I was wondering how one can have multiple sizes of a favicon and have the correct size be served to the respective browser/device that is viewing the site.
I've read that having multiple sizes is good practice since your site can be viewed from the traditional browser, but it can also be viewed from tablets and smartphones. Thus having the perfect favicon size available for the device viewing the site is preferable.
How does one do this? According to my knowledge you have a 'favicon.ico' in the root of your site and that's it. But dealing here with multiple sizes e.g. multiple files, throws me off a bit. How do you accomplish this?
Also on a side note, I see that Adobe Photoshop and Illustrator doesn't have the functionality to export to .ico file format, any tips?