privacy.clearOnShutdown.siteSettings -> false
privacy.clearOnShutdown.siteSettings -> false

Closes #45

nodiscc/user.js,valdeza/personal-privacy-security-firefox-user.js,nodiscc/user.js,pyllyukko/user.js,pyllyukko/user.js,Toromtomtom/user.js,Toromtomtom/user.js