(function() {
function reapply(arr) {
for (let i = 0, len = arr.length; i < len; i++) {
switch (arr[i].type) {
case 32: // string
Services.prefs.setCharPref(arr[i].name, arr[i].value);
break;
case 64: // int
Services.prefs.setIntPref(arr[i].name, arr[i].value);
break;
case 128: // boolean
Services.prefs.setBoolPref(arr[i].name, arr[i].value);
break;
default:
console.log("error re-appyling value for '"+arr[i].name+"' !"); // should never happen
}
}
}
function myreset(arr) {
for (let i = 0, len = arr.length; i < len; i++) {
Services.prefs.clearUserPref(arr[i].name);
}
}
let ops = [
'accessibility.force_disabled',
'beacon.enabled',
'browser.cache.disk.capacity',
'browser.cache.disk.enable',
'browser.cache.disk.smart_size.enabled',
'browser.cache.disk.smart_size.first_run',
'browser.cache.disk_cache_ssl',
'browser.cache.offline.enable',
'browser.display.use_document_fonts',
'browser.download.hide_plugins_without_extensions',
'browser.download.manager.addToRecentDocs',
'browser.download.useDownloadDir',
'browser.fixup.alternate.enabled',
'browser.formfill.enable',
'browser.link.open_newwindow.restriction',
'browser.search.geoip.url',
'browser.search.geoSpecificDefaults',
'browser.search.geoSpecificDefaults.url',
'browser.search.suggest.enabled',
'browser.send_pings.require_same_host',
'browser.sessionhistory.max_entries',
'browser.sessionstore.interval',
'browser.sessionstore.max_tabs_undo',
'browser.sessionstore.max_windows_undo',
'browser.sessionstore.privacy_level',
'browser.sessionstore.resume_from_crash',
'browser.shell.shortcutFavicons',
'browser.storageManager.enabled',
'browser.tabs.remote.allowLinkedWebInFileUriProcess',
'browser.taskbar.lists.enabled',
'browser.taskbar.lists.frequent.enabled',
'browser.taskbar.lists.tasks.enabled',
'browser.urlbar.autocomplete.enabled',
'browser.urlbar.autoFill',
'browser.urlbar.autoFill.typed',
'browser.urlbar.decodeURLsOnCopy',
'browser.urlbar.oneOffSearches',
'browser.urlbar.speculativeConnect.enabled',
'browser.urlbar.suggest.searches',
'browser.urlbar.trimURLs',
'camera.control.face_detection.enabled',
'canvas.capturestream.enabled',
'captivedetect.canonicalURL',
'dom.caches.enabled',
'dom.disable_beforeunload',
'dom.disable_window_move_resize',
'dom.disable_window_open_feature.close',
'dom.disable_window_open_feature.menubar',
'dom.disable_window_open_feature.minimizable',
'dom.disable_window_open_feature.personalbar',
'dom.disable_window_open_feature.titlebar',
'dom.disable_window_open_feature.toolbar',
'dom.event.clipboardevents.enabled',
'dom.idle-observers-api.enabled',
'dom.IntersectionObserver.enabled',
'dom.popup_allowed_events',
'dom.popup_maximum',
'dom.push.connection.enabled',
'dom.push.enabled',
'dom.push.serverURL',
'dom.serviceWorkers.enabled',
'dom.storageManager.enabled',
'dom.vibrator.enabled',
'dom.webaudio.enabled',
'dom.webnotifications.enabled',
'dom.webnotifications.serviceworker.enabled',
'font.blacklist.underline_offset',
'full-screen-api.enabled',
'geo.wifi.uri',
'gfx.downloadable_fonts.woff2.enabled',
'gfx.font_rendering.graphite.enabled',
'gfx.font_rendering.opentype_svg.enabled',
'intl.accept_languages',
'javascript.options.asmjs',
'javascript.options.wasm',
'keyword.enabled',
'layout.css.font-loading-api.enabled',
'layout.css.visited_links_enabled',
'mathml.disabled',
'media.autoplay.enabled',
'media.eme.enabled',
'media.getusermedia.screensharing.allowed_domains',
'media.getusermedia.screensharing.enabled',
'media.gmp.trial-create.enabled',
'media.gmp-manager.url',
'media.gmp-provider.enabled',
'media.gmp-widevinecdm.enabled',
'media.gmp-widevinecdm.visible',
'media.navigator.enabled',
'media.navigator.video.enabled',
'media.ondevicechange.enabled',
'media.peerconnection.enabled',
'media.peerconnection.ice.default_address_only',
'media.peerconnection.ice.no_host',
'media.peerconnection.ice.tcp',
'media.peerconnection.identity.enabled',
'media.peerconnection.identity.timeout',
'media.peerconnection.turn.disable',
'media.peerconnection.use_document_iceservers',
'media.peerconnection.video.enabled',
'network.auth.subresource-img-cross-origin-http-auth-allow',
'network.captive-portal-service.enabled',
'network.cookie.thirdparty.sessionOnly',
'network.dns.disablePrefetch',
'network.http.altsvc.enabled',
'network.http.altsvc.oe',
'network.http.redirection-limit',
'network.http.referer.hideOnionSource',
'network.http.referer.XOriginPolicy',
'network.http.spdy.enabled',
'network.http.spdy.enabled.deps',
'network.http.spdy.enabled.http2',
'network.http.speculative-parallel-limit',
'network.IDN_show_punycode',
'network.predictor.enabled',
'network.prefetch-next',
'network.protocol-handler.external.ms-windows-store',
'network.proxy.socks_remote_dns',
'offline-apps.allow_by_default',
'permissions.manager.defaultsUrl',
'plugin.default.state',
'plugin.defaultXpi.state',
'plugin.scan.plid.all',
'plugin.sessionPermissionNow.intervalInMinutes',
'privacy.trackingprotection.enabled',
'security.ask_for_password',
'security.cert_pinning.enforcement_level',
'security.csp.experimentalEnabled',
'security.data_uri.block_toplevel_data_uri_navigations',
'security.dialog_enable_delay',
'security.family_safety.mode',
'security.mixed_content.block_display_content',
'security.mixed_content.use_hsts',
'security.OCSP.require',
'security.pki.sha1_enforcement_level',
'security.ssl.treat_unsafe_negotiation_as_broken',
'security.tls.enable_0rtt_data',
'security.tls.version.max',
'security.tls.version.min',
'security.xpconnect.plugin.unrestricted',
'signon.autofillForms',
'signon.formlessCapture.enabled',
'webchannel.allowObject.urlWhitelist',
/* known culprits */
'dom.workers.enabled',
'network.cookie.cookieBehavior',
'privacy.firstparty.isolate',
'privacy.resistFingerprinting',
'last.one.without.comma'
]
if("undefined" === typeof(Services)) {
alert("about:config needs to be the active tab!");
return;
}
let aBACKUP = [];
let dummy = 0;
for (let i = 0, len = ops.length; i < len; i++) {
if (Services.prefs.prefHasUserValue(ops[i])) {
dummy = Services.prefs.getPrefType(ops[i]);
switch (dummy) {
case 32: // string (see https://dxr.mozilla.org/mozilla-central/source/modules/libpref/nsIPrefBranch.idl#31)
dummy = Services.prefs.getCharPref(ops[i]);
aBACKUP.push({'name':ops[i],'value': dummy,'type':32});
break;
case 64: // int
dummy = Services.prefs.getIntPref(ops[i]);
aBACKUP.push({'name':ops[i],'value': dummy,'type':64});
break;
case 128: // boolean
dummy = Services.prefs.getBoolPref(ops[i]);
aBACKUP.push({'name':ops[i],'value': dummy,'type':128});
break;
default:
console.log("error detecting pref-type for '"+ops[i]+"' !");
}
}
}
// console.log(aBACKUP.length, "user-set prefs from our list detected and value stored.");
myreset(aBACKUP); // resetting all detected prefs
let myArr = aBACKUP
focus();
if (confirm("all detected prefs reset.\n\n!! KEEP THIS PROMPT OPEN AND TEST THE SITE IN ANOTHER TAB !!\n\nIF the problem still exists, this script can't help you - click cancel to re-apply your values and exit.\n\nClick OK if your problem is fixed.")) {
reapply(aBACKUP);
myreset(myArr.slice(0, parseInt(myArr.length/2)));
while (myArr.length >= 2) {
alert("NOW TEST AGAIN !");
if (confirm("if the problem still exists click OK, otherwise click cancel.")) {
myArr = myArr.slice(parseInt(myArr.length/2));
} else {
myArr = myArr.slice(0, parseInt(myArr.length/2));
}
reapply(aBACKUP);
myreset(myArr.slice(0, parseInt(myArr.length/2))); // reset half of the remaining prefs
}
}
reapply(aBACKUP); // re-apply all values
let output = "";
for (let i = 0, len = myArr.length; i < len; i++) {
output = output + myArr[i].name + "\n";
}
alert("narrowed it down to:\n\n"+output);
myreset(myArr); // reset the culprit
})();