Review for Addressbooks Synchronizer by Brent C
Rated 4 out of 5 stars
A much needed program for maintaining a central addressbook storage location.
This is not a "syncing" application yet.
Note: if you are using IIS Webdav 6.0 with authentication you will need to configure MIME type for the .mab files of else this extension will not properly download the remote addressbooks.
To create your own collections, you must have a Mozilla Add-ons account.