Thunderbird Adressbuch in Roundcube

Convert thunderbird ldif addressbook to roundcube vcard format

http://www.iac.ethz.ch/staff/maeder/mailtool.php

oder offline

http://www.barninger.com/ldif_to_vcard/ (download the perl program)

Synchronizing PDAs and phones

http://kb.mozillazine.org/Synchronizing_PDAs_and_phones

http://kb.mozillazine.org/Sharing_address_books

http://lifehacker.com/239054/geek-to-live–sync-your-address-book-via-imap