this happens to me as well, in my case it is always firefox-esr which
causes apt-listchanges to display the following over and over, years
after the fact:
apt-listchanges: Notizie
------------------------
firefox-esr (60.0esr-1) unstable; urgency=medium
* The use of `lockPref` in preferences under /etc/firefox-esr is
deprecated.
Please use `pref("name", value, locked)` instead. `lockPref` will still
be supported for compatibility purpose until version 67.
-- Mike Hommey <gland...@debian.org> Thu, 10 May 2018 09:36:46 +0900
firefox-esr (45.0esr-1) unstable; urgency=medium
* The iceweasel package was replaced with the firefox-esr package.
-- Mike Hommey <gland...@debian.org> Mon, 7 Mar 2016 07:45:02 +0900
