I think it could be useful an "X" icon to clear the search field (as in search messages) in Thunderbook Address Book so that you can go back to all Address Book entries being displayed.Thanks and keep up your great work
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@FranzThanks for the suggestion! It's small but thoughtful ideas like this that will make Thunderbird a better experience. Appreciate it.
While you are waiting for "the team" top think about your suggestion. Try using the ESC key to clear your searches. It works now!
@MattAuSupportthanks for the suggestion!