HOW TO ADD FOLDER ICONS TO THE DOCK (MAC OSX)?

Facebook, Gmail, folders and other things are basically as native to me as applications, and you really would like
to have them on the dock. But you noticed that the .URL extension isn't supported by Safari or Mac Firefox. So how can you do this?

STEP 1: Set in your screen side by side both, your browser ( Safari, FIrefox...) and the folder Sites (Macintosh HD/Users/"Your Name"/Sites.

 

STEP 2: Drag the small icon and the Address bar to the "Sites" fodler.

 

 

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