Just to complete the loop, I didn't see this thread before I posted today about the same issue.https://connect.mozilla.org/t5/discussions/frustrated-with-new-calendar-event-search/td-p/65431 Thanks
Not sure when the change was made, but the Thunderbird calendar (formerly Lightning?) event search now works only within a selected window (see image).My issue is that I when I search for events, I usually want to look in previous years, and I don't ...