Hello, I use Thunderbird with the extensions "TbSync" and "Provider for Exchange ActiveSync" in order to communicate with our email server at work. When composing a new email, I used to be able to start typing a person's name or email address and hit Tab and their email address would autocomplete (if multiple addresses were found for the name, a drop-down list would show). To do so, the autocomplete would look not only in the people I had already sent an email to at some point, but would also go through all the available addresses on our server. I loved this feature! Since one update last year, the feature was suddenly gone - now it only goes through the people, that I have already sent emails to. I've searched for a solution multiple times, but have found nothing. I would be really happy, if someone could help me fix this :) Best regards!