Today we’ll learn how to do it with Firefox,
In Firefox, you’ll click the little book icon at the top right of your browser.
Select Bookmarks from the drop-down menu.
When the menu opens, scroll to the bottom and choose Show All Bookmarks. You can also press Ctrl + Shift + B.
From the left pane, select any of the files under All Bookmarks.
Right-click and choose Sort by name.