Thunderbird Address Book - Merging Duplicates

Question

I have an address book in Thunderbird that has a ton of duplicates. I reied using the add on at https://addons.mozilla.org/en-US/thunderbird/addon/53145/ but that ended up losing data during the migration.

I can export the address book to a .MAB file. Does anyone know of an app I can use to edit the MAB? Be great if I could get it into excel...

Answer 1

Well, I exported to CSV and used Excel to manually merge the duplicates.

That wasn't as time consuming as I thought, but it was manual.

And a couple of caveats:

• Screenname was not exported
• Anniversary Date and Spouse were not exported
• During import, Anniversary date, spouse, and categories were not imported.