If you’re looking for a reliable and working favicon generator, I strongly recommend checking out http://www.favicon.cc/
It looks very simple and underpowered by it’s pretty amazing what you can do once you get the hang of it. Try moving the swatch around and applying colors to the blocks, before you know it you’ll be writing symbols that identify with your site.
Alot of webmasters decide to go without a favicon allowing themselves to miss the opportunity to give their website a pro touch