Netscape bookmark management

["John Okell" <j.okell@virgin.net>]

I run Netscape both at work and at home.  From time to time I add some sites
to the bookmarks list at home and others to the list at work.  How can I
transfer the added sites, and only the added sites, from one list to the
other?

I have tried the Import command, but that merely adds all the bookmarks in
one list to the other,  leaving me with duplicate copies of all the
bookmarks that were in both lists to start with.  Going through and weeding
out duplicates is tedious and time-consuming.

Is there some way of (a) displaying both lists at the same time, and (b)
selecting sites from one and copying them to the other?