user_pref("app.shield.optoutstudies.enabled", false);
user_pref("browser.aboutConfig.showWarning", false);
user_pref("browser.contentblocking.category", "strict");
user_pref("browser.download.useDownloadDir", false);
user_pref("browser.formfill.enable", false);
user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons", false);
user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features", false);
user_pref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts.searchEngines", "");
user_pref("browser.newtabpage.enabled", false);
user_pref("browser.preferences.moreFromMozilla", false);
user_pref("browser.privatebrowsing.vpnpromourl", "");
user_pref("browser.topsites.contile.cachedTiles", "");
user_pref("browser.urlbar.update2.engineAliasRefresh", true);
user_pref("datareporting.healthreport.uploadEnabled", false);
user_pref("datareporting.policy.dataSubmissionEnabled", false);
user_pref("dom.private-attribution.submission.enabled", false);
user_pref("dom.security.https_only_mode", true);
user_pref("extensions.formautofill.addresses.enabled", false);
user_pref("extensions.formautofill.creditCards.enabled", false);
user_pref("extensions.pocket.enabled", false);
user_pref("findbar.highlightAll", true);
user_pref("identity.fxaccounts.enabled", false);
user_pref("media.webspeech.synth.dont_notify_on_error", true);
user_pref("network.proxy.socks_remote_dns", true);
user_pref("privacy.fingerprintingProtection", true);
user_pref("privacy.sanitize.sanitizeOnShutdown", true);
user_pref("signon.rememberSignons", false);
user_pref("startup.homepage_welcome_url", "");
user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true);
user_pref("toolkit.telemetry.archive.enabled", false);
user_pref("toolkit.telemetry.pioneer-new-studies-available", false);

// user preferences
user_pref("browser.startup.homepage", "https://music.youtube.com/playlist?list=PLXd8_JG4e_d34zzFuv-ZtufN3VcbYnFnl");
user_pref("browser.startup.page", 1);
user_pref("browser.tabs.hoverPreview.showThumbnails", false);
user_pref("browser.toolbars.bookmarks.visibility", "always");
user_pref("browser.zoom.siteSpecific", false);
user_pref("media.videocontrols.picture-in-picture.enabled", false);
user_pref("privacy.clearOnShutdown_v2.cache", false);
user_pref("privacy.clearOnShutdown_v2.cookiesAndStorage", false);
user_pref("privacy.clearOnShutdown_v2.historyFormDataAndDownloads", true);