Sort, alphabetize, or rearrange bookmarks in Safari on Mac
You can sort, alphabetize, and rearrange bookmarks in the Safari sidebar.
In the Safari app on your Mac, click the Sidebar button in the toolbar, then click Bookmarks.
Drag a bookmark or folder to a new location.
To copy a bookmark, Option-drag it.
To sort bookmarks in a bookmarks folder, Control-click the folder in the sidebar, then choose Sort By > Name or Sort By > Address. Address is the website URL.