To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
CloseReview for Duplicate Contact Manager by Herzmann
Rated 3 out of 5 stars
Rearding to the short description at top, it is not clear, if it only works on Thunderbird 2.*
Should I use Duplicate Contact Manager 2 for TB 3.* ?
To create your own collections, you must have a Mozilla Add-ons account.