How can I keep custom settings from being reset?
I have placed Decentraleyes' XPI package at
/usr/share/firefox-esr/distribution/extensions/jid1-BoFifL9Vbdl2zQ@jetpack.xpi for automatic installation in new profiles (Debian 9 Stretch), along with other addons.
/etc/firefox-esr/firefox-esr.js  I have set
pref("extensions.jid1-BoFifL9Vbdl2zQ@jetpack.showReleaseNotes", false); to prevent Decentraleyes release notes from showing up on Firefox startup each time a new profile is created.
However when I run a Firefox profile for the first time, the release notes are displayed.
about:config I see that
extensions.jid1-BoFifL9Vbdl2zQ@jetpack.showReleaseNotes has been reset to
~/.mozilla/firefox/xxxxxx.default/browser-extension-data/jid1-BoFifL9Vbdl2zQ@jetpack/storage.js there is also a setting reflecting the
about:config value (
Somehow Decentraleyes seems to reset that setting to
true when a new profile is first launched. How can I prevent this?