Gosh, after three days cannot anyone tell me how to (COMPLETELY) delete my imported address book so I can start fresh? Each time I think I have deleted my imported address book, I try to import again and the book contains one additional copy of each address. I am up to six copies at present. It seem apparent to me that each time I am not successfully deleting the imported address book

Despite no one coming to my assistance, I stumbled across a solution on my own. In my TB profile there was a file named impab.mab I am going to make a wild guess that that means IMPorted Address Book.Mozilla Address Book. Whether or not that is correct, I deleted it, and then successfully reimported my addresses. Then I deleted abook.mab and renamed my new impab.mab as abook.mab. Voila! All addresses appear in my TB personal address book. Perhaps this will help some other poor soul looking for an answer.