An easy way to modernize your website is to add a favicon - which is the small postage stamp-like image displayed in Firefox and IE7 next to the address bar and the tab name.
Adding a favicon to your website is easy and doesn't require modifying any html or code files:
1. Go to www.favicon.cc and download an existing favicon or create your own. Download the icon and save it locally as favicon.ico
2. Upload favicon.ico to the root of your website.
Firefox and IE7 will automatically display your favicon if it's in the icon image format, named favicon.ico, and available in the root of your website.
With SharePoint, one option is to put the favicon.ico in the root directory of your site collection's IIS virtual directory. However if you want to deploy the favicon.ico with a solution to either the content database or the _layouts folder, then you can point the browser to your favicon with a link tag in the head section of your page or master page:
<link rel="shortcut icon" href="/_layouts/MyLayoutFolder/Images/favicon.ico">