Favicon: .ico or .png / correct tags? [duplicate]
For compatibility with all browsers stick with .ico. .png is getting more and more support though as it is easier to create using multiple programs. for .ico <link rel=”shortcut icon” href=”http://example.com/myicon.ico” /> for .png, you need to specify the type <link rel=”icon” type=”image/png” href=”http://example.com/image.png” />