On this web site you will find the web application to import, edit, and save your favicons as well a tons of information on favicon.
Altough it may seem that the production on the Favicon Editor as been stopped, it is not the case; In the following months, some functionalities will be added, like the ability to preview your favicons in different browsers like Internet Explorer, Firefox, Opera etc. Stay tune for more update on the Favicon Editor. I will also be redisigning this entire page.