How do I Sort Bookmark Folders by Name (Alphabetically)

This doesn't work if you have many folders. How do you sort SEVERAL bookmark folders so that they each display in alphabetical order (NOT THE SUBFOLDER). The primary folder needs to be in alphabetical order and it's not - driving me crazy. Please help since this should be a very basic feature.

Cheers!

I tried to select a bunch of subfolders and, unfortunately, as soon as I right click to invoke the contextual menu for sorting the folders selection disappears and the menu appears only for the folder where I right clicked.

Menu Bookmarks -> Edit Bookmarks -> Right-click on Favorites -> Sort By -> Name