Private bookmarks are only available to you, and public bookmarks are available to all users. When you add a bookmark, it is private by default. However, you can make a private bookmark public, and vice versa.
Procedure
Open the
Bookmarks popover by clicking
on the toolbar.
Move the cursor over the bookmark you want to make public, and click the menu arrow that is displayed.
In the opened menu, select
Public bookmark.
The bookmark gets visible in the
Bookmark popover and can be applied by every user.