Add m-esr52 at 52.6.0

7 files changed, 1654 insertions, 0 deletions

diff --git a/browser/app/profile/channel-prefs.js b/browser/app/profile/channel-prefs.js
new file mode 100644
index 000000000..633c489f3
--- /dev/null
+++ b/browser/app/profile/channel-prefs.js
@@ -0,0 +1,5 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+pref("app.update.channel", "@MOZ_UPDATE_CHANNEL@");
diff --git a/browser/app/profile/extensions/moz.build b/browser/app/profile/extensions/moz.build
new file mode 100644
index 000000000..bb02c9165
--- /dev/null
+++ b/browser/app/profile/extensions/moz.build
@@ -0,0 +1,7 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+DIRS += ['{972ce4c6-7e08-4474-a285-3208198ce6fd}']
diff --git a/browser/app/profile/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}/install.rdf.in b/browser/app/profile/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}/install.rdf.in
new file mode 100644
index 000000000..3e803af5b
--- /dev/null
+++ b/browser/app/profile/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}/install.rdf.in
@@ -0,0 +1,40 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+
+#filter substitution
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>{972ce4c6-7e08-4474-a285-3208198ce6fd}</em:id>
+    <em:version>@FIREFOX_VERSION@</em:version>
+
+    <!-- Target Application this theme can install into, 
+        with minimum and maximum supported versions. --> 
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>@FIREFOX_VERSION@</em:minVersion>
+        <em:maxVersion>@FIREFOX_VERSION@</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Default</em:name>
+    <em:description>The default theme.</em:description>
+
+    <!-- Front End Integration Hooks (used by Theme Manager)-->
+    <em:creator>Mozilla</em:creator>
+    <em:contributor>Mozilla Contributors</em:contributor>
+
+    <!-- Allow lightweight themes to apply to this theme -->
+    <em:skinnable>true</em:skinnable>
+
+    <em:internalName>classic/1.0</em:internalName>
+  </Description>      
+
+</RDF>
diff --git a/browser/app/profile/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}/moz.build b/browser/app/profile/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}/moz.build
new file mode 100644
index 000000000..20a4c1cbe
--- /dev/null
+++ b/browser/app/profile/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}/moz.build
@@ -0,0 +1,11 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+FINAL_TARGET = 'dist/bin/browser/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}'
+
+FINAL_TARGET_PP_FILES += [
+    'install.rdf.in',
+]
diff --git a/browser/app/profile/firefox.js b/browser/app/profile/firefox.js
new file mode 100644
index 000000000..82f8e45a5
--- /dev/null
+++ b/browser/app/profile/firefox.js
@@ -0,0 +1,1571 @@
+# -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+// XXX Toolkit-specific preferences should be moved into toolkit.js
+
+#filter substitution
+
+#
+# SYNTAX HINTS:
+#
+#  - Dashes are delimiters; use underscores instead.
+#  - The first character after a period must be alphabetic.
+#  - Computed values (e.g. 50 * 1024) don't work.
+#
+
+#ifdef XP_UNIX
+#ifndef XP_MACOSX
+#define UNIX_BUT_NOT_MAC
+#endif
+#endif
+
+pref("browser.chromeURL","chrome://browser/content/");
+pref("browser.hiddenWindowChromeURL", "chrome://browser/content/hiddenWindow.xul");
+
+// Enables some extra Extension System Logging (can reduce performance)
+pref("extensions.logging.enabled", false);
+
+// Disables strict compatibility, making addons compatible-by-default.
+pref("extensions.strictCompatibility", false);
+
+// Specifies a minimum maxVersion an addon needs to say it's compatible with
+// for it to be compatible by default.
+pref("extensions.minCompatibleAppVersion", "4.0");
+// Temporary preference to forcibly make themes more safe with Australis even if
+// extensions.checkCompatibility=false has been set.
+pref("extensions.checkCompatibility.temporaryThemeOverride_minAppVersion", "29.0a1");
+
+pref("xpinstall.customConfirmationUI", true);
+
+// Preferences for AMO integration
+pref("extensions.getAddons.cache.enabled", true);
+pref("extensions.getAddons.maxResults", 15);
+pref("extensions.getAddons.get.url", "https://services.addons.mozilla.org/%LOCALE%/firefox/api/%API_VERSION%/search/guid:%IDS%?src=firefox&appOS=%OS%&appVersion=%VERSION%");
+pref("extensions.getAddons.getWithPerformance.url", "https://services.addons.mozilla.org/%LOCALE%/firefox/api/%API_VERSION%/search/guid:%IDS%?src=firefox&appOS=%OS%&appVersion=%VERSION%&tMain=%TIME_MAIN%&tFirstPaint=%TIME_FIRST_PAINT%&tSessionRestored=%TIME_SESSION_RESTORED%");
+pref("extensions.getAddons.search.browseURL", "https://addons.mozilla.org/%LOCALE%/firefox/search?q=%TERMS%&platform=%OS%&appver=%VERSION%");
+pref("extensions.getAddons.search.url", "https://services.addons.mozilla.org/%LOCALE%/firefox/api/%API_VERSION%/search/%TERMS%/all/%MAX_RESULTS%/%OS%/%VERSION%/%COMPATIBILITY_MODE%?src=firefox");
+pref("extensions.webservice.discoverURL", "https://discovery.addons.mozilla.org/%LOCALE%/firefox/discovery/pane/%VERSION%/%OS%/%COMPATIBILITY_MODE%");
+pref("extensions.getAddons.recommended.url", "https://services.addons.mozilla.org/%LOCALE%/%APP%/api/%API_VERSION%/list/recommended/all/%MAX_RESULTS%/%OS%/%VERSION%?src=firefox");
+pref("extensions.getAddons.link.url", "https://addons.mozilla.org/%LOCALE%/firefox/");
+
+pref("extensions.update.autoUpdateDefault", true);
+
+pref("extensions.hotfix.id", "firefox-hotfix@mozilla.org");
+pref("extensions.hotfix.cert.checkAttributes", true);
+pref("extensions.hotfix.certs.1.sha1Fingerprint", "91:53:98:0C:C1:86:DF:47:8F:35:22:9E:11:C9:A7:31:04:49:A1:AA");
+pref("extensions.hotfix.certs.2.sha1Fingerprint", "39:E7:2B:7A:5B:CF:37:78:F9:5D:4A:E0:53:2D:2F:3D:68:53:C5:60");
+
+// Check AUS for system add-on updates.
+pref("extensions.systemAddon.update.url", "https://aus5.mozilla.org/update/3/SystemAddons/%VERSION%/%BUILD_ID%/%BUILD_TARGET%/%LOCALE%/%CHANNEL%/%OS_VERSION%/%DISTRIBUTION%/%DISTRIBUTION_VERSION%/update.xml");
+
+// Disable add-ons that are not installed by the user in all scopes by default.
+// See the SCOPE constants in AddonManager.jsm for values to use here.
+pref("extensions.autoDisableScopes", 15);
+
+// Add-on content security policies.
+pref("extensions.webextensions.base-content-security-policy", "script-src 'self' https://* moz-extension: blob: filesystem: 'unsafe-eval' 'unsafe-inline'; object-src 'self' https://* moz-extension: blob: filesystem:;");
+pref("extensions.webextensions.default-content-security-policy", "script-src 'self'; object-src 'self';");
+
+// Require signed add-ons by default
+pref("xpinstall.signatures.required", true);
+pref("xpinstall.signatures.devInfoURL", "https://wiki.mozilla.org/Addons/Extension_Signing");
+
+// Dictionary download preference
+pref("browser.dictionaries.download.url", "https://addons.mozilla.org/%LOCALE%/firefox/dictionaries/");
+
+// At startup, should we check to see if the installation
+// date is older than some threshold
+pref("app.update.checkInstallTime", true);
+
+// The number of days a binary is permitted to be old without checking is defined in
+// firefox-branding.js (app.update.checkInstallTime.days)
+
+// The minimum delay in seconds for the timer to fire between the notification
+// of each consumer of the timer manager.
+// minimum=30 seconds, default=120 seconds, and maximum=300 seconds
+pref("app.update.timerMinimumDelay", 120);
+
+// The minimum delay in milliseconds for the first firing after startup of the timer
+// to notify consumers of the timer manager.
+// minimum=10 seconds, default=30 seconds, and maximum=120 seconds
+pref("app.update.timerFirstInterval", 30000);
+
+// App-specific update preferences
+
+// The interval to check for updates (app.update.interval) is defined in
+// firefox-branding.js
+
+// Alternative windowtype for an application update user interface window. When
+// a window with this windowtype is open the application update service won't
+// open the normal application update user interface window.
+pref("app.update.altwindowtype", "Browser:About");
+
+// Enables some extra Application Update Logging (can reduce performance)
+pref("app.update.log", false);
+
+// The number of general background check failures to allow before notifying the
+// user of the failure. User initiated update checks always notify the user of
+// the failure.
+pref("app.update.backgroundMaxErrors", 10);
+
+// Whether or not app updates are enabled
+pref("app.update.enabled", true);
+
+// If set to true, the Update Service will automatically download updates when
+// app updates are enabled per the app.update.enabled preference and if the user
+// can apply updates.
+pref("app.update.auto", true);
+
+// If set to true, the Update Service will present no UI for any event.
+pref("app.update.silent", false);
+
+// If set to true, the hamburger button will show badges for update events.
+#ifndef RELEASE_OR_BETA
+pref("app.update.badge", true);
+#else
+pref("app.update.badge", false);
+#endif
+// app.update.badgeWaitTime is in branding section
+
+// If set to true, the Update Service will apply updates in the background
+// when it finishes downloading them.
+pref("app.update.staging.enabled", true);
+
+// Update service URL:
+pref("app.update.url", "https://aus5.mozilla.org/update/6/%PRODUCT%/%VERSION%/%BUILD_ID%/%BUILD_TARGET%/%LOCALE%/%CHANNEL%/%OS_VERSION%/%SYSTEM_CAPABILITIES%/%DISTRIBUTION%/%DISTRIBUTION_VERSION%/update.xml");
+// app.update.url.manual is in branding section
+// app.update.url.details is in branding section
+
+// app.update.interval is in branding section
+// app.update.promptWaitTime is in branding section
+
+// Show the Update Checking/Ready UI when the user was idle for x seconds
+pref("app.update.idletime", 60);
+
+// Whether or not to attempt using the service for updates.
+#ifdef MOZ_MAINTENANCE_SERVICE
+pref("app.update.service.enabled", true);
+#endif
+
+// Symmetric (can be overridden by individual extensions) update preferences.
+// e.g.
+//  extensions.{GUID}.update.enabled
+//  extensions.{GUID}.update.url
+//  .. etc ..
+//
+pref("extensions.update.enabled", true);
+pref("extensions.update.url", "https://versioncheck.addons.mozilla.org/update/VersionCheck.php?reqVersion=%REQ_VERSION%&id=%ITEM_ID%&version=%ITEM_VERSION%&maxAppVersion=%ITEM_MAXAPPVERSION%&status=%ITEM_STATUS%&appID=%APP_ID%&appVersion=%APP_VERSION%&appOS=%APP_OS%&appABI=%APP_ABI%&locale=%APP_LOCALE%&currentAppVersion=%CURRENT_APP_VERSION%&updateType=%UPDATE_TYPE%&compatMode=%COMPATIBILITY_MODE%");
+pref("extensions.update.background.url", "https://versioncheck-bg.addons.mozilla.org/update/VersionCheck.php?reqVersion=%REQ_VERSION%&id=%ITEM_ID%&version=%ITEM_VERSION%&maxAppVersion=%ITEM_MAXAPPVERSION%&status=%ITEM_STATUS%&appID=%APP_ID%&appVersion=%APP_VERSION%&appOS=%APP_OS%&appABI=%APP_ABI%&locale=%APP_LOCALE%&currentAppVersion=%CURRENT_APP_VERSION%&updateType=%UPDATE_TYPE%&compatMode=%COMPATIBILITY_MODE%");
+pref("extensions.update.interval", 86400);  // Check for updates to Extensions and
+                                            // Themes every day
+// Non-symmetric (not shared by extensions) extension-specific [update] preferences
+pref("extensions.dss.enabled", false);          // Dynamic Skin Switching
+pref("extensions.dss.switchPending", false);    // Non-dynamic switch pending after next
+                                                // restart.
+
+pref("extensions.{972ce4c6-7e08-4474-a285-3208198ce6fd}.name", "chrome://browser/locale/browser.properties");
+pref("extensions.{972ce4c6-7e08-4474-a285-3208198ce6fd}.description", "chrome://browser/locale/browser.properties");
+
+pref("lightweightThemes.update.enabled", true);
+pref("lightweightThemes.getMoreURL", "https://addons.mozilla.org/%LOCALE%/firefox/themes");
+pref("lightweightThemes.recommendedThemes", "[{\"id\":\"recommended-1\",\"homepageURL\":\"https://addons.mozilla.org/firefox/addon/a-web-browser-renaissance/\",\"headerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/1.header.jpg\",\"footerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/1.footer.jpg\",\"textcolor\":\"#000000\",\"accentcolor\":\"#f2d9b1\",\"iconURL\":\"resource:///chrome/browser/content/browser/defaultthemes/1.icon.jpg\",\"previewURL\":\"resource:///chrome/browser/content/browser/defaultthemes/1.preview.jpg\",\"author\":\"Sean.Martell\",\"version\":\"0\"},{\"id\":\"recommended-2\",\"homepageURL\":\"https://addons.mozilla.org/firefox/addon/space-fantasy/\",\"headerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/2.header.jpg\",\"footerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/2.footer.jpg\",\"textcolor\":\"#ffffff\",\"accentcolor\":\"#d9d9d9\",\"iconURL\":\"resource:///chrome/browser/content/browser/defaultthemes/2.icon.jpg\",\"previewURL\":\"resource:///chrome/browser/content/browser/defaultthemes/2.preview.jpg\",\"author\":\"fx5800p\",\"version\":\"1.0\"},{\"id\":\"recommended-3\",\"homepageURL\":\"https://addons.mozilla.org/firefox/addon/linen-light/\",\"headerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/3.header.png\",\"footerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/3.footer.png\",\"accentcolor\":\"#ada8a8\",\"iconURL\":\"resource:///chrome/browser/content/browser/defaultthemes/3.icon.png\",\"previewURL\":\"resource:///chrome/browser/content/browser/defaultthemes/3.preview.png\",\"author\":\"DVemer\",\"version\":\"1.0\"},{\"id\":\"recommended-4\",\"homepageURL\":\"https://addons.mozilla.org/firefox/addon/pastel-gradient/\",\"headerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/4.header.png\",\"footerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/4.footer.png\",\"textcolor\":\"#000000\",\"accentcolor\":\"#000000\",\"iconURL\":\"resource:///chrome/browser/content/browser/defaultthemes/4.icon.png\",\"previewURL\":\"resource:///chrome/browser/content/browser/defaultthemes/4.preview.png\",\"author\":\"darrinhenein\",\"version\":\"1.0\"},{\"id\":\"recommended-5\",\"homepageURL\":\"https://addons.mozilla.org/firefox/addon/carbon-light/\",\"headerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/5.header.png\",\"footerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/5.footer.png\",\"textcolor\":\"#3b3b3b\",\"accentcolor\":\"#2e2e2e\",\"iconURL\":\"resource:///chrome/browser/content/browser/defaultthemes/5.icon.jpg\",\"previewURL\":\"resource:///chrome/browser/content/browser/defaultthemes/5.preview.jpg\",\"author\":\"Jaxivo\",\"version\":\"1.0\"}]");
+
+#if defined(MOZ_ADOBE_EME) || defined(MOZ_WIDEVINE_EME)
+pref("browser.eme.ui.enabled", true);
+#else
+pref("browser.eme.ui.enabled", false);
+#endif
+
+// UI tour experience.
+pref("browser.uitour.enabled", true);
+pref("browser.uitour.loglevel", "Error");
+pref("browser.uitour.requireSecure", true);
+pref("browser.uitour.themeOrigin", "https://addons.mozilla.org/%LOCALE%/firefox/themes/");
+pref("browser.uitour.url", "https://www.mozilla.org/%LOCALE%/firefox/%VERSION%/tour/");
+// This is used as a regexp match against the page's URL.
+pref("browser.uitour.readerViewTrigger", "^https:\\/\\/www\\.mozilla\\.org\\/[^\\/]+\\/firefox\\/reading\\/start");
+// How long to show a Hearbeat survey (two hours, in seconds)
+pref("browser.uitour.surveyDuration", 7200);
+
+pref("browser.customizemode.tip0.shown", false);
+pref("browser.customizemode.tip0.learnMoreUrl", "https://support.mozilla.org/1/firefox/%VERSION%/%OS%/%LOCALE%/customize");
+
+pref("keyword.enabled", true);
+pref("browser.fixup.domainwhitelist.localhost", true);
+
+pref("general.useragent.locale", "@AB_CD@");
+pref("general.skins.selectedSkin", "classic/1.0");
+
+pref("general.smoothScroll", true);
+#ifdef UNIX_BUT_NOT_MAC
+pref("general.autoScroll", false);
+#else
+pref("general.autoScroll", true);
+#endif
+
+// At startup, check if we're the default browser and prompt user if not.
+pref("browser.shell.checkDefaultBrowser", true);
+pref("browser.shell.shortcutFavicons",true);
+pref("browser.shell.mostRecentDateSetAsDefault", "");
+#ifdef RELEASE_OR_BETA
+pref("browser.shell.skipDefaultBrowserCheckOnFirstRun", false);
+#else
+pref("browser.shell.skipDefaultBrowserCheckOnFirstRun", true);
+#endif
+pref("browser.shell.skipDefaultBrowserCheck", true);
+pref("browser.shell.defaultBrowserCheckCount", 0);
+pref("browser.defaultbrowser.notificationbar", false);
+
+// 0 = blank, 1 = home (browser.startup.homepage), 2 = last visited page, 3 = resume previous browser session
+// The behavior of option 3 is detailed at: http://wiki.mozilla.org/Session_Restore
+pref("browser.startup.page",                1);
+pref("browser.startup.homepage",            "chrome://branding/locale/browserconfig.properties");
+// Whether we should skip the homepage when opening the first-run page
+pref("browser.startup.firstrunSkipsHomepage", false);
+
+pref("browser.slowStartup.notificationDisabled", false);
+pref("browser.slowStartup.timeThreshold", 40000);
+pref("browser.slowStartup.maxSamples", 5);
+
+// This url, if changed, MUST continue to point to an https url. Pulling arbitrary content to inject into
+// this page over http opens us up to a man-in-the-middle attack that we'd rather not face. If you are a downstream
+// repackager of this code using an alternate snippet url, please keep your users safe
+pref("browser.aboutHomeSnippets.updateUrl", "https://snippets.cdn.mozilla.net/%STARTPAGE_VERSION%/%NAME%/%VERSION%/%APPBUILDID%/%BUILD_TARGET%/%LOCALE%/%CHANNEL%/%OS_VERSION%/%DISTRIBUTION%/%DISTRIBUTION_VERSION%/");
+
+pref("browser.enable_automatic_image_resizing", true);
+pref("browser.casting.enabled", false);
+pref("browser.chrome.site_icons", true);
+pref("browser.chrome.favicons", true);
+// browser.warnOnQuit == false will override all other possible prompts when quitting or restarting
+pref("browser.warnOnQuit", true);
+// browser.showQuitWarning specifically controls the quit warning dialog. We
+// might still show the window closing dialog with showQuitWarning == false.
+pref("browser.showQuitWarning", false);
+pref("browser.fullscreen.autohide", true);
+pref("browser.fullscreen.animate", true);
+pref("browser.overlink-delay", 80);
+
+#ifdef UNIX_BUT_NOT_MAC
+pref("browser.urlbar.clickSelectsAll", false);
+#else
+pref("browser.urlbar.clickSelectsAll", true);
+#endif
+#ifdef UNIX_BUT_NOT_MAC
+pref("browser.urlbar.doubleClickSelectsAll", true);
+#else
+pref("browser.urlbar.doubleClickSelectsAll", false);
+#endif
+
+// Control autoFill behavior
+pref("browser.urlbar.autoFill", true);
+pref("browser.urlbar.autoFill.typed", true);
+
+// 0: Match anywhere (e.g., middle of words)
+// 1: Match on word boundaries and then try matching anywhere
+// 2: Match only on word boundaries (e.g., after / or .)
+// 3: Match at the beginning of the url or title
+pref("browser.urlbar.matchBehavior", 1);
+pref("browser.urlbar.filter.javascript", true);
+
+// the maximum number of results to show in autocomplete when doing richResults
+pref("browser.urlbar.maxRichResults", 10);
+// The amount of time (ms) to wait after the user has stopped typing
+// before starting to perform autocomplete.  50 is the default set in
+// autocomplete.xml.
+pref("browser.urlbar.delay", 50);
+
+// The special characters below can be typed into the urlbar to either restrict
+// the search to visited history, bookmarked, tagged pages; or force a match on
+// just the title text or url.
+pref("browser.urlbar.restrict.history", "^");
+pref("browser.urlbar.restrict.bookmark", "*");
+pref("browser.urlbar.restrict.tag", "+");
+pref("browser.urlbar.restrict.openpage", "%");
+pref("browser.urlbar.restrict.typed", "~");
+pref("browser.urlbar.restrict.searches", "$");
+pref("browser.urlbar.match.title", "#");
+pref("browser.urlbar.match.url", "@");
+
+// The default behavior for the urlbar can be configured to use any combination
+// of the match filters with each additional filter adding more results (union).
+pref("browser.urlbar.suggest.history",              true);
+pref("browser.urlbar.suggest.bookmark",             true);
+pref("browser.urlbar.suggest.openpage",             true);
+pref("browser.urlbar.suggest.searches",             false);
+pref("browser.urlbar.userMadeSearchSuggestionsChoice", false);
+// 4 here means the suggestion notification will be automatically
+// hidden the 4th day, so it will actually be shown on 3 different days.
+pref("browser.urlbar.daysBeforeHidingSuggestionsPrompt", 4);
+pref("browser.urlbar.lastSuggestionsPromptDate", 20160601);
+
+// Limit the number of characters sent to the current search engine to fetch
+// suggestions.
+pref("browser.urlbar.maxCharsForSearchSuggestions", 20);
+
+// Restrictions to current suggestions can also be applied (intersection).
+// Typed suggestion works only if history is set to true.
+pref("browser.urlbar.suggest.history.onlyTyped",    false);
+
+pref("browser.urlbar.formatting.enabled", true);
+pref("browser.urlbar.trimURLs", true);
+
+#if defined(NIGHTLY_BUILD)
+pref("browser.urlbar.oneOffSearches", true);
+#else
+pref("browser.urlbar.oneOffSearches", false);
+#endif
+
+pref("browser.altClickSave", false);
+
+// Enable logging downloads operations to the Console.
+pref("browser.download.loglevel", "Error");
+
+// Number of milliseconds to wait for the http headers (and thus
+// the Content-Disposition filename) before giving up and falling back to
+// picking a filename without that info in hand so that the user sees some
+// feedback from their action.
+pref("browser.download.saveLinkAsFilenameTimeout", 4000);
+
+pref("browser.download.useDownloadDir", true);
+pref("browser.download.folderList", 1);
+pref("browser.download.manager.addToRecentDocs", true);
+pref("browser.download.manager.resumeOnWakeDelay", 10000);
+
+#ifdef RELEASE_OR_BETA
+pref("browser.download.showPanelDropmarker", false);
+#else
+pref("browser.download.showPanelDropmarker", true);
+#endif
+
+// This allows disabling the animated notifications shown by
+// the Downloads Indicator when a download starts or completes.
+pref("browser.download.animateNotifications", true);
+
+// This records whether or not the panel has been shown at least once.
+pref("browser.download.panel.shown", false);
+
+#ifndef XP_MACOSX
+pref("browser.helperApps.deleteTempFileOnExit", true);
+#endif
+
+// search engines URL
+pref("browser.search.searchEnginesURL",      "https://addons.mozilla.org/%LOCALE%/firefox/search-engines/");
+
+// pointer to the default engine name
+pref("browser.search.defaultenginename",      "chrome://browser-region/locale/region.properties");
+
+// Ordering of Search Engines in the Engine list.
+pref("browser.search.order.1",                "chrome://browser-region/locale/region.properties");
+pref("browser.search.order.2",                "chrome://browser-region/locale/region.properties");
+pref("browser.search.order.3",                "chrome://browser-region/locale/region.properties");
+
+// Market-specific search defaults
+// This is disabled globally, and then enabled for individual locales
+// in firefox-l10n.js (eg. it's enabled for en-US).
+pref("browser.search.geoSpecificDefaults", false);
+pref("browser.search.geoSpecificDefaults.url", "https://search.services.mozilla.com/1/%APP%/%VERSION%/%CHANNEL%/%LOCALE%/%REGION%/%DISTRIBUTION%/%DISTRIBUTION_VERSION%");
+
+// US specific default (used as a fallback if the geoSpecificDefaults request fails).
+pref("browser.search.defaultenginename.US",      "data:text/plain,browser.search.defaultenginename.US=Google");
+pref("browser.search.order.US.1",                "data:text/plain,browser.search.order.US.1=Google");
+pref("browser.search.order.US.2",                "data:text/plain,browser.search.order.US.2=Yahoo");
+pref("browser.search.order.US.3",                "data:text/plain,browser.search.order.US.3=Bing");
+
+// search bar results always open in a new tab
+pref("browser.search.openintab", false);
+
+// context menu searches open in the foreground
+pref("browser.search.context.loadInBackground", false);
+
+// comma seperated list of of engines to hide in the search panel.
+pref("browser.search.hiddenOneOffs", "");
+
+#ifndef RELEASE_OR_BETA
+pref("browser.search.reset.enabled", true);
+#endif
+
+pref("browser.sessionhistory.max_entries", 50);
+
+// Built-in default permissions.
+pref("permissions.manager.defaultsUrl", "resource://app/defaults/permissions");
+
+// handle links targeting new windows
+// 1=current window/tab, 2=new window, 3=new tab in most recent window
+pref("browser.link.open_newwindow", 3);
+
+// handle external links (i.e. links opened from a different application)
+// default: use browser.link.open_newwindow
+// 1-3: see browser.link.open_newwindow for interpretation
+pref("browser.link.open_newwindow.override.external", -1);
+
+// 0: no restrictions - divert everything
+// 1: don't divert window.open at all
+// 2: don't divert window.open with features
+pref("browser.link.open_newwindow.restriction", 2);
+
+// If true, this pref causes windows opened by window.open to be forced into new
+// tabs (rather than potentially opening separate windows, depending on
+// window.open arguments) when the browser is in fullscreen mode.
+// We set this differently on Mac because the fullscreen implementation there is
+// different.
+#ifdef XP_MACOSX
+pref("browser.link.open_newwindow.disabled_in_fullscreen", true);
+#else
+pref("browser.link.open_newwindow.disabled_in_fullscreen", false);
+#endif
+
+// Tabbed browser
+pref("browser.tabs.closeWindowWithLastTab", true);
+pref("browser.tabs.insertRelatedAfterCurrent", true);
+pref("browser.tabs.warnOnClose", true);
+pref("browser.tabs.warnOnCloseOtherTabs", true);
+pref("browser.tabs.warnOnOpen", true);
+pref("browser.tabs.maxOpenBeforeWarn", 15);
+pref("browser.tabs.loadInBackground", true);
+pref("browser.tabs.opentabfor.middleclick", true);
+pref("browser.tabs.loadDivertedInBackground", false);
+pref("browser.tabs.loadBookmarksInBackground", false);
+pref("browser.tabs.tabClipWidth", 140);
+pref("browser.tabs.animate", true);
+#ifdef UNIX_BUT_NOT_MAC
+pref("browser.tabs.drawInTitlebar", false);
+#else
+pref("browser.tabs.drawInTitlebar", true);
+#endif
+
+// When tabs opened by links in other tabs via a combination of
+// browser.link.open_newwindow being set to 3 and target="_blank" etc are
+// closed:
+// true   return to the tab that opened this tab (its owner)
+// false  return to the adjacent tab (old default)
+pref("browser.tabs.selectOwnerOnClose", true);
+
+pref("browser.tabs.showAudioPlayingIcon", true);
+// This should match Chromium's audio indicator delay.
+pref("browser.tabs.delayHidingAudioPlayingIconMS", 3000);
+
+pref("browser.tabs.dontfocusfordialogs", true);
+
+pref("browser.ctrlTab.previews", false);
+
+// By default, do not export HTML at shutdown.
+// If true, at shutdown the bookmarks in your menu and toolbar will
+// be exported as HTML to the bookmarks.html file.
+pref("browser.bookmarks.autoExportHTML",          false);
+
+// The maximum number of daily bookmark backups to
+// keep in {PROFILEDIR}/bookmarkbackups. Special values:
+// -1: unlimited
+//  0: no backups created (and deletes all existing backups)
+pref("browser.bookmarks.max_backups",             15);
+
+pref("browser.bookmarks.showRecentlyBookmarked",  true);
+
+// Scripts & Windows prefs
+pref("dom.disable_open_during_load",              true);
+pref("javascript.options.showInConsole",          true);
+#ifdef DEBUG
+pref("general.warnOnAboutConfig",                 false);
+#endif
+
+// This is the pref to control the location bar, change this to true to
+// force this - this makes the origin of popup windows more obvious to avoid
+// spoofing. We would rather not do it by default because it affects UE for web
+// applications, but without it there isn't a really good way to prevent chrome
+// spoofing, see bug 337344
+pref("dom.disable_window_open_feature.location",  true);
+// prevent JS from setting status messages
+pref("dom.disable_window_status_change",          true);
+// allow JS to move and resize existing windows
+pref("dom.disable_window_move_resize",            false);
+// prevent JS from monkeying with window focus, etc
+pref("dom.disable_window_flip",                   true);
+
+// popups.policy 1=allow,2=reject
+pref("privacy.popups.policy",               1);
+pref("privacy.popups.usecustom",            true);
+pref("privacy.popups.showBrowserMessage",   true);
+
+pref("privacy.item.cookies",                false);
+
+pref("privacy.clearOnShutdown.history",     true);
+pref("privacy.clearOnShutdown.formdata",    true);
+pref("privacy.clearOnShutdown.downloads",   true);
+pref("privacy.clearOnShutdown.cookies",     true);
+pref("privacy.clearOnShutdown.cache",       true);
+pref("privacy.clearOnShutdown.sessions",    true);
+pref("privacy.clearOnShutdown.offlineApps", false);
+pref("privacy.clearOnShutdown.siteSettings", false);
+pref("privacy.clearOnShutdown.openWindows", false);
+
+pref("privacy.cpd.history",                 true);
+pref("privacy.cpd.formdata",                true);
+pref("privacy.cpd.passwords",               false);
+pref("privacy.cpd.downloads",               true);
+pref("privacy.cpd.cookies",                 true);
+pref("privacy.cpd.cache",                   true);
+pref("privacy.cpd.sessions",                true);
+pref("privacy.cpd.offlineApps",             false);
+pref("privacy.cpd.siteSettings",            false);
+pref("privacy.cpd.openWindows",             false);
+
+// What default should we use for the time span in the sanitizer:
+// 0 - Clear everything
+// 1 - Last Hour
+// 2 - Last 2 Hours
+// 3 - Last 4 Hours
+// 4 - Today
+// 5 - Last 5 minutes
+// 6 - Last 24 hours
+pref("privacy.sanitize.timeSpan", 1);
+pref("privacy.sanitize.sanitizeOnShutdown", false);
+
+pref("privacy.sanitize.migrateFx3Prefs",    false);
+
+pref("privacy.panicButton.enabled",         true);
+
+pref("privacy.firstparty.isolate",          false);
+
+pref("network.proxy.share_proxy_settings",  false); // use the same proxy settings for all protocols
+
+// simple gestures support
+pref("browser.gesture.swipe.left", "Browser:BackOrBackDuplicate");
+pref("browser.gesture.swipe.right", "Browser:ForwardOrForwardDuplicate");
+pref("browser.gesture.swipe.up", "cmd_scrollTop");
+pref("browser.gesture.swipe.down", "cmd_scrollBottom");
+#ifdef XP_MACOSX
+pref("browser.gesture.pinch.latched", true);
+pref("browser.gesture.pinch.threshold", 150);
+#else
+pref("browser.gesture.pinch.latched", false);
+pref("browser.gesture.pinch.threshold", 25);
+#endif
+#ifdef XP_WIN
+// Enabled for touch input display zoom.
+pref("browser.gesture.pinch.out", "cmd_fullZoomEnlarge");
+pref("browser.gesture.pinch.in", "cmd_fullZoomReduce");
+pref("browser.gesture.pinch.out.shift", "cmd_fullZoomReset");
+pref("browser.gesture.pinch.in.shift", "cmd_fullZoomReset");
+#else
+// Disabled by default due to issues with track pad input.
+pref("browser.gesture.pinch.out", "");
+pref("browser.gesture.pinch.in", "");
+pref("browser.gesture.pinch.out.shift", "");
+pref("browser.gesture.pinch.in.shift", "");
+#endif
+pref("browser.gesture.twist.latched", false);
+pref("browser.gesture.twist.threshold", 0);
+pref("browser.gesture.twist.right", "cmd_gestureRotateRight");
+pref("browser.gesture.twist.left", "cmd_gestureRotateLeft");
+pref("browser.gesture.twist.end", "cmd_gestureRotateEnd");
+pref("browser.gesture.tap", "cmd_fullZoomReset");
+
+pref("browser.snapshots.limit", 0);
+
+// 0: Nothing happens
+// 1: Scrolling contents
+// 2: Go back or go forward, in your history
+// 3: Zoom in or out.
+#ifdef XP_MACOSX
+// On OS X, if the wheel has one axis only, shift+wheel comes through as a
+// horizontal scroll event. Thus, we can't assign anything other than normal
+// scrolling to shift+wheel.
+pref("mousewheel.with_alt.action", 2);
+pref("mousewheel.with_shift.action", 1);
+// On MacOS X, control+wheel is typically handled by system and we don't
+// receive the event.  So, command key which is the main modifier key for
+// acceleration is the best modifier for zoom-in/out.  However, we should keep
+// the control key setting for backward compatibility.
+pref("mousewheel.with_meta.action", 3); // command key on Mac
+// Disable control-/meta-modified horizontal mousewheel events, since
+// those are used on Mac as part of modified swipe gestures (e.g.
+// Left swipe+Cmd = go back in a new tab).
+pref("mousewheel.with_control.action.override_x", 0);
+pref("mousewheel.with_meta.action.override_x", 0);
+#else
+pref("mousewheel.with_alt.action", 1);
+pref("mousewheel.with_shift.action", 2);
+pref("mousewheel.with_meta.action", 1); // win key on Win, Super/Hyper on Linux
+#endif
+pref("mousewheel.with_control.action",3);
+pref("mousewheel.with_win.action", 1);
+
+pref("browser.xul.error_pages.enabled", true);
+pref("browser.xul.error_pages.expert_bad_cert", false);
+
+// Enable captive portal detection.
+pref("network.captive-portal-service.enabled", true);
+
+// If true, network link events will change the value of navigator.onLine
+pref("network.manage-offline-status", true);
+
+// We want to make sure mail URLs are handled externally...
+pref("network.protocol-handler.external.mailto", true); // for mail
+pref("network.protocol-handler.external.news", true);   // for news
+pref("network.protocol-handler.external.snews", true);  // for secure news
+pref("network.protocol-handler.external.nntp", true);   // also news
+#ifdef XP_WIN
+pref("network.protocol-handler.external.ms-windows-store", true);
+#endif
+
+// ...without warning dialogs
+pref("network.protocol-handler.warn-external.mailto", false);
+pref("network.protocol-handler.warn-external.news", false);
+pref("network.protocol-handler.warn-external.snews", false);
+pref("network.protocol-handler.warn-external.nntp", false);
+#ifdef XP_WIN
+pref("network.protocol-handler.warn-external.ms-windows-store", false);
+#endif
+
+// By default, all protocol handlers are exposed.  This means that
+// the browser will respond to openURL commands for all URL types.
+// It will also try to open link clicks inside the browser before
+// failing over to the system handlers.
+pref("network.protocol-handler.expose-all", true);
+pref("network.protocol-handler.expose.mailto", false);
+pref("network.protocol-handler.expose.news", false);
+pref("network.protocol-handler.expose.snews", false);
+pref("network.protocol-handler.expose.nntp", false);
+
+pref("accessibility.typeaheadfind", false);
+pref("accessibility.typeaheadfind.timeout", 5000);
+pref("accessibility.typeaheadfind.linksonly", false);
+pref("accessibility.typeaheadfind.flashBar", 1);
+
+#ifdef NIGHTLY_BUILD
+pref("findbar.highlightAll", true);
+pref("findbar.modalHighlight", true);
+#endif
+
+// Tracks when accessibility is loaded into the previous session.
+pref("accessibility.loadedInLastSession", false);
+
+pref("plugins.click_to_play", true);
+pref("plugins.testmode", false);
+
+pref("plugin.default.state", 1);
+
+// Plugins bundled in XPIs are enabled by default.
+pref("plugin.defaultXpi.state", 2);
+
+// Flash is enabled by default, and Java is click-to-activate by default on
+// all channels.
+pref("plugin.state.flash", 2);
+pref("plugin.state.java", 1);
+
+// On ESR only, we re-enable all plugins instead of only loading Flash.
+pref("plugin.load_flash_only", false);
+
+#ifdef XP_MACOSX
+pref("browser.preferences.animateFadeIn", true);
+#else
+pref("browser.preferences.animateFadeIn", false);
+#endif
+
+#ifdef XP_WIN
+pref("browser.preferences.instantApply", false);
+#else
+pref("browser.preferences.instantApply", true);
+#endif
+
+pref("browser.download.show_plugins_in_list", true);
+pref("browser.download.hide_plugins_without_extensions", true);
+
+// Backspace and Shift+Backspace behavior
+// 0 goes Back/Forward
+// 1 act like PgUp/PgDown
+// 2 and other values, nothing
+#ifdef UNIX_BUT_NOT_MAC
+pref("browser.backspace_action", 2);
+#else
+pref("browser.backspace_action", 0);
+#endif
+
+// this will automatically enable inline spellchecking (if it is available) for
+// editable elements in HTML
+// 0 = spellcheck nothing
+// 1 = check multi-line controls [default]
+// 2 = check multi/single line controls
+pref("layout.spellcheckDefault", 1);
+
+pref("browser.send_pings", false);
+
+/* initial web feed readers list */
+pref("browser.contentHandlers.types.0.title", "chrome://browser-region/locale/region.properties");
+pref("browser.contentHandlers.types.0.uri", "chrome://browser-region/locale/region.properties");
+pref("browser.contentHandlers.types.0.type", "application/vnd.mozilla.maybe.feed");
+pref("browser.contentHandlers.types.1.title", "chrome://browser-region/locale/region.properties");
+pref("browser.contentHandlers.types.1.uri", "chrome://browser-region/locale/region.properties");
+pref("browser.contentHandlers.types.1.type", "application/vnd.mozilla.maybe.feed");
+pref("browser.contentHandlers.types.2.title", "chrome://browser-region/locale/region.properties");
+pref("browser.contentHandlers.types.2.uri", "chrome://browser-region/locale/region.properties");
+pref("browser.contentHandlers.types.2.type", "application/vnd.mozilla.maybe.feed");
+pref("browser.contentHandlers.types.3.title", "chrome://browser-region/locale/region.properties");
+pref("browser.contentHandlers.types.3.uri", "chrome://browser-region/locale/region.properties");
+pref("browser.contentHandlers.types.3.type", "application/vnd.mozilla.maybe.feed");
+pref("browser.contentHandlers.types.4.title", "chrome://browser-region/locale/region.properties");
+pref("browser.contentHandlers.types.4.uri", "chrome://browser-region/locale/region.properties");
+pref("browser.contentHandlers.types.4.type", "application/vnd.mozilla.maybe.feed");
+pref("browser.contentHandlers.types.5.title", "chrome://browser-region/locale/region.properties");
+pref("browser.contentHandlers.types.5.uri", "chrome://browser-region/locale/region.properties");
+pref("browser.contentHandlers.types.5.type", "application/vnd.mozilla.maybe.feed");
+
+pref("browser.feeds.handler", "ask");
+pref("browser.videoFeeds.handler", "ask");
+pref("browser.audioFeeds.handler", "ask");
+
+// At startup, if the handler service notices that the version number in the
+// region.properties file is newer than the version number in the handler
+// service datastore, it will add any new handlers it finds in the prefs (as
+// seeded by this file) to its datastore.
+pref("gecko.handlerService.defaultHandlersVersion", "chrome://browser-region/locale/region.properties");
+
+// The default set of web-based protocol handlers shown in the application
+// selection dialog for webcal: ; I've arbitrarily picked 4 default handlers
+// per protocol, but if some locale wants more than that (or defaults for some
+// protocol not currently listed here), we should go ahead and add those.
+
+// webcal
+pref("gecko.handlerService.schemes.webcal.0.name", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.webcal.0.uriTemplate", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.webcal.1.name", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.webcal.1.uriTemplate", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.webcal.2.name", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.webcal.2.uriTemplate", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.webcal.3.name", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.webcal.3.uriTemplate", "chrome://browser-region/locale/region.properties");
+
+// mailto
+pref("gecko.handlerService.schemes.mailto.0.name", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.mailto.0.uriTemplate", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.mailto.1.name", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.mailto.1.uriTemplate", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.mailto.2.name", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.mailto.2.uriTemplate", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.mailto.3.name", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.mailto.3.uriTemplate", "chrome://browser-region/locale/region.properties");
+
+// irc
+pref("gecko.handlerService.schemes.irc.0.name", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.irc.0.uriTemplate", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.irc.1.name", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.irc.1.uriTemplate", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.irc.2.name", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.irc.2.uriTemplate", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.irc.3.name", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.irc.3.uriTemplate", "chrome://browser-region/locale/region.properties");
+
+// ircs
+pref("gecko.handlerService.schemes.ircs.0.name", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.ircs.0.uriTemplate", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.ircs.1.name", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.ircs.1.uriTemplate", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.ircs.2.name", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.ircs.2.uriTemplate", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.ircs.3.name", "chrome://browser-region/locale/region.properties");
+pref("gecko.handlerService.schemes.ircs.3.uriTemplate", "chrome://browser-region/locale/region.properties");
+
+// By default, we don't want protocol/content handlers to be registered from a different host, see bug 402287
+pref("gecko.handlerService.allowRegisterFromDifferentHost", false);
+
+pref("browser.geolocation.warning.infoURL", "https://www.mozilla.org/%LOCALE%/firefox/geolocation/");
+
+pref("browser.EULA.version", 3);
+pref("browser.rights.version", 3);
+pref("browser.rights.3.shown", false);
+
+#ifdef DEBUG
+// Don't show the about:rights notification in debug builds.
+pref("browser.rights.override", true);
+#endif
+
+pref("browser.selfsupport.url", "https://self-repair.mozilla.org/%LOCALE%/repair");
+
+pref("browser.sessionstore.resume_from_crash", true);
+pref("browser.sessionstore.resume_session_once", false);
+
+// minimal interval between two save operations in milliseconds
+pref("browser.sessionstore.interval", 15000);
+// on which sites to save text data, POSTDATA and cookies
+// 0 = everywhere, 1 = unencrypted sites, 2 = nowhere
+pref("browser.sessionstore.privacy_level", 0);
+// how many tabs can be reopened (per window)
+pref("browser.sessionstore.max_tabs_undo", 10);
+// how many windows can be reopened (per session) - on non-OS X platforms this
+// pref may be ignored when dealing with pop-up windows to ensure proper startup
+pref("browser.sessionstore.max_windows_undo", 3);
+// number of crashes that can occur before the about:sessionrestore page is displayed
+// (this pref has no effect if more than 6 hours have passed since the last crash)
+pref("browser.sessionstore.max_resumed_crashes", 1);
+// number of back button session history entries to restore (-1 = all of them)
+pref("browser.sessionstore.max_serialize_back", 10);
+// number of forward button session history entries to restore (-1 = all of them)
+pref("browser.sessionstore.max_serialize_forward", -1);
+// restore_on_demand overrides MAX_CONCURRENT_TAB_RESTORES (sessionstore constant)
+// and restore_hidden_tabs. When true, tabs will not be restored until they are
+// focused (also applies to tabs that aren't visible). When false, the values
+// for MAX_CONCURRENT_TAB_RESTORES and restore_hidden_tabs are respected.
+// Selected tabs are always restored regardless of this pref.
+pref("browser.sessionstore.restore_on_demand", true);
+// Whether to automatically restore hidden tabs (i.e., tabs in other tab groups) or not
+pref("browser.sessionstore.restore_hidden_tabs", false);
+// If restore_on_demand is set, pinned tabs are restored on startup by default.
+// When set to true, this pref overrides that behavior, and pinned tabs will only
+// be restored when they are focused.
+pref("browser.sessionstore.restore_pinned_tabs_on_demand", false);
+// The version at which we performed the latest upgrade backup
+pref("browser.sessionstore.upgradeBackup.latestBuildID", "");
+// How many upgrade backups should be kept
+pref("browser.sessionstore.upgradeBackup.maxUpgradeBackups", 3);
+// End-users should not run sessionstore in debug mode
+pref("browser.sessionstore.debug", false);
+// Causes SessionStore to ignore non-final update messages from
+// browser tabs that were not caused by a flush from the parent.
+// This is a testing flag and should not be used by end-users.
+pref("browser.sessionstore.debug.no_auto_updates", false);
+// Forget closed windows/tabs after two weeks
+pref("browser.sessionstore.cleanup.forget_closed_after", 1209600000);
+
+// allow META refresh by default
+pref("accessibility.blockautorefresh", false);
+
+// Whether history is enabled or not.
+pref("places.history.enabled", true);
+
+// the (maximum) number of the recent visits to sample
+// when calculating frecency
+pref("places.frecency.numVisits", 10);
+
+// buckets (in days) for frecency calculation
+pref("places.frecency.firstBucketCutoff", 4);
+pref("places.frecency.secondBucketCutoff", 14);
+pref("places.frecency.thirdBucketCutoff", 31);
+pref("places.frecency.fourthBucketCutoff", 90);
+
+// weights for buckets for frecency calculations
+pref("places.frecency.firstBucketWeight", 100);
+pref("places.frecency.secondBucketWeight", 70);
+pref("places.frecency.thirdBucketWeight", 50);
+pref("places.frecency.fourthBucketWeight", 30);
+pref("places.frecency.defaultBucketWeight", 10);
+
+// bonus (in percent) for visit transition types for frecency calculations
+pref("places.frecency.embedVisitBonus", 0);
+pref("places.frecency.framedLinkVisitBonus", 0);
+pref("places.frecency.linkVisitBonus", 100);
+pref("places.frecency.typedVisitBonus", 2000);
+pref("places.frecency.bookmarkVisitBonus", 75);
+pref("places.frecency.downloadVisitBonus", 0);
+pref("places.frecency.permRedirectVisitBonus", 0);
+pref("places.frecency.tempRedirectVisitBonus", 0);
+pref("places.frecency.reloadVisitBonus", 0);
+pref("places.frecency.defaultVisitBonus", 0);
+
+// bonus (in percent) for place types for frecency calculations
+pref("places.frecency.unvisitedBookmarkBonus", 140);
+pref("places.frecency.unvisitedTypedBonus", 200);
+
+// Controls behavior of the "Add Exception" dialog launched from SSL error pages
+// 0 - don't pre-populate anything
+// 1 - pre-populate site URL, but don't fetch certificate
+// 2 - pre-populate site URL and pre-fetch certificate
+pref("browser.ssl_override_behavior", 2);
+
+// True if the user should be prompted when a web application supports
+// offline apps.
+pref("browser.offline-apps.notify", true);
+
+// if true, use full page zoom instead of text zoom
+pref("browser.zoom.full", true);
+
+// Whether or not to save and restore zoom levels on a per-site basis.
+pref("browser.zoom.siteSpecific", true);
+
+// Whether or not to update background tabs to the current zoom level.
+pref("browser.zoom.updateBackgroundTabs", true);
+
+// The breakpad report server to link to in about:crashes
+pref("breakpad.reportURL", "https://crash-stats.mozilla.com/report/index/");
+
+// URL for "Learn More" for Crash Reporter
+pref("toolkit.crashreporter.infoURL",
+     "https://www.mozilla.org/legal/privacy/firefox.html#crash-reporter");
+
+// base URL for web-based support pages
+pref("app.support.baseURL", "https://support.mozilla.org/1/firefox/%VERSION%/%OS%/%LOCALE%/");
+
+// a11y conflicts with e10s support page
+pref("app.support.e10sAccessibilityUrl", "https://support.mozilla.org/1/firefox/%VERSION%/%OS%/%LOCALE%/accessibility-ppt");
+
+// base url for web-based feedback pages
+#ifdef MOZ_DEV_EDITION
+pref("app.feedback.baseURL", "https://input.mozilla.org/%LOCALE%/feedback/firefoxdev/%VERSION%/");
+#else
+pref("app.feedback.baseURL", "https://input.mozilla.org/%LOCALE%/feedback/%APP%/%VERSION%/");
+#endif
+
+
+// Name of alternate about: page for certificate errors (when undefined, defaults to about:neterror)
+pref("security.alternate_certificate_error_page", "certerror");
+
+// Whether to start the private browsing mode at application startup
+pref("browser.privatebrowsing.autostart", false);
+
+// Don't try to alter this pref, it'll be reset the next time you use the
+// bookmarking dialog
+pref("browser.bookmarks.editDialog.firstEditField", "namePicker");
+
+pref("dom.ipc.plugins.flash.disable-protected-mode", false);
+
+// Feature-disable the protected-mode auto-flip
+pref("browser.flash-protected-mode-flip.enable", false);
+
+// Whether we've already flipped protected mode automatically
+pref("browser.flash-protected-mode-flip.done", false);
+
+pref("dom.ipc.shims.enabledWarnings", false);
+
+// Start the browser in e10s mode
+pref("browser.tabs.remote.autostart", false);
+pref("browser.tabs.remote.desktopbehavior", true);
+
+#if defined(XP_WIN) && defined(MOZ_SANDBOX)
+// When this pref is true the Windows process sandbox will set up dummy
+// interceptions and log to the browser console when calls fail in the sandboxed
+// process and also if they are subsequently allowed by the broker process.
+// This will require a restart.
+pref("security.sandbox.windows.log", false);
+
+// Controls whether and how the Windows NPAPI plugin process is sandboxed.
+// To get a different setting for a particular plugin replace "default", with
+// the plugin's nice file name, see: nsPluginTag::GetNiceFileName.
+// On windows these levels are:
+// 0 - no sandbox
+// 1 - sandbox with USER_NON_ADMIN access token level
+// 2 - a more strict sandbox, which might cause functionality issues. This now
+//     includes running at low integrity.
+// 3 - the strongest settings we seem to be able to use without breaking
+//     everything, but will probably cause some functionality restrictions
+pref("dom.ipc.plugins.sandbox-level.default", 0);
+#if defined(_AMD64_)
+// The lines in PluginModuleParent.cpp should be changed in line with this.
+pref("dom.ipc.plugins.sandbox-level.flash", 2);
+#else
+pref("dom.ipc.plugins.sandbox-level.flash", 0);
+#endif
+
+#if defined(MOZ_CONTENT_SANDBOX)
+// This controls the strength of the Windows content process sandbox for testing
+// purposes. This will require a restart.
+// On windows these levels are:
+// See - security/sandbox/win/src/sandboxbroker/sandboxBroker.cpp
+// SetSecurityLevelForContentProcess() for what the different settings mean.
+#if defined(NIGHTLY_BUILD)
+pref("security.sandbox.content.level", 2);
+#else
+pref("security.sandbox.content.level", 1);
+#endif
+
+// This controls the depth of stack trace that is logged when Windows sandbox
+// logging is turned on.  This is only currently available for the content
+// process because the only other sandbox (for GMP) has too strict a policy to
+// allow stack tracing.  This does not require a restart to take effect.
+pref("security.sandbox.windows.log.stackTraceDepth", 0);
+#endif
+#endif
+
+#if defined(XP_MACOSX) && defined(MOZ_SANDBOX) && defined(MOZ_CONTENT_SANDBOX)
+// This pref is discussed in bug 1083344, the naming is inspired from its
+// Windows counterpart, but on Mac it's an integer which means:
+// 0 -> "no sandbox"
+// 1 -> "preliminary content sandboxing enabled: write access to
+//       home directory is prevented"
+// 2 -> "preliminary content sandboxing enabled with profile protection:
+//       write access to home directory is prevented, read and write access
+//       to ~/Library and profile directories are prevented (excluding
+//       $PROFILE/{extensions,weave})"
+// This setting is read when the content process is started. On Mac the content
+// process is killed when all windows are closed, so a change will take effect
+// when the 1st window is opened.
+#if defined(NIGHTLY_BUILD)
+pref("security.sandbox.content.level", 2);
+#else
+pref("security.sandbox.content.level", 1);
+#endif
+#endif
+
+#if defined(XP_LINUX) && defined(MOZ_SANDBOX) && defined(MOZ_CONTENT_SANDBOX)
+// This pref is introduced as part of bug 742434, the naming is inspired from
+// its Windows/Mac counterpart, but on Linux it's an integer which means:
+// 0 -> "no sandbox"
+// 1 -> "content sandbox using seccomp-bpf when available"
+// 2 -> "seccomp-bpf + file broker"
+// Content sandboxing on Linux is currently in the stage of
+// 'just getting it enabled', which includes a very permissive whitelist. We
+// enable seccomp-bpf on nightly to see if everything is running, or if we need
+// to whitelist more system calls.
+//
+// So the purpose of this setting is to allow nightly users to disable the
+// sandbox while we fix their problems. This way, they won't have to wait for
+// another nightly release which disables seccomp-bpf again.
+//
+// This setting may not be required anymore once we decide to permanently
+// enable the content sandbox.
+pref("security.sandbox.content.level", 2);
+#endif
+
+#if defined(XP_MACOSX) || defined(XP_WIN)
+#if defined(MOZ_SANDBOX) && defined(MOZ_CONTENT_SANDBOX)
+// ID (a UUID when set by gecko) that is used to form the name of a
+// sandbox-writable temporary directory to be used by content processes
+// when a temporary writable file is required in a level 1 sandbox.
+pref("security.sandbox.content.tempDirSuffix", "");
+#endif
+#endif
+
+// This pref governs whether we attempt to work around problems caused by
+// plugins using OS calls to manipulate the cursor while running out-of-
+// process.  These workarounds all involve intercepting (hooking) certain
+// OS calls in the plugin process, then arranging to make certain OS calls
+// in the browser process.  Eventually plugins will be required to use the
+// NPAPI to manipulate the cursor, and these workarounds will be removed.
+// See bug 621117.
+#ifdef XP_MACOSX
+pref("dom.ipc.plugins.nativeCursorSupport", true);
+#endif
+
+#ifdef XP_WIN
+pref("browser.taskbar.previews.enable", false);
+pref("browser.taskbar.previews.max", 20);
+pref("browser.taskbar.previews.cachetime", 5);
+pref("browser.taskbar.lists.enabled", true);
+pref("browser.taskbar.lists.frequent.enabled", true);
+pref("browser.taskbar.lists.recent.enabled", false);
+pref("browser.taskbar.lists.maxListItemCount", 7);
+pref("browser.taskbar.lists.tasks.enabled", true);
+pref("browser.taskbar.lists.refreshInSeconds", 120);
+#endif
+
+// The sync engines to use.
+pref("services.sync.registerEngines", "Bookmarks,Form,History,Password,Prefs,Tab,Addons,ExtensionStorage");
+// Preferences to be synced by default
+pref("services.sync.prefs.sync.accessibility.blockautorefresh", true);
+pref("services.sync.prefs.sync.accessibility.browsewithcaret", true);
+pref("services.sync.prefs.sync.accessibility.typeaheadfind", true);
+pref("services.sync.prefs.sync.accessibility.typeaheadfind.linksonly", true);
+pref("services.sync.prefs.sync.addons.ignoreUserEnabledChanges", true);
+// The addons prefs related to repository verification are intentionally
+// not synced for security reasons. If a system is compromised, a user
+// could weaken the pref locally, install an add-on from an untrusted
+// source, and this would propagate automatically to other,
+// uncompromised Sync-connected devices.
+pref("services.sync.prefs.sync.browser.ctrlTab.previews", true);
+pref("services.sync.prefs.sync.browser.download.useDownloadDir", true);
+pref("services.sync.prefs.sync.browser.formfill.enable", true);
+pref("services.sync.prefs.sync.browser.link.open_newwindow", true);
+pref("services.sync.prefs.sync.browser.newtabpage.enabled", true);
+pref("services.sync.prefs.sync.browser.newtabpage.enhanced", true);
+pref("services.sync.prefs.sync.browser.newtabpage.pinned", true);
+pref("services.sync.prefs.sync.browser.offline-apps.notify", true);
+pref("services.sync.prefs.sync.browser.safebrowsing.phishing.enabled", true);
+pref("services.sync.prefs.sync.browser.safebrowsing.malware.enabled", true);
+pref("services.sync.prefs.sync.browser.search.update", true);
+pref("services.sync.prefs.sync.browser.sessionstore.restore_on_demand", true);
+pref("services.sync.prefs.sync.browser.startup.homepage", true);
+pref("services.sync.prefs.sync.browser.startup.page", true);
+pref("services.sync.prefs.sync.browser.tabs.loadInBackground", true);
+pref("services.sync.prefs.sync.browser.tabs.warnOnClose", true);
+pref("services.sync.prefs.sync.browser.tabs.warnOnOpen", true);
+pref("services.sync.prefs.sync.browser.urlbar.autocomplete.enabled", true);
+pref("services.sync.prefs.sync.browser.urlbar.maxRichResults", true);
+pref("services.sync.prefs.sync.browser.urlbar.suggest.bookmark", true);
+pref("services.sync.prefs.sync.browser.urlbar.suggest.history", true);
+pref("services.sync.prefs.sync.browser.urlbar.suggest.history.onlyTyped", true);
+pref("services.sync.prefs.sync.browser.urlbar.suggest.openpage", true);
+pref("services.sync.prefs.sync.browser.urlbar.suggest.searches", true);
+pref("services.sync.prefs.sync.dom.disable_open_during_load", true);
+pref("services.sync.prefs.sync.dom.disable_window_flip", true);
+pref("services.sync.prefs.sync.dom.disable_window_move_resize", true);
+pref("services.sync.prefs.sync.dom.event.contextmenu.enabled", true);
+pref("services.sync.prefs.sync.extensions.personas.current", true);
+pref("services.sync.prefs.sync.extensions.update.enabled", true);
+pref("services.sync.prefs.sync.intl.accept_languages", true);
+pref("services.sync.prefs.sync.javascript.enabled", true);
+pref("services.sync.prefs.sync.layout.spellcheckDefault", true);
+pref("services.sync.prefs.sync.lightweightThemes.selectedThemeID", true);
+pref("services.sync.prefs.sync.lightweightThemes.usedThemes", true);
+pref("services.sync.prefs.sync.network.cookie.cookieBehavior", true);
+pref("services.sync.prefs.sync.network.cookie.lifetimePolicy", true);
+pref("services.sync.prefs.sync.network.cookie.lifetime.days", true);
+pref("services.sync.prefs.sync.network.cookie.thirdparty.sessionOnly", true);
+pref("services.sync.prefs.sync.permissions.default.image", true);
+pref("services.sync.prefs.sync.pref.advanced.images.disable_button.view_image", true);
+pref("services.sync.prefs.sync.pref.advanced.javascript.disable_button.advanced", true);
+pref("services.sync.prefs.sync.pref.downloads.disable_button.edit_actions", true);
+pref("services.sync.prefs.sync.pref.privacy.disable_button.cookie_exceptions", true);
+pref("services.sync.prefs.sync.privacy.clearOnShutdown.cache", true);
+pref("services.sync.prefs.sync.privacy.clearOnShutdown.cookies", true);
+pref("services.sync.prefs.sync.privacy.clearOnShutdown.downloads", true);
+pref("services.sync.prefs.sync.privacy.clearOnShutdown.formdata", true);
+pref("services.sync.prefs.sync.privacy.clearOnShutdown.history", true);
+pref("services.sync.prefs.sync.privacy.clearOnShutdown.offlineApps", true);
+pref("services.sync.prefs.sync.privacy.clearOnShutdown.sessions", true);
+pref("services.sync.prefs.sync.privacy.clearOnShutdown.siteSettings", true);
+pref("services.sync.prefs.sync.privacy.donottrackheader.enabled", true);
+pref("services.sync.prefs.sync.privacy.sanitize.sanitizeOnShutdown", true);
+pref("services.sync.prefs.sync.privacy.trackingprotection.enabled", true);
+pref("services.sync.prefs.sync.privacy.trackingprotection.pbmode.enabled", true);
+pref("services.sync.prefs.sync.security.OCSP.enabled", true);
+pref("services.sync.prefs.sync.security.OCSP.require", true);
+pref("services.sync.prefs.sync.security.default_personal_cert", true);
+pref("services.sync.prefs.sync.security.tls.version.min", true);
+pref("services.sync.prefs.sync.security.tls.version.max", true);
+pref("services.sync.prefs.sync.services.sync.syncedTabs.showRemoteIcons", true);
+pref("services.sync.prefs.sync.signon.rememberSignons", true);
+pref("services.sync.prefs.sync.spellchecker.dictionary", true);
+pref("services.sync.prefs.sync.xpinstall.whitelist.required", true);
+
+// A preference that controls whether we should show the icon for a remote tab.
+// This pref has no UI but exists because some people may be concerned that
+// fetching these icons to show remote tabs may leak information about that
+// user's tabs and bookmarks. Note this pref is also synced.
+pref("services.sync.syncedTabs.showRemoteIcons", true);
+
+pref("services.sync.sendTabToDevice.enabled", true);
+
+// Developer edition preferences
+#ifdef MOZ_DEV_EDITION
+sticky_pref("lightweightThemes.selectedThemeID", "firefox-devedition@mozilla.org");
+#else
+sticky_pref("lightweightThemes.selectedThemeID", "");
+#endif
+
+// Whether the character encoding menu is under the main Firefox button. This
+// preference is a string so that localizers can alter it.
+pref("browser.menu.showCharacterEncoding", "chrome://browser/locale/browser.properties");
+
+// Allow using tab-modal prompts when possible.
+pref("prompts.tab_modal.enabled", true);
+
+// Activates preloading of the new tab url.
+pref("browser.newtab.preload", true);
+
+// Remembers if the about:newtab intro has been shown
+// NOTE: This preference is unused but was not removed in case
+//       this information will be valuable in the future.
+pref("browser.newtabpage.introShown", false);
+
+// Toggles the content of 'about:newtab'. Shows the grid when enabled.
+pref("browser.newtabpage.enabled", true);
+
+// Toggles the enhanced content of 'about:newtab'. Shows sponsored tiles.
+sticky_pref("browser.newtabpage.enhanced", true);
+
+// enables Activity Stream inspired layout
+pref("browser.newtabpage.compact", false);
+
+// enables showing basic placeholders for missing thumbnails
+pref("browser.newtabpage.thumbnailPlaceholder", false);
+
+// number of rows of newtab grid
+pref("browser.newtabpage.rows", 3);
+
+// number of columns of newtab grid
+pref("browser.newtabpage.columns", 5);
+
+// directory tiles download URL
+pref("browser.newtabpage.directory.source", "https://tiles.services.mozilla.com/v3/links/fetch/%LOCALE%/%CHANNEL%");
+
+// endpoint to send newtab click and view pings
+pref("browser.newtabpage.directory.ping", "https://tiles.services.mozilla.com/v3/links/");
+
+// activates the remote-hosted newtab page
+pref("browser.newtabpage.remote", false);
+
+// remote newtab version targeted
+pref("browser.newtabpage.remote.version", "1");
+
+// Toggles endpoints allowed for remote newtab communications
+pref("browser.newtabpage.remote.mode", "production");
+
+// content-signature tests for remote newtab
+pref("browser.newtabpage.remote.content-signing-test", false);
+
+// verification keys for remote-hosted newtab page
+pref("browser.newtabpage.remote.keys", "");
+
+// Enable the DOM fullscreen API.
+pref("full-screen-api.enabled", true);
+
+// Startup Crash Tracking
+// number of startup crashes that can occur before starting into safe mode automatically
+// (this pref has no effect if more than 6 hours have passed since the last crash)
+pref("toolkit.startup.max_resumed_crashes", 3);
+
+// Completely disable pdf.js as an option to preview pdfs within firefox.
+// Note: if this is not disabled it does not necessarily mean pdf.js is the pdf
+// handler just that it is an option.
+pref("pdfjs.disabled", false);
+// Used by pdf.js to know the first time firefox is run with it installed so it
+// can become the default pdf viewer.
+pref("pdfjs.firstRun", true);
+// The values of preferredAction and alwaysAskBeforeHandling before pdf.js
+// became the default.
+pref("pdfjs.previousHandler.preferredAction", 0);
+pref("pdfjs.previousHandler.alwaysAskBeforeHandling", false);
+
+// The maximum amount of decoded image data we'll willingly keep around (we
+// might keep around more than this, but we'll try to get down to this value).
+// (This is intentionally on the high side; see bug 746055.)
+pref("image.mem.max_decoded_image_kb", 256000);
+
+pref("social.sidebar.unload_timeout_ms", 10000);
+
+// Activation from inside of share panel is possible if activationPanelEnabled
+// is true. Pref'd off for release while usage testing is done through beta.
+pref("social.share.activationPanelEnabled", true);
+pref("social.shareDirectory", "https://activations.cdn.mozilla.net/sharePanel.html");
+
+// Block insecure active content on https pages
+pref("security.mixed_content.block_active_content", true);
+
+// Show degraded UI for http pages with password fields.
+pref("security.insecure_password.ui.enabled", true);
+
+// Show in-content login form warning UI for insecure login fields
+pref("security.insecure_field_warning.contextual.enabled", true);
+
+// 1 = allow MITM for certificate pinning checks.
+pref("security.cert_pinning.enforcement_level", 1);
+
+
+// Override the Gecko-default value of false for Firefox.
+pref("plain_text.wrap_long_lines", true);
+
+// If this turns true, Moz*Gesture events are not called stopPropagation()
+// before content.
+pref("dom.debug.propagate_gesture_events_through_content", false);
+
+// The request URL of the GeoLocation backend.
+#ifdef RELEASE_OR_BETA
+pref("geo.wifi.uri", "https://www.googleapis.com/geolocation/v1/geolocate?key=%GOOGLE_API_KEY%");
+#else
+pref("geo.wifi.uri", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%");
+#endif
+
+#ifdef XP_MACOSX
+#ifdef RELEASE_OR_BETA
+pref("geo.provider.use_corelocation", false);
+#else
+pref("geo.provider.use_corelocation", true);
+#endif
+#endif
+
+#ifdef XP_WIN
+pref("geo.provider.ms-windows-location", false);
+#endif
+
+#ifdef MOZ_WIDGET_GTK
+#ifdef MOZ_GPSD
+#ifdef RELEASE_OR_BETA
+pref("geo.provider.use_gpsd", false);
+#else
+pref("geo.provider.use_gpsd", true);
+#endif
+#endif
+#endif
+
+// Necko IPC security checks only needed for app isolation for cookies/cache/etc:
+// currently irrelevant for desktop e10s
+pref("network.disable.ipc.security", true);
+
+// CustomizableUI debug logging.
+pref("browser.uiCustomization.debug", false);
+
+// CustomizableUI state of the browser's user interface
+pref("browser.uiCustomization.state", "");
+
+// The remote content URL shown for FxA signup. Must use HTTPS.
+pref("identity.fxaccounts.remote.signup.uri", "https://accounts.firefox.com/signup?service=sync&context=fx_desktop_v3");
+
+// The URL where remote content that forces re-authentication for Firefox Accounts
+// should be fetched.  Must use HTTPS.
+pref("identity.fxaccounts.remote.force_auth.uri", "https://accounts.firefox.com/force_auth?service=sync&context=fx_desktop_v3");
+
+// The remote content URL shown for signin in. Must use HTTPS.
+pref("identity.fxaccounts.remote.signin.uri", "https://accounts.firefox.com/signin?service=sync&context=fx_desktop_v3");
+
+// The remote content URL where FxAccountsWebChannel messages originate.
+pref("identity.fxaccounts.remote.webchannel.uri", "https://accounts.firefox.com/");
+
+// The value of the context query parameter passed in some fxa requests when config
+// discovery is enabled.
+pref("identity.fxaccounts.contextParam", "fx_desktop_v3");
+
+// The URL we take the user to when they opt to "manage" their Firefox Account.
+// Note that this will always need to be in the same TLD as the
+// "identity.fxaccounts.remote.signup.uri" pref.
+pref("identity.fxaccounts.settings.uri", "https://accounts.firefox.com/settings?service=sync&context=fx_desktop_v3");
+
+// The remote URL of the FxA Profile Server
+pref("identity.fxaccounts.remote.profile.uri", "https://profile.accounts.firefox.com/v1");
+
+// The remote URL of the FxA OAuth Server
+pref("identity.fxaccounts.remote.oauth.uri", "https://oauth.accounts.firefox.com/v1");
+
+// Whether we display profile images in the UI or not.
+pref("identity.fxaccounts.profile_image.enabled", true);
+
+// Token server used by the FxA Sync identity.
+pref("identity.sync.tokenserver.uri", "https://token.services.mozilla.com/1.0/sync/1.5");
+
+// URLs for promo links to mobile browsers. Note that consumers are expected to
+// append a value for utm_campaign.
+pref("identity.mobilepromo.android", "https://www.mozilla.org/firefox/android/?utm_source=firefox-browser&utm_medium=firefox-browser&utm_campaign=");
+pref("identity.mobilepromo.ios", "https://www.mozilla.org/firefox/ios/?utm_source=firefox-browser&utm_medium=firefox-browser&utm_campaign=");
+
+// Migrate any existing Firefox Account data from the default profile to the
+// Developer Edition profile.
+#ifdef MOZ_DEV_EDITION
+pref("identity.fxaccounts.migrateToDevEdition", true);
+#else
+pref("identity.fxaccounts.migrateToDevEdition", false);
+#endif
+
+// On GTK, we now default to showing the menubar only when alt is pressed:
+#ifdef MOZ_WIDGET_GTK
+pref("ui.key.menuAccessKeyFocuses", true);
+#endif
+
+// Encrypted media extensions.
+#ifdef XP_LINUX
+// On Linux EME is visible but disabled by default. This is so that the
+// "Play DRM content" checkbox in the Firefox UI is unchecked by default.
+// DRM requires downloading and installing proprietary binaries, which
+// users on an open source operating systems didn't opt into. The first
+// time a site using EME is encountered, the user will be prompted to
+// enable DRM, whereupon the EME plugin binaries will be downloaded if
+// permission is granted.
+pref("media.eme.enabled", false);
+#else
+pref("media.eme.enabled", true);
+#endif
+pref("media.eme.apiVisible", true);
+
+// Decode using Gecko Media Plugins in <video>, if a system decoder is not
+// availble and the preferred GMP is available.
+pref("media.gmp.decoder.enabled", false);
+
+// If decoding-via-GMP is turned on for <video>, use Adobe's GMP for decoding,
+// if it's available. Note: We won't fallback to another GMP if Adobe's is not
+// installed.
+pref("media.gmp.decoder.aac", 2);
+pref("media.gmp.decoder.h264", 2);
+
+// Whether we should run a test-pattern through EME GMPs before assuming they'll
+// decode H.264.
+pref("media.gmp.trial-create.enabled", true);
+
+// Note: when media.gmp-*.visible is true, provided we're running on a
+// supported platform/OS version, the corresponding CDM appears in the
+// plugins list, Firefox will download the GMP/CDM if enabled, and our
+// UI to re-enable EME prompts the user to re-enable EME if it's disabled
+// and script requests EME. If *.visible is false, we won't show the UI
+// to enable the CDM if its disabled; it's as if the keysystem is completely
+// unsupported.
+
+#ifdef MOZ_ADOBE_EME
+pref("media.gmp-eme-adobe.visible", true);
+// When Adobe EME is enabled in the build system, we don't actually enable
+// the plugin by default, so that it doesn't download and install by default.
+// When Adobe EME is first used, Firefox will prompt the user to enable it,
+// and then download the CDM.
+pref("media.gmp-eme-adobe.enabled", false);
+#endif
+
+#ifdef MOZ_WIDEVINE_EME
+pref("media.gmp-widevinecdm.visible", true);
+pref("media.gmp-widevinecdm.enabled", true);
+#endif
+
+// Play with different values of the decay time and get telemetry,
+// 0 means to randomize (and persist) the experiment value in users' profiles,
+// -1 means no experiment is run and we use the preferred value for frecency (6h)
+pref("browser.cache.frecency_experiment", 0);
+
+pref("browser.translation.detectLanguage", false);
+pref("browser.translation.neverForLanguages", "");
+// Show the translation UI bits, like the info bar, notification icon and preferences.
+pref("browser.translation.ui.show", false);
+// Allows to define the translation engine. Bing is default, Yandex may optionally switched on.
+pref("browser.translation.engine", "bing");
+
+// Telemetry settings.
+// Determines if Telemetry pings can be archived locally.
+pref("toolkit.telemetry.archive.enabled", true);
+
+// Telemetry experiments settings.
+pref("experiments.enabled", true);
+pref("experiments.manifest.fetchIntervalSeconds", 86400);
+pref("experiments.manifest.uri", "https://telemetry-experiment.cdn.mozilla.net/manifest/v1/firefox/%VERSION%/%CHANNEL%");
+// Whether experiments are supported by the current application profile.
+pref("experiments.supported", true);
+
+// Enable GMP support in the addon manager.
+pref("media.gmp-provider.enabled", true);
+
+#ifdef NIGHTLY_BUILD
+pref("privacy.trackingprotection.ui.enabled", true);
+#else
+pref("privacy.trackingprotection.ui.enabled", false);
+#endif
+pref("privacy.trackingprotection.introCount", 0);
+pref("privacy.trackingprotection.introURL", "https://www.mozilla.org/%LOCALE%/firefox/%VERSION%/tracking-protection/start/");
+
+// Enable Contextual Identity Containers
+#ifdef NIGHTLY_BUILD
+pref("privacy.userContext.enabled", true);
+pref("privacy.userContext.ui.enabled", true);
+pref("privacy.usercontext.about_newtab_segregation.enabled", true);
+#else
+pref("privacy.userContext.enabled", false);
+pref("privacy.userContext.ui.enabled", false);
+pref("privacy.usercontext.about_newtab_segregation.enabled", false);
+#endif
+
+#ifndef RELEASE_OR_BETA
+// At the moment, autostart.2 is used, while autostart.1 is unused.
+// We leave it here set to false to reset users' defaults and allow
+// us to change everybody to true in the future, when desired.
+pref("browser.tabs.remote.autostart.1", false);
+pref("browser.tabs.remote.autostart.2", true);
+#endif
+
+// For the about:tabcrashed page
+pref("browser.tabs.crashReporting.sendReport", true);
+pref("browser.tabs.crashReporting.includeURL", false);
+pref("browser.tabs.crashReporting.requestEmail", false);
+pref("browser.tabs.crashReporting.emailMe", false);
+pref("browser.tabs.crashReporting.email", "");
+
+// Enable e10s add-on interposition by default.
+pref("extensions.interposition.enabled", true);
+pref("extensions.interposition.prefetching", true);
+
+// Enable blocking of e10s for add-on users on beta/release.
+#ifdef RELEASE_OR_BETA
+pref("extensions.e10sBlocksEnabling", true);
+#endif
+
+// How often to check for CPOW timeouts. CPOWs are only timed out by
+// the hang monitor.
+pref("dom.ipc.cpow.timeout", 500);
+
+// Causes access on unsafe CPOWs from browser code to throw by default.
+pref("dom.ipc.cpows.forbid-unsafe-from-browser", true);
+
+// Don't allow add-ons marked as multiprocessCompatible to use CPOWs.
+pref("dom.ipc.cpows.forbid-cpows-in-compat-addons", true);
+
+// ...except for these add-ons:
+pref("dom.ipc.cpows.allow-cpows-in-compat-addons", "{b9db16a4-6edc-47ec-a1f4-b86292ed211d},firegestures@xuldev.org,{DDC359D1-844A-42a7-9AA1-88A850A938A8},privateTab@infocatcher,mousegesturessuite@lemon_juice.addons.mozilla.org,treestyletab@piro.sakura.ne.jp,cliqz@cliqz.com,{AE93811A-5C9A-4d34-8462-F7B864FC4696},contextsearch2@lwz.addons.mozilla.org,{EF522540-89F5-46b9-B6FE-1829E2B572C6},{677a8f98-fd64-40b0-a883-b8c95d0cbf17},images@wink.su,fx-devtools,toolkit/require,url_advisor@kaspersky.com,{d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d},{dc572301-7619-498c-a57d-39143191b318},dta@downthemall.net,{86095750-AD15-46d8-BF32-C0789F7E6A32},screenwise-prod@google.com,{91aa5abe-9de4-4347-b7b5-322c38dd9271},secureLogin@blueimp.net,ich@maltegoetz.de,come.back.block.image.from@cat-in-136.blogspot.com,{7b1bf0b6-a1b9-42b0-b75d-252036438bdc},s3crypto@data,{1e0fd655-5aea-4b4c-a583-f76ef1e3af9c},akahuku.fx.sp@toshiakisp.github.io,{aff87fa2-a58e-4edd-b852-0a20203c1e17},{1018e4d6-728f-4b20-ad56-37578a4de76b},rehostimage@engy.us,lazarus@interclue.com,{b2e69492-2358-071a-7056-24ad0c3defb1},flashstopper@byo.co.il,{e4a8a97b-f2ed-450b-b12d-ee082ba24781},jid1-f3mYMbCpz2AZYl@jetpack,{8c550e28-88c9-4764-bb52-aa489cf2efcd},{37fa1426-b82d-11db-8314-0800200c9a66},{ac2cfa60-bc96-11e0-962b-0800200c9a66},igetter@presenta.net,killspinners@byo.co.il,abhere2@moztw.org,{fc6339b8-9581-4fc7-b824-dffcb091fcb7},wampi@wink.su,backtrack@byalexv.co.uk,Gladiator_X@mail.ru,{73a6fe31-595d-460b-a920-fcc0f8843232},{46551EC9-40F0-4e47-8E18-8E5CF550CFB8},acewebextension_unlisted@acestream.org,@screen_maker,yasearch@yandex.ru,sp@avast.com,s3google@translator,igetterextension@presenta.net,{C1A2A613-35F1-4FCF-B27F-2840527B6556},screenwise-testing@google.com,helper-sig@savefrom.net,browser-loader,ImageSaver@Merci.chao,proxtube@abz.agency,wrc@avast.com,{9AA46F4F-4DC7-4c06-97AF-5035170634FE},jid1-CikLKKPVkw6ipw@jetpack,artur.dubovoy@gmail.com,nlgfeb@nlgfeb.ext,{A065A84F-95B6-433A-A0C8-4C040B77CE8A},fdm_ffext@freedownloadmanager.org");
+
+// Enable e10s hang monitoring (slow script checking and plugin hang
+// detection).
+pref("dom.ipc.processHangMonitor", true);
+
+#ifdef DEBUG
+// Don't report hangs in DEBUG builds. They're too slow and often a
+// debugger is attached.
+pref("dom.ipc.reportProcessHangs", false);
+#else
+pref("dom.ipc.reportProcessHangs", true);
+#endif
+
+pref("browser.reader.detectedFirstArticle", false);
+// Don't limit how many nodes we care about on desktop:
+pref("reader.parse-node-limit", 0);
+
+// On desktop, we want the URLs to be included here for ease of debugging,
+// and because (normally) these errors are not persisted anywhere.
+pref("reader.errors.includeURLs", true);
+
+pref("view_source.tab", true);
+
+pref("dom.serviceWorkers.enabled", false);
+pref("dom.serviceWorkers.openWindow.enabled", false);
+
+// Enable Push API.
+pref("dom.push.enabled", false);
+
+// These are the thumbnail width/height set in about:newtab.
+// If you change this, ENSURE IT IS THE SAME SIZE SET
+// by about:newtab. These values are in CSS pixels.
+pref("toolkit.pageThumbs.minWidth", 280);
+pref("toolkit.pageThumbs.minHeight", 190);
+
+// Enable speech synthesis
+pref("media.webspeech.synth.enabled", true);
+
+pref("browser.esedbreader.loglevel", "Error");
+
+pref("browser.laterrun.enabled", false);
+
+pref("browser.migrate.automigrate.enabled", false);
+// 4 here means the suggestion notification will be automatically
+// hidden the 4th day, so it will actually be shown on 3 different days.
+pref("browser.migrate.automigrate.daysToOfferUndo", 4);
+pref("browser.migrate.automigrate.ui.enabled", true);
+
+pref("browser.migrate.chrome.history.limit", 0);
+pref("browser.migrate.chrome.history.maxAgeInDays", 0);
+
+// Enable browser frames for use on desktop.  Only exposed to chrome callers.
+pref("dom.mozBrowserFramesEnabled", true);
+
+pref("extensions.pocket.enabled", true);
+
+pref("signon.schemeUpgrades", true);
+
+// "Simplify Page" feature in Print Preview. This feature is disabled by default
+// in toolkit.
+//
+// This feature is only enabled on Nightly for Linux until bug 1306295 is fixed.
+// For non-Linux, this feature is only enabled up to early Beta.
+#ifdef UNIX_BUT_NOT_MAC
+#if defined(NIGHTLY_BUILD)
+pref("print.use_simplify_page", true);
+#endif
+#else
+#if defined(EARLY_BETA_OR_EARLIER)
+pref("print.use_simplify_page", true);
+#endif
+#endif
+
+// Space separated list of URLS that are allowed to send objects (instead of
+// only strings) through webchannels. This list is duplicated in mobile/android/app/mobile.js
+pref("webchannel.allowObject.urlWhitelist", "https://accounts.firefox.com https://content.cdn.mozilla.net https://input.mozilla.org https://support.mozilla.org https://install.mozilla.org");
+
+// Whether or not the browser should scan for unsubmitted
+// crash reports, and then show a notification for submitting
+// those reports.
+#ifdef EARLY_BETA_OR_EARLIER
+pref("browser.crashReports.unsubmittedCheck.enabled", true);
+#else
+pref("browser.crashReports.unsubmittedCheck.enabled", false);
+#endif
+
+// chancesUntilSuppress is how many times we'll show the unsubmitted
+// crash report notification across different days and shutdown
+// without a user choice before we suppress the notification for
+// some number of days.
+pref("browser.crashReports.unsubmittedCheck.chancesUntilSuppress", 4);
+pref("browser.crashReports.unsubmittedCheck.autoSubmit2", false);
+
+#ifdef NIGHTLY_BUILD
+// Enable the (fairly costly) client/server validation on nightly only. The other prefs
+// controlling validation are located in /services/sync/services-sync.js
+pref("services.sync.validation.enabled", true);
+#endif
diff --git a/browser/app/profile/pagethemes.rdf b/browser/app/profile/pagethemes.rdf
new file mode 100644
index 000000000..3d09b95f5
--- /dev/null
+++ b/browser/app/profile/pagethemes.rdf
@@ -0,0 +1,7 @@
+<?xml version="1.0"?> <!-- -*- Mode: SGML -*- -->
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/>
+
diff --git a/browser/app/profile/prefs.js b/browser/app/profile/prefs.js
new file mode 100644
index 000000000..8c6f0d639
--- /dev/null
+++ b/browser/app/profile/prefs.js
@@ -0,0 +1,13 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+# Mozilla User Preferences
+
+/* Do not edit this file.
+ *
+ * If you make changes to this file while the browser is running,
+ * the changes will be overwritten when the browser exits.
+ *
+ * To make a manual change to preferences, you can visit the URL about:config
+ */