Rated 5 out of 5 stars

Από τον/την icekarim στις Αύγ. 25, 2015 · μόνιμος σύνδεσμος

Works fine on last thunderbird version !
Sorry I didn't check correctly.
MUST select the address book first
Has a progress status bar
If more then 2 duplicates (4 or five of the same) must launch again...
The only duplicate addresse plugin on thunderbird.