Hello Oops, you're quite right Seb (and I learnt something from you). It's working w/ Evolution Contacts. I did not realize because I forgot I exported, in the past, my TB address book to Contacts Evolution, and this is why I did not suspect Evolution.
I did a new trial updating Evolution from TB and of course it works. Very sorry to have disturbed you for .... nothing. You can close the bug now!!! -- contact-lookup-applet fails to sync up with Thunderbird https://launchpad.net/bugs/90264 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs