixel image. You may use graphic software, or an online tool such as: http://antifavicon.com/
2. convert to ico format
3. copy it to the path outlined above.