I use MS exchange webmail and I have a web calendar there where my meetings are booked. Now I'd like to know a way where I can get a popup reminder when a meeting is (or some minutes before) that has focus. Now I only get the popups for meeting if I'm on the webpage for my webmail / calendar.
I would like functionality similar to desktop slack where I get a popup reminder when I get a message regardless of which window I have open.
Is there a way to achieve what I want? I tried a number of plugins including thunderbird 31.8.0 and lightning 3.3.3 with the exchange provider plugin, then nothing is possible and I can't even add a server url.