Firefox security hardening via system wide locked preferences
Configurations aggregated from these sources:
- https://vikingvpn.com/cybersecurity-wiki/browser-security/guide-hardening-mozilla-firefox-for-privacy-and-security
- https://web.archive.org/web/20160606093146/https://vox.space/blog/98/mozilla-firefox-security (archived)
- https://www.privacytools.io/#browser
- Clone the repository
- Copy files
local-settings.js->/usr/lib/firefox/defaults/pref/mozilla.cfg->/usr/lib/firefox/
- Re/start Firefox
- Visit
about:config, locked preferences will be shown in italic
If you want a more comprehensive solution, check this repository from @pyllyukko https://github.com/pyllyukko/user.js