The answers provided (at the time of this post) are link only answers so I thought I would summarize the links into an answer and what I will be using. When working to create Cross Browser Favicons (including touch icons) there are several things to consider. The first (of course) is Internet Explorer. IE does … Read more
Try http://en.faviconico.org/ online favicon converter. I used this site to convert PNG file into favicon, and the favicon file is still with transparent background.
Simply put a file named favicon.ico in the webroot. If you want to know more, please start reading: Favicon on Wikipedia Favicon Generator How to add a Favicon by W3C (from 2005 though)
You can make a .png image and then use one of the following snippets between the <head> tags of your static HTML documents:
Update for 2020: Sticking to the original question of 16×16 versus 32×32 icons: the current recommendation should be to provide a 32×32 icon, skipping 16×16 entirely. All current browsers and devices support 32×32 icons. The icon will routinely be upscaled to as much as 192×192 depending on the environment (assuming there are no larger sizes … Read more
There are actually two ways to add a favicon to a website. <link rel=”icon”> Simply add the following code to the <head> element: PNG favicons are supported by most browsers, except IE <= 10. For backwards compatibility, you can use ICO favicons. Note that you don’t have to precede icon in rel attribute with shortcut … Read more