Rated 2 out of 5 stars
I have found 3 email address extraction add-ons. All 3 add-ons work up to ver. TB52.*, but not in TB60:
"EmailPicky 4" has some limitations and annoyances. Mainly the fact that it will not collect addresses that are already in any existing address book...
But this limitation has been removed in the add-on "EMail Address Crawler 3", so I switched to that! (It seems to be simply another version of the same software.)
Beside this, there is "tb_email_grabber 1.3", but it will only collect 'senders'. So it's not very useful. And it saves the result in a CSV-file, so you have to import it into TB.