Location of LocalDB File – Backup Cardbook for Thunderbird › Forums › Main Forum › Location of LocalDB File – Backup This topic contains 0 replies, has 1 voice, and was last updated by omoknen 3 weeks ago. Author Posts 2nd May 2018 at 02:48 #1931 omoknenParticipant I just started using this add-on (LocalDB onlyh), and I want to make sure I backup the files, but to be honest I don’t know where the files are kept. I looked in the Thunderbird Profile folder and I found a cardbook directory but it has very little in it. I do use a non-standard directory for my profile. Thank you. Author Posts You must be logged in to reply to this topic.