What is the diff between these two tags? (favicon)

Im going to add a favicon to my site, but realized that a few online sources have different ways of linking the tags...

what is the difference between these two tags?

What does mce_href do? and what is the diff between declaring it as that and type="image/vnd.microsoft.icon" ??


Thanks!

<link rel=”shortcut icon” href="Http://www.FLORIDABODYWORKFORUM.COM/favicon.ico" mce_href="Http://www.FLORIDABODYWORKFORUM.COM/favicon.ico">

Code (markup):

<link rel="shortcut icon" href="Http://www.FLORIDABODYWORKFORUM.COM/favicon.ico" type="image/vnd.microsoft.icon">

Code (markup):

 

it's probably a attribute created by TinyMCE or similar text editor. It is probably supposed to be removed automatically. You should probably delete it as it wont do anything but invalidate your html