prefs.js
[Profile]/extensions/{a62ef8ec-5fdc-40c2-873c-223b8a6925cc}/defaults/preferences/preferences.js
[Profile]/extensions/gnomeintegration@davidmartinez.net/defaults/preferences/gnomeintegration.js
/usr/lib/mozilla/extensions/{3550f703-e582-4d05-9a08-453d09bdfdc6}/{847b3a00-7ab1-11d4-8f02-006008948af5}/defaults/preferences/enigmail.js
/usr/lib/mozilla/extensions/{3550f703-e582-4d05-9a08-453d09bdfdc6}/{847b3a00-7ab1-11d4-8f02-006008948af5}/defaults/preferences/000system.js
[Profile]/extensions/{e2fda1a4-762b-4020-b5ad-a41df1933103}/defaults/preferences/lightning.js