i"m not sure how this thread is even relevant. Bookmarks-or favorites as they are known in AOL parlance--can be imported into Thunderbird (mozilla) as part of thunderbird simply check out mozilla.org for links to the instructions which are easy.
The difficulty with AOL mail is importing the old email (email no longer accessible via the server) into Thunderbird. The "fix" listed above will do NOTHING to aid you in importing AOL mail....just he favorites.
I have yet to find free software that will allow importing of AOL PFC files (including email) into thunderbird. Connected software http://www.connectedsw.com/Overview/57266
has such software--but, it is not free.
If anyone knows of a way to import my 1,000s of AOL emails accumulated over years--please post this here. The current post offers zero help to this end. thank you.