God be good

user_pref("dom.event.clipboardevents.enabled", true); // Disable clipboard events through Javascript oncopy, oncut, and onpaste

user_pref("dom.allow_cut_copy", true); // Same as above but for legacy applications

user_pref("browser.gesture.swipe.left", ""); // Disable swipe left or touchpad scroll left to go back

user_pref("browser.gesture.swipe.right", ""); // Disable swipe right or touchpad scroll right to go to next page

user_pref("app.update.lastUpdateTime.telemetry_untrustedmodules_ping", 0);

user_pref("browser.contentblocking.category", "strict"); // Set strict content blocking

// Everything else from: https://brainfucksec.github.io/firefox-hardening-guide

user_pref("browser.safebrowsing.malware.enabled", false);

user_pref("browser.safebrowsing.phishing.enabled", false);

user_pref("browser.search.separatePrivateDefault.urlbarResult.enabled", false);

user_pref("browser.search.suggest.enabled", false);

user_pref("browser.tabs.crashReporting.sendReport", false);

user_pref("browser.urlbar.suggest.history", true);

user_pref("datareporting.healthreport.uploadEnabled", false);

user_pref("devtools.cache.disabled", true);

user_pref("identity.fxaccounts.enabled", false);

user_pref("browser.startup.page", 1);

user_pref("browser.startup.homepage", "about:home");

user_pref("datareporting.policy.dataSubmissionEnabled", false);

user_pref("datareporting.healthreport.uploadEnabled", false);

user_pref("toolkit.telemetry.enabled", false); // [Default: false]

user_pref("toolkit.telemetry.unified", false);

user_pref("toolkit.telemetry.server", "data:,");

user_pref("toolkit.telemetry.archive.enabled", false);

user_pref("toolkit.telemetry.newProfilePing.enabled", false);

user_pref("toolkit.telemetry.shutdownPingSender.enabled", false);

user_pref("toolkit.telemetry.updatePing.enabled", false);

user_pref("toolkit.telemetry.bhrPing.enabled", false);

user_pref("toolkit.telemetry.firstShutdownPing.enabled", false);

user_pref("toolkit.telemetry.coverage.opt-out", true); // [HIDDEN PREF]

user_pref("toolkit.coverage.opt-out", true); // [HIDDEN PREF]

user_pref("toolkit.coverage.endpoint.base", "");

user_pref("browser.ping-centre.telemetry", false);

user_pref("beacon.enabled", false);

user_pref("browser.formfill.enable", false);

user_pref("extensions.pocket.enabled", false);