User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0 Build ID: 20150525141253 Steps to reproduce: I started and restarted Thunderbird and went to "address book". Actual results: When I selected address book, there were many more entries than I actually entered myself. It looks like it's adding them automatically from email's I'm receiving. Also I cannot enter new ones manually Expected results: I should have been able to select New from the menu bar and entered a new contact. Cannot do that now.
(In reply to Pat Dunipace from comment #0) > Actual results: > > When I selected address book, there were many more entries than I actually > entered myself. It looks like it's adding them automatically from email's > I'm receiving. Yes, addresses that you send messages out are collected in the Collected Addresses addressbook. You can then use that addressbook e.g. in spam filtering to say those people are not spam if they send to you. If you do not like the feature, you can turn it off in Options->Composition->Addressing. > Also I cannot enter new ones manually When you are in the addressbook window, notice in the left panel where the focus is. If it is on "All address books" you can't add new contacts. Try selecting "Personal address book" (or other where you want to create the contact). Then "New contact" button should enable.