A favicon (short for favorites icon), also known as a website icon, shortcut icon, url icon, or bookmark icon is a 16×16 pixel square icon associated with a particular website or webpage. A web designer can create such an icon and install it into a website (or webpage) by several means, and most graphical web browsers will then make use of it. Browsers that provide favicon support typically display a page’s favicon in the browser’s address bar and next to the page’s name in a list of bookmarks. Browsers that support a tabbed document interface typically show a page’s favicon next to the page’s title on the tab. The Microsoft Windows Shell also uses favicons to represent “Internet shortcuts” to web pages.
FavIcons are implemented in Following ways: Favicon Can also use PNG, JPEG And GIF Images.
Link Tag goes in Head Section of html page.
If you’re like me, you’ve visited sites like PayPal or GoDaddy and wondered why, in Firefox, they have a large green Favicon, unlike the smaller ones we’re used to seeing. So, what’s that all about?
Mozilla has a newer feature included that appends the URL of the site onto the Favicon (along with the green background) to show that it has a valid SSL certificate. Clicking on a Favicon in Firefox brings up a dropdown with some information as you can see below.
Clicking on the More Information… button brings up the Page Info window.
You can see that on sites with SSL Certificates there is additional information on the Security tab of their Page Info windows. Compare these to your site’s to see how they differ.
Another use of the Favicon in Firefox is the ability to drag it to your Bookmarks or History menu items or sidebars to easily save your favorite sites. You can even drag and drop it onto your computer’s desktop.
Mozilla Firefox 3.0.11 (Portable) – Secure
One-click site info: Click the site favicon in the location bar to see who owns the site and to check if your connection is protected from eavesdropping. Identity verification is prominently displayed and easier to understand. When a site uses Extended Validation (EV) SSL certificates, the site favicon button will turn green and show the name of the company you’re connected to.