Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

7 files changed, 5591 insertions, 0 deletions

diff --git a/browser/components/newtab/aboutwelcome/AboutWelcomeChild.jsm b/browser/components/newtab/aboutwelcome/AboutWelcomeChild.jsm
new file mode 100644
index 0000000000..0da59a5aa7
--- /dev/null
+++ b/browser/components/newtab/aboutwelcome/AboutWelcomeChild.jsm
@@ -0,0 +1,411 @@
+/* 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/. */
+
+"use strict";
+
+const EXPORTED_SYMBOLS = ["AboutWelcomeChild"];
+
+const { XPCOMUtils } = ChromeUtils.importESModule(
+  "resource://gre/modules/XPCOMUtils.sys.mjs"
+);
+
+const lazy = {};
+
+XPCOMUtils.defineLazyModuleGetters(lazy, {
+  DEFAULT_SITES: "resource://activity-stream/lib/DefaultSites.jsm",
+  ExperimentAPI: "resource://nimbus/ExperimentAPI.jsm",
+  shortURL: "resource://activity-stream/lib/ShortURL.jsm",
+  TippyTopProvider: "resource://activity-stream/lib/TippyTopProvider.jsm",
+  AboutWelcomeDefaults:
+    "resource://activity-stream/aboutwelcome/lib/AboutWelcomeDefaults.jsm",
+  NimbusFeatures: "resource://nimbus/ExperimentAPI.jsm",
+});
+
+XPCOMUtils.defineLazyGetter(lazy, "log", () => {
+  const { Logger } = ChromeUtils.import(
+    "resource://messaging-system/lib/Logger.jsm"
+  );
+  return new Logger("AboutWelcomeChild");
+});
+
+XPCOMUtils.defineLazyGetter(lazy, "tippyTopProvider", () =>
+  (async () => {
+    const provider = new lazy.TippyTopProvider();
+    await provider.init();
+    return provider;
+  })()
+);
+
+const SEARCH_REGION_PREF = "browser.search.region";
+
+XPCOMUtils.defineLazyPreferenceGetter(
+  lazy,
+  "searchRegion",
+  SEARCH_REGION_PREF,
+  ""
+);
+
+/**
+ * Lazily get importable sites from parent or reuse cached ones.
+ */
+function getImportableSites(child) {
+  return (
+    getImportableSites.cache ??
+    (getImportableSites.cache = (async () => {
+      // Use tippy top to get packaged rich icons
+      const tippyTop = await lazy.tippyTopProvider;
+      // Remove duplicate entries if they would appear the same
+      return `[${[
+        ...new Set(
+          (await child.sendQuery("AWPage:IMPORTABLE_SITES")).map(url => {
+            // Get both rich icon and short name and save for deduping
+            const site = { url };
+            tippyTop.processSite(site, "*");
+            return JSON.stringify({
+              icon: site.tippyTopIcon,
+              label: lazy.shortURL(site),
+            });
+          })
+        ),
+      ]}]`;
+    })())
+  );
+}
+
+async function getDefaultSites(child) {
+  // Get default TopSites by region
+  let sites = lazy.DEFAULT_SITES.get(
+    lazy.DEFAULT_SITES.has(lazy.searchRegion) ? lazy.searchRegion : ""
+  );
+
+  // Use tippy top to get packaged rich icons
+  const tippyTop = await lazy.tippyTopProvider;
+  let defaultSites = sites.split(",").map(link => {
+    let site = { url: link };
+    tippyTop.processSite(site);
+    return {
+      icon: site.tippyTopIcon,
+      title: lazy.shortURL(site),
+    };
+  });
+  return Cu.cloneInto(defaultSites, child.contentWindow);
+}
+
+async function getSelectedTheme(child) {
+  let activeThemeId = await child.sendQuery("AWPage:GET_SELECTED_THEME");
+  return activeThemeId;
+}
+
+class AboutWelcomeChild extends JSWindowActorChild {
+  actorCreated() {
+    this.exportFunctions();
+  }
+
+  /**
+   * Send event that can be handled by the page
+   * @param {{type: string, data?: any}} action
+   */
+  sendToPage(action) {
+    lazy.log.debug(`Sending to page: ${action.type}`);
+    const win = this.document.defaultView;
+    const event = new win.CustomEvent("AboutWelcomeChromeToContent", {
+      detail: Cu.cloneInto(action, win),
+    });
+    win.dispatchEvent(event);
+  }
+
+  /**
+   * Export functions that can be called by page js
+   */
+  exportFunctions() {
+    let window = this.contentWindow;
+
+    Cu.exportFunction(this.AWGetFeatureConfig.bind(this), window, {
+      defineAs: "AWGetFeatureConfig",
+    });
+
+    Cu.exportFunction(this.AWGetFxAMetricsFlowURI.bind(this), window, {
+      defineAs: "AWGetFxAMetricsFlowURI",
+    });
+
+    Cu.exportFunction(this.AWGetImportableSites.bind(this), window, {
+      defineAs: "AWGetImportableSites",
+    });
+
+    Cu.exportFunction(this.AWGetDefaultSites.bind(this), window, {
+      defineAs: "AWGetDefaultSites",
+    });
+
+    Cu.exportFunction(this.AWGetSelectedTheme.bind(this), window, {
+      defineAs: "AWGetSelectedTheme",
+    });
+
+    Cu.exportFunction(this.AWGetRegion.bind(this), window, {
+      defineAs: "AWGetRegion",
+    });
+
+    Cu.exportFunction(this.AWSelectTheme.bind(this), window, {
+      defineAs: "AWSelectTheme",
+    });
+
+    Cu.exportFunction(this.AWSendEventTelemetry.bind(this), window, {
+      defineAs: "AWSendEventTelemetry",
+    });
+
+    Cu.exportFunction(this.AWSendToParent.bind(this), window, {
+      defineAs: "AWSendToParent",
+    });
+
+    Cu.exportFunction(this.AWWaitForMigrationClose.bind(this), window, {
+      defineAs: "AWWaitForMigrationClose",
+    });
+
+    Cu.exportFunction(this.AWFinish.bind(this), window, {
+      defineAs: "AWFinish",
+    });
+
+    Cu.exportFunction(this.AWEnsureLangPackInstalled.bind(this), window, {
+      defineAs: "AWEnsureLangPackInstalled",
+    });
+
+    Cu.exportFunction(
+      this.AWNegotiateLangPackForLanguageMismatch.bind(this),
+      window,
+      {
+        defineAs: "AWNegotiateLangPackForLanguageMismatch",
+      }
+    );
+
+    Cu.exportFunction(this.AWSetRequestedLocales.bind(this), window, {
+      defineAs: "AWSetRequestedLocales",
+    });
+
+    Cu.exportFunction(this.AWSendToDeviceEmailsSupported.bind(this), window, {
+      defineAs: "AWSendToDeviceEmailsSupported",
+    });
+
+    Cu.exportFunction(this.AWNewScreen.bind(this), window, {
+      defineAs: "AWNewScreen",
+    });
+  }
+
+  /**
+   * Wrap a promise so content can use Promise methods.
+   */
+  wrapPromise(promise) {
+    return new this.contentWindow.Promise((resolve, reject) =>
+      promise.then(resolve, reject)
+    );
+  }
+
+  /**
+   * Clones the result of the query into the content window.
+   */
+  sendQueryAndCloneForContent(...sendQueryArgs) {
+    return this.wrapPromise(
+      (async () => {
+        return Cu.cloneInto(
+          await this.sendQuery(...sendQueryArgs),
+          this.contentWindow
+        );
+      })()
+    );
+  }
+
+  AWSelectTheme(data) {
+    return this.wrapPromise(
+      this.sendQuery("AWPage:SELECT_THEME", data.toUpperCase())
+    );
+  }
+
+  /**
+   * Send initial data to page including experiment information
+   */
+  async getAWContent() {
+    let attributionData = await this.sendQuery("AWPage:GET_ATTRIBUTION_DATA");
+
+    // Return to AMO gets returned early.
+    if (attributionData?.template) {
+      lazy.log.debug("Loading about:welcome with RTAMO attribution data");
+      return Cu.cloneInto(attributionData, this.contentWindow);
+    } else if (attributionData?.ua) {
+      lazy.log.debug("Loading about:welcome with UA attribution");
+    }
+
+    let experimentMetadata =
+      lazy.ExperimentAPI.getExperimentMetaData({
+        featureId: "aboutwelcome",
+      }) || {};
+
+    lazy.log.debug(
+      `Loading about:welcome with ${experimentMetadata?.slug ??
+        "no"} experiment`
+    );
+
+    let featureConfig = lazy.NimbusFeatures.aboutwelcome.getAllVariables();
+    featureConfig.needDefault = await this.sendQuery("AWPage:NEED_DEFAULT");
+    featureConfig.needPin = await this.sendQuery("AWPage:DOES_APP_NEED_PIN");
+    if (featureConfig.languageMismatchEnabled) {
+      featureConfig.appAndSystemLocaleInfo = await this.sendQuery(
+        "AWPage:GET_APP_AND_SYSTEM_LOCALE_INFO"
+      );
+    }
+
+    // The MR2022 onboarding variable overrides the about:welcome templateMR
+    // variable if enrolled.
+    const useMROnboarding = lazy.NimbusFeatures.majorRelease2022.getVariable(
+      "onboarding"
+    );
+    const useTemplateMR = useMROnboarding ?? featureConfig.templateMR;
+
+    // FeatureConfig (from experiments) has higher precendence
+    // to defaults. But the `screens` property isn't defined we shouldn't
+    // override the default with `null`
+    let defaults = lazy.AboutWelcomeDefaults.getDefaults(useTemplateMR);
+
+    const content = await lazy.AboutWelcomeDefaults.prepareContentForReact({
+      ...attributionData,
+      ...experimentMetadata,
+      ...defaults,
+      ...featureConfig,
+      templateMR: useTemplateMR,
+      screens: featureConfig.screens ?? defaults.screens,
+      backdrop: featureConfig.backdrop ?? defaults.backdrop,
+    });
+
+    return Cu.cloneInto(content, this.contentWindow);
+  }
+
+  AWGetFeatureConfig() {
+    return this.wrapPromise(this.getAWContent());
+  }
+
+  AWGetFxAMetricsFlowURI() {
+    return this.wrapPromise(this.sendQuery("AWPage:FXA_METRICS_FLOW_URI"));
+  }
+
+  AWGetImportableSites() {
+    return this.wrapPromise(getImportableSites(this));
+  }
+
+  AWGetDefaultSites() {
+    return this.wrapPromise(getDefaultSites(this));
+  }
+
+  AWGetSelectedTheme() {
+    return this.wrapPromise(getSelectedTheme(this));
+  }
+
+  /**
+   * Send Event Telemetry
+   * @param {object} eventData
+   */
+  AWSendEventTelemetry(eventData) {
+    this.AWSendToParent("TELEMETRY_EVENT", {
+      ...eventData,
+      event_context: {
+        ...eventData.event_context,
+      },
+    });
+  }
+
+  /**
+   * Send message that can be handled by AboutWelcomeParent.jsm
+   * @param {string} type
+   * @param {any=} data
+   */
+  AWSendToParent(type, data) {
+    this.sendAsyncMessage(`AWPage:${type}`, data);
+  }
+
+  AWWaitForMigrationClose() {
+    return this.wrapPromise(this.sendQuery("AWPage:WAIT_FOR_MIGRATION_CLOSE"));
+  }
+
+  AWGetRegion() {
+    return this.wrapPromise(this.sendQuery("AWPage:GET_REGION"));
+  }
+
+  AWFinish() {
+    this.contentWindow.location.href = "about:home";
+  }
+
+  AWEnsureLangPackInstalled(negotiated, screenContent) {
+    const content = Cu.cloneInto(screenContent, {});
+    return this.wrapPromise(
+      this.sendQuery(
+        "AWPage:ENSURE_LANG_PACK_INSTALLED",
+        negotiated.langPack
+      ).then(() => {
+        const formatting = [];
+        const l10n = new Localization(
+          ["branding/brand.ftl", "browser/newtab/onboarding.ftl"],
+          false,
+          undefined,
+          // Use the system-ish then app then default locale.
+          [...negotiated.requestSystemLocales, "en-US"]
+        );
+
+        // Add the negotiated language name as args.
+        function addMessageArgsAndUseLangPack(obj) {
+          for (const value of Object.values(obj)) {
+            if (value?.string_id) {
+              value.args = {
+                ...value.args,
+                negotiatedLanguage: negotiated.langPackDisplayName,
+              };
+
+              // Expose fluent strings wanting lang pack as raw.
+              if (value.useLangPack) {
+                formatting.push(
+                  l10n.formatValue(value.string_id, value.args).then(raw => {
+                    delete value.string_id;
+                    value.raw = raw;
+                  })
+                );
+              }
+            }
+          }
+        }
+        addMessageArgsAndUseLangPack(content.languageSwitcher);
+        addMessageArgsAndUseLangPack(content);
+        return Promise.all(formatting).then(() =>
+          Cu.cloneInto(content, this.contentWindow)
+        );
+      })
+    );
+  }
+
+  AWSetRequestedLocales(requestSystemLocales) {
+    return this.sendQueryAndCloneForContent(
+      "AWPage:SET_REQUESTED_LOCALES",
+      requestSystemLocales
+    );
+  }
+
+  AWNegotiateLangPackForLanguageMismatch(appAndSystemLocaleInfo) {
+    return this.sendQueryAndCloneForContent(
+      "AWPage:NEGOTIATE_LANGPACK",
+      appAndSystemLocaleInfo
+    );
+  }
+
+  AWSendToDeviceEmailsSupported() {
+    return this.wrapPromise(
+      this.sendQuery("AWPage:SEND_TO_DEVICE_EMAILS_SUPPORTED")
+    );
+  }
+
+  AWNewScreen(screenId) {
+    return this.wrapPromise(this.sendQuery("AWPage:NEW_SCREEN", screenId));
+  }
+
+  /**
+   * @param {{type: string, detail?: any}} event
+   * @override
+   */
+  handleEvent(event) {
+    lazy.log.debug(`Received page event ${event.type}`);
+  }
+}
diff --git a/browser/components/newtab/aboutwelcome/AboutWelcomeParent.jsm b/browser/components/newtab/aboutwelcome/AboutWelcomeParent.jsm
new file mode 100644
index 0000000000..f700eda5b9
--- /dev/null
+++ b/browser/components/newtab/aboutwelcome/AboutWelcomeParent.jsm
@@ -0,0 +1,348 @@
+/* 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/. */
+
+"use strict";
+
+const EXPORTED_SYMBOLS = ["AboutWelcomeParent"];
+
+const { XPCOMUtils } = ChromeUtils.importESModule(
+  "resource://gre/modules/XPCOMUtils.sys.mjs"
+);
+
+const lazy = {};
+
+ChromeUtils.defineESModuleGetters(lazy, {
+  BrowserUtils: "resource://gre/modules/BrowserUtils.sys.mjs",
+  BuiltInThemes: "resource:///modules/BuiltInThemes.sys.mjs",
+  PromiseUtils: "resource://gre/modules/PromiseUtils.sys.mjs",
+  Region: "resource://gre/modules/Region.sys.mjs",
+});
+
+XPCOMUtils.defineLazyModuleGetters(lazy, {
+  AddonManager: "resource://gre/modules/AddonManager.jsm",
+  FxAccounts: "resource://gre/modules/FxAccounts.jsm",
+  MigrationUtils: "resource:///modules/MigrationUtils.jsm",
+  SpecialMessageActions:
+    "resource://messaging-system/lib/SpecialMessageActions.jsm",
+  AboutWelcomeTelemetry:
+    "resource://activity-stream/aboutwelcome/lib/AboutWelcomeTelemetry.jsm",
+  AboutWelcomeDefaults:
+    "resource://activity-stream/aboutwelcome/lib/AboutWelcomeDefaults.jsm",
+  ShellService: "resource:///modules/ShellService.jsm",
+  LangPackMatcher: "resource://gre/modules/LangPackMatcher.jsm",
+});
+
+XPCOMUtils.defineLazyGetter(lazy, "log", () => {
+  const { Logger } = ChromeUtils.import(
+    "resource://messaging-system/lib/Logger.jsm"
+  );
+  return new Logger("AboutWelcomeParent");
+});
+
+XPCOMUtils.defineLazyGetter(
+  lazy,
+  "Telemetry",
+  () => new lazy.AboutWelcomeTelemetry()
+);
+
+const DID_SEE_ABOUT_WELCOME_PREF = "trailhead.firstrun.didSeeAboutWelcome";
+const AWTerminate = {
+  WINDOW_CLOSED: "welcome-window-closed",
+  TAB_CLOSED: "welcome-tab-closed",
+  APP_SHUT_DOWN: "app-shut-down",
+  ADDRESS_BAR_NAVIGATED: "address-bar-navigated",
+};
+const LIGHT_WEIGHT_THEMES = {
+  AUTOMATIC: "default-theme@mozilla.org",
+  DARK: "firefox-compact-dark@mozilla.org",
+  LIGHT: "firefox-compact-light@mozilla.org",
+  ALPENGLOW: "firefox-alpenglow@mozilla.org",
+  "PLAYMAKER-SOFT": "playmaker-soft-colorway@mozilla.org",
+  "PLAYMAKER-BALANCED": "playmaker-balanced-colorway@mozilla.org",
+  "PLAYMAKER-BOLD": "playmaker-bold-colorway@mozilla.org",
+  "EXPRESSIONIST-SOFT": "expressionist-soft-colorway@mozilla.org",
+  "EXPRESSIONIST-BALANCED": "expressionist-balanced-colorway@mozilla.org",
+  "EXPRESSIONIST-BOLD": "expressionist-bold-colorway@mozilla.org",
+  "VISIONARY-SOFT": "visionary-soft-colorway@mozilla.org",
+  "VISIONARY-BALANCED": "visionary-balanced-colorway@mozilla.org",
+  "VISIONARY-BOLD": "visionary-bold-colorway@mozilla.org",
+  "ACTIVIST-SOFT": "activist-soft-colorway@mozilla.org",
+  "ACTIVIST-BALANCED": "activist-balanced-colorway@mozilla.org",
+  "ACTIVIST-BOLD": "activist-bold-colorway@mozilla.org",
+  "DREAMER-SOFT": "dreamer-soft-colorway@mozilla.org",
+  "DREAMER-BALANCED": "dreamer-balanced-colorway@mozilla.org",
+  "DREAMER-BOLD": "dreamer-bold-colorway@mozilla.org",
+  "INNOVATOR-SOFT": "innovator-soft-colorway@mozilla.org",
+  "INNOVATOR-BALANCED": "innovator-balanced-colorway@mozilla.org",
+  "INNOVATOR-BOLD": "innovator-bold-colorway@mozilla.org",
+};
+
+async function getImportableSites() {
+  const sites = [];
+
+  // Just handle these chromium-based browsers for now
+  for (const browserId of ["chrome", "chromium-edge", "chromium"]) {
+    // Skip if there's no profile data.
+    const migrator = await lazy.MigrationUtils.getMigrator(browserId);
+    if (!migrator) {
+      continue;
+    }
+
+    // Check each profile for top sites
+    const dataPath = await migrator.wrappedJSObject._getChromeUserDataPathIfExists();
+    for (const profile of await migrator.getSourceProfiles()) {
+      let path = PathUtils.join(dataPath, profile.id, "Top Sites");
+      // Skip if top sites data is missing
+      if (!(await IOUtils.exists(path))) {
+        console.error(`Missing file at ${path}`);
+        continue;
+      }
+
+      try {
+        for (const row of await lazy.MigrationUtils.getRowsFromDBWithoutLocks(
+          path,
+          `Importable ${browserId} top sites`,
+          `SELECT url
+           FROM top_sites
+           ORDER BY url_rank`
+        )) {
+          sites.push(row.getString(0));
+        }
+      } catch (ex) {
+        console.error(
+          `Failed to get importable top sites from ${browserId} ${ex}`
+        );
+      }
+    }
+  }
+  return sites;
+}
+
+class AboutWelcomeObserver {
+  constructor() {
+    Services.obs.addObserver(this, "quit-application");
+
+    this.win = Services.focus.activeWindow;
+    if (!this.win) {
+      return;
+    }
+
+    this.terminateReason = AWTerminate.ADDRESS_BAR_NAVIGATED;
+
+    this.onWindowClose = () => {
+      this.terminateReason = AWTerminate.WINDOW_CLOSED;
+    };
+
+    this.onTabClose = () => {
+      this.terminateReason = AWTerminate.TAB_CLOSED;
+    };
+
+    this.win.addEventListener("TabClose", this.onTabClose, { once: true });
+    this.win.addEventListener("unload", this.onWindowClose, { once: true });
+  }
+
+  observe(aSubject, aTopic, aData) {
+    switch (aTopic) {
+      case "quit-application":
+        this.terminateReason = AWTerminate.APP_SHUT_DOWN;
+        break;
+    }
+  }
+
+  // Added for testing
+  get AWTerminate() {
+    return AWTerminate;
+  }
+
+  stop() {
+    lazy.log.debug(`Terminate reason is ${this.terminateReason}`);
+    Services.obs.removeObserver(this, "quit-application");
+    if (!this.win) {
+      return;
+    }
+    this.win.removeEventListener("TabClose", this.onTabClose);
+    this.win.removeEventListener("unload", this.onWindowClose);
+    this.win = null;
+  }
+}
+
+class RegionHomeObserver {
+  observe(aSubject, aTopic, aData) {
+    switch (aTopic) {
+      case lazy.Region.REGION_TOPIC:
+        Services.obs.removeObserver(this, lazy.Region.REGION_TOPIC);
+        this.regionHomeDeferred.resolve(lazy.Region.home);
+        this.regionHomeDeferred = null;
+        break;
+    }
+  }
+
+  promiseRegionHome() {
+    // Add observer and create promise that should be resolved
+    // with region or rejected inside didDestroy if user exits
+    // before region is available
+    if (!this.regionHomeDeferred) {
+      Services.obs.addObserver(this, lazy.Region.REGION_TOPIC);
+      this.regionHomeDeferred = lazy.PromiseUtils.defer();
+    }
+    return this.regionHomeDeferred.promise;
+  }
+
+  stop() {
+    if (this.regionHomeDeferred) {
+      Services.obs.removeObserver(this, lazy.Region.REGION_TOPIC);
+      // Reject unresolved deferred promise on exit
+      this.regionHomeDeferred.reject(
+        new Error("Unresolved region home promise")
+      );
+      this.regionHomeDeferred = null;
+    }
+  }
+}
+
+class AboutWelcomeParent extends JSWindowActorParent {
+  constructor() {
+    super();
+    this.AboutWelcomeObserver = new AboutWelcomeObserver(this);
+  }
+
+  // Static methods that calls into ShellService to check
+  // if Firefox is pinned or already default
+  static doesAppNeedPin() {
+    return lazy.ShellService.doesAppNeedPin();
+  }
+
+  static isDefaultBrowser() {
+    return lazy.ShellService.isDefaultBrowser();
+  }
+
+  didDestroy() {
+    if (this.AboutWelcomeObserver) {
+      this.AboutWelcomeObserver.stop();
+    }
+    this.RegionHomeObserver?.stop();
+
+    lazy.Telemetry.sendTelemetry({
+      event: "SESSION_END",
+      event_context: {
+        reason: this.AboutWelcomeObserver.terminateReason,
+        page: "about:welcome",
+      },
+      message_id: this.AWMessageId,
+    });
+  }
+
+  /**
+   * Handle messages from AboutWelcomeChild.jsm
+   *
+   * @param {string} type
+   * @param {any=} data
+   * @param {Browser} the xul:browser rendering the page
+   */
+  async onContentMessage(type, data, browser) {
+    lazy.log.debug(`Received content event: ${type}`);
+    switch (type) {
+      case "AWPage:SET_WELCOME_MESSAGE_SEEN":
+        this.AWMessageId = data;
+        try {
+          Services.prefs.setBoolPref(DID_SEE_ABOUT_WELCOME_PREF, true);
+        } catch (e) {
+          lazy.log.debug(`Fails to set ${DID_SEE_ABOUT_WELCOME_PREF}.`);
+        }
+        break;
+      case "AWPage:SPECIAL_ACTION":
+        lazy.SpecialMessageActions.handleAction(data, browser);
+        break;
+      case "AWPage:FXA_METRICS_FLOW_URI":
+        return lazy.FxAccounts.config.promiseMetricsFlowURI("aboutwelcome");
+      case "AWPage:IMPORTABLE_SITES":
+        return getImportableSites();
+      case "AWPage:TELEMETRY_EVENT":
+        lazy.Telemetry.sendTelemetry(data);
+        break;
+      case "AWPage:GET_ATTRIBUTION_DATA":
+        let attributionData = await lazy.AboutWelcomeDefaults.getAttributionContent();
+        return attributionData;
+      case "AWPage:SELECT_THEME":
+        await lazy.BuiltInThemes.ensureBuiltInThemes();
+        return lazy.AddonManager.getAddonByID(
+          LIGHT_WEIGHT_THEMES[data]
+        ).then(addon => addon.enable());
+      case "AWPage:GET_SELECTED_THEME":
+        let themes = await lazy.AddonManager.getAddonsByTypes(["theme"]);
+        let activeTheme = themes.find(addon => addon.isActive);
+        // Store the current theme ID so user can restore their previous theme.
+        if (activeTheme?.id) {
+          LIGHT_WEIGHT_THEMES.AUTOMATIC = activeTheme.id;
+        }
+        // convert this to the short form name that the front end code
+        // expects
+        let themeShortName = Object.keys(LIGHT_WEIGHT_THEMES).find(
+          key => LIGHT_WEIGHT_THEMES[key] === activeTheme?.id
+        );
+        return themeShortName?.toLowerCase();
+      case "AWPage:GET_REGION":
+        if (lazy.Region.home !== null) {
+          return lazy.Region.home;
+        }
+        if (!this.RegionHomeObserver) {
+          this.RegionHomeObserver = new RegionHomeObserver(this);
+        }
+        return this.RegionHomeObserver.promiseRegionHome();
+      case "AWPage:DOES_APP_NEED_PIN":
+        return AboutWelcomeParent.doesAppNeedPin();
+      case "AWPage:NEED_DEFAULT":
+        // Only need to set default if we're supposed to check and not default.
+        return (
+          Services.prefs.getBoolPref("browser.shell.checkDefaultBrowser") &&
+          !AboutWelcomeParent.isDefaultBrowser()
+        );
+      case "AWPage:WAIT_FOR_MIGRATION_CLOSE":
+        return new Promise(resolve =>
+          Services.ww.registerNotification(function observer(subject, topic) {
+            if (
+              topic === "domwindowclosed" &&
+              subject.document.documentURI ===
+                "chrome://browser/content/migration/migration.xhtml"
+            ) {
+              Services.ww.unregisterNotification(observer);
+              resolve();
+            }
+          })
+        );
+      case "AWPage:GET_APP_AND_SYSTEM_LOCALE_INFO":
+        return lazy.LangPackMatcher.getAppAndSystemLocaleInfo();
+      case "AWPage:NEGOTIATE_LANGPACK":
+        return lazy.LangPackMatcher.negotiateLangPackForLanguageMismatch(data);
+      case "AWPage:ENSURE_LANG_PACK_INSTALLED":
+        return lazy.LangPackMatcher.ensureLangPackInstalled(data);
+      case "AWPage:SET_REQUESTED_LOCALES":
+        return lazy.LangPackMatcher.setRequestedAppLocales(data);
+      case "AWPage:SEND_TO_DEVICE_EMAILS_SUPPORTED": {
+        return lazy.BrowserUtils.sendToDeviceEmailsSupported();
+      }
+      default:
+        lazy.log.debug(`Unexpected event ${type} was not handled.`);
+    }
+
+    return undefined;
+  }
+
+  /**
+   * @param {{name: string, data?: any}} message
+   * @override
+   */
+  receiveMessage(message) {
+    const { name, data } = message;
+    let browser;
+
+    if (this.manager.rootFrameLoader) {
+      browser = this.manager.rootFrameLoader.ownerElement;
+      return this.onContentMessage(name, data, browser);
+    }
+
+    lazy.log.warn(`Not handling ${name} because the browser doesn't exist.`);
+    return null;
+  }
+}
diff --git a/browser/components/newtab/aboutwelcome/content/aboutwelcome.bundle.js b/browser/components/newtab/aboutwelcome/content/aboutwelcome.bundle.js
new file mode 100644
index 0000000000..36aa2615f1
--- /dev/null
+++ b/browser/components/newtab/aboutwelcome/content/aboutwelcome.bundle.js
@@ -0,0 +1,2223 @@
+/*!
+ * 
+ * NOTE: This file is generated by webpack from aboutwelcome.jsx
+ * using the npm bundle task.
+ *
+ */
+/******/ (() => { // webpackBootstrap
+/******/ 	"use strict";
+/******/ 	var __webpack_modules__ = ([
+/* 0 */,
+/* 1 */
+/***/ ((module) => {
+
+module.exports = React;
+
+/***/ }),
+/* 2 */
+/***/ ((module) => {
+
+module.exports = ReactDOM;
+
+/***/ }),
+/* 3 */
+/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
+
+__webpack_require__.r(__webpack_exports__);
+/* harmony export */ __webpack_require__.d(__webpack_exports__, {
+/* harmony export */   "AboutWelcomeUtils": () => (/* binding */ AboutWelcomeUtils),
+/* harmony export */   "DEFAULT_RTAMO_CONTENT": () => (/* binding */ DEFAULT_RTAMO_CONTENT)
+/* harmony export */ });
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+// If we're in a subdialog, then this is a spotlight modal.
+// Otherwise, this is about:welcome or a Feature Callout
+// in another "about" page and we should return the current page.
+const page = document.querySelector(":root[dialogroot=true]") ? "spotlight" : document.location.href;
+const AboutWelcomeUtils = {
+  handleUserAction(action) {
+    window.AWSendToParent("SPECIAL_ACTION", action);
+  },
+
+  sendImpressionTelemetry(messageId, context) {
+    var _window$AWSendEventTe, _window;
+
+    (_window$AWSendEventTe = (_window = window).AWSendEventTelemetry) === null || _window$AWSendEventTe === void 0 ? void 0 : _window$AWSendEventTe.call(_window, {
+      event: "IMPRESSION",
+      event_context: { ...context,
+        page
+      },
+      message_id: messageId
+    });
+  },
+
+  sendActionTelemetry(messageId, elementId, eventName = "CLICK_BUTTON") {
+    var _window$AWSendEventTe2, _window2;
+
+    const ping = {
+      event: eventName,
+      event_context: {
+        source: elementId,
+        page
+      },
+      message_id: messageId
+    };
+    (_window$AWSendEventTe2 = (_window2 = window).AWSendEventTelemetry) === null || _window$AWSendEventTe2 === void 0 ? void 0 : _window$AWSendEventTe2.call(_window2, ping);
+  },
+
+  sendDismissTelemetry(messageId, elementId) {
+    // Don't send DISMISS telemetry in spotlight modals since they already send
+    // their own equivalent telemetry.
+    if (page !== "spotlight") {
+      this.sendActionTelemetry(messageId, elementId, "DISMISS");
+    }
+  },
+
+  async fetchFlowParams(metricsFlowUri) {
+    let flowParams;
+
+    try {
+      const response = await fetch(metricsFlowUri, {
+        credentials: "omit"
+      });
+
+      if (response.status === 200) {
+        const {
+          deviceId,
+          flowId,
+          flowBeginTime
+        } = await response.json();
+        flowParams = {
+          deviceId,
+          flowId,
+          flowBeginTime
+        };
+      } else {
+        console.error("Non-200 response", response);
+      }
+    } catch (e) {
+      flowParams = null;
+    }
+
+    return flowParams;
+  },
+
+  sendEvent(type, detail) {
+    document.dispatchEvent(new CustomEvent(`AWPage:${type}`, {
+      bubbles: true,
+      detail
+    }));
+  }
+
+};
+const DEFAULT_RTAMO_CONTENT = {
+  template: "return_to_amo",
+  utm_term: "rtamo",
+  content: {
+    position: "split",
+    title: {
+      string_id: "mr1-return-to-amo-subtitle"
+    },
+    has_noodles: false,
+    subtitle: {
+      string_id: "mr1-return-to-amo-addon-title"
+    },
+    backdrop: "var(--mr-welcome-background-color) var(--mr-welcome-background-gradient)",
+    background: "url('chrome://activity-stream/content/data/content/assets/mr-rtamo-background-image.svg') no-repeat center",
+    progress_bar: true,
+    primary_button: {
+      label: {
+        string_id: "mr1-return-to-amo-add-extension-label"
+      },
+      source_id: "ADD_EXTENSION_BUTTON",
+      action: {
+        type: "INSTALL_ADDON_FROM_URL",
+        data: {
+          url: null,
+          telemetrySource: "rtamo"
+        }
+      }
+    },
+    secondary_button: {
+      label: {
+        string_id: "onboarding-not-now-button-label"
+      },
+      source_id: "RTAMO_START_BROWSING_BUTTON",
+      action: {
+        type: "OPEN_AWESOME_BAR"
+      }
+    },
+    secondary_button_top: {
+      label: {
+        string_id: "mr1-onboarding-sign-in-button-label"
+      },
+      source_id: "RTAMO_FXA_SIGNIN_BUTTON",
+      action: {
+        data: {
+          entrypoint: "activity-stream-firstrun",
+          where: "tab"
+        },
+        type: "SHOW_FIREFOX_ACCOUNTS",
+        addFlowParams: true
+      }
+    }
+  }
+};
+
+/***/ }),
+/* 4 */
+/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
+
+__webpack_require__.r(__webpack_exports__);
+/* harmony export */ __webpack_require__.d(__webpack_exports__, {
+/* harmony export */   "MultiStageAboutWelcome": () => (/* binding */ MultiStageAboutWelcome),
+/* harmony export */   "SecondaryCTA": () => (/* binding */ SecondaryCTA),
+/* harmony export */   "StepsIndicator": () => (/* binding */ StepsIndicator),
+/* harmony export */   "ProgressBar": () => (/* binding */ ProgressBar),
+/* harmony export */   "WelcomeScreen": () => (/* binding */ WelcomeScreen)
+/* harmony export */ });
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(1);
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony import */ var _MSLocalized__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(5);
+/* harmony import */ var _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(3);
+/* harmony import */ var _MultiStageProtonScreen__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(6);
+/* harmony import */ var _LanguageSwitcher__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(11);
+/* harmony import */ var _asrouter_templates_FirstRun_addUtmParams__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(16);
+/* 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/. */
+
+
+
+
+
+ // Amount of milliseconds for all transitions to complete (including delays).
+
+const TRANSITION_OUT_TIME = 1000;
+const MultiStageAboutWelcome = props => {
+  let {
+    screens
+  } = props;
+  const [index, setScreenIndex] = (0,react__WEBPACK_IMPORTED_MODULE_0__.useState)(props.startScreen);
+  const [previousOrder, setPreviousOrder] = (0,react__WEBPACK_IMPORTED_MODULE_0__.useState)(props.startScreen - 1);
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(() => {
+    const screenInitials = screens.map(({
+      id
+    }) => {
+      var _id$split$;
+
+      return id === null || id === void 0 ? void 0 : (_id$split$ = id.split("_")[1]) === null || _id$split$ === void 0 ? void 0 : _id$split$[0];
+    }).join(""); // Send impression ping when respective screen first renders
+
+    screens.forEach((screen, order) => {
+      if (index === order) {
+        _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_2__.AboutWelcomeUtils.sendImpressionTelemetry(`${props.message_id}_${order}_${screen.id}_${screenInitials}`);
+      }
+    }); // Remember that a new screen has loaded for browser navigation
+
+    if (props.updateHistory && index > window.history.state) {
+      window.history.pushState(index, "");
+    } // Remember the previous screen index so we can animate the transition
+
+
+    setPreviousOrder(index);
+  }, [index]);
+  const [flowParams, setFlowParams] = (0,react__WEBPACK_IMPORTED_MODULE_0__.useState)(null);
+  const {
+    metricsFlowUri
+  } = props;
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(() => {
+    (async () => {
+      if (metricsFlowUri) {
+        setFlowParams(await _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_2__.AboutWelcomeUtils.fetchFlowParams(metricsFlowUri));
+      }
+    })();
+  }, [metricsFlowUri]); // Allow "in" style to render to actually transition towards regular state,
+  // which also makes using browser back/forward navigation skip transitions.
+
+  const [transition, setTransition] = (0,react__WEBPACK_IMPORTED_MODULE_0__.useState)(props.transitions ? "in" : "");
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(() => {
+    if (transition === "in") {
+      requestAnimationFrame(() => requestAnimationFrame(() => setTransition("")));
+    }
+  }, [transition]); // Transition to next screen, opening about:home on last screen button CTA
+
+  const handleTransition = () => {
+    // Only handle transitioning out from a screen once.
+    if (transition === "out") {
+      return;
+    } // Start transitioning things "out" immediately when moving forwards.
+
+
+    setTransition(props.transitions ? "out" : ""); // Actually move forwards after all transitions finish.
+
+    setTimeout(() => {
+      if (index < screens.length - 1) {
+        setTransition(props.transitions ? "in" : "");
+        setScreenIndex(prevState => prevState + 1);
+      } else {
+        window.AWFinish();
+      }
+    }, props.transitions ? TRANSITION_OUT_TIME : 0);
+  };
+
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(() => {
+    if (props.updateHistory) {
+      // Switch to the screen tracked in state (null for initial state)
+      // or last screen index if a user navigates by pressing back
+      // button from about:home
+      const handler = ({
+        state
+      }) => {
+        if (transition === "out") {
+          return;
+        }
+
+        setTransition(props.transitions ? "out" : "");
+        setTimeout(() => {
+          setTransition(props.transitions ? "in" : "");
+          setScreenIndex(Math.min(state, screens.length - 1));
+        }, props.transitions ? TRANSITION_OUT_TIME : 0);
+      }; // Handle page load, e.g., going back to about:welcome from about:home
+
+
+      const {
+        state
+      } = window.history;
+
+      if (state) {
+        setScreenIndex(Math.min(state, screens.length - 1));
+        setPreviousOrder(Math.min(state, screens.length - 1));
+      } // Watch for browser back/forward button navigation events
+
+
+      window.addEventListener("popstate", handler);
+      return () => window.removeEventListener("popstate", handler);
+    }
+
+    return false;
+  }, []); // Update top sites with default sites by region when region is available
+
+  const [region, setRegion] = (0,react__WEBPACK_IMPORTED_MODULE_0__.useState)(null);
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(() => {
+    (async () => {
+      setRegion(await window.AWGetRegion());
+    })();
+  }, []); // Save the active multi select state containing array of checkbox ids
+  // used in handleAction to update MULTI_ACTION data
+
+  const [activeMultiSelect, setActiveMultiSelect] = (0,react__WEBPACK_IMPORTED_MODULE_0__.useState)(null); // Get the active theme so the rendering code can make it selected
+  // by default.
+
+  const [activeTheme, setActiveTheme] = (0,react__WEBPACK_IMPORTED_MODULE_0__.useState)(null);
+  const [initialTheme, setInitialTheme] = (0,react__WEBPACK_IMPORTED_MODULE_0__.useState)(null);
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(() => {
+    (async () => {
+      let theme = await window.AWGetSelectedTheme();
+      setInitialTheme(theme);
+      setActiveTheme(theme);
+    })();
+  }, []);
+  const useImportable = props.message_id.includes("IMPORTABLE"); // Track whether we have already sent the importable sites impression telemetry
+
+  const importTelemetrySent = (0,react__WEBPACK_IMPORTED_MODULE_0__.useRef)(false);
+  const [topSites, setTopSites] = (0,react__WEBPACK_IMPORTED_MODULE_0__.useState)([]);
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(() => {
+    (async () => {
+      var _window$AWGetDefaultS, _window, _window$AWGetImportab, _window2;
+
+      let DEFAULT_SITES = await ((_window$AWGetDefaultS = (_window = window).AWGetDefaultSites) === null || _window$AWGetDefaultS === void 0 ? void 0 : _window$AWGetDefaultS.call(_window));
+      const importable = JSON.parse((await ((_window$AWGetImportab = (_window2 = window).AWGetImportableSites) === null || _window$AWGetImportab === void 0 ? void 0 : _window$AWGetImportab.call(_window2))) || "[]");
+      const showImportable = useImportable && importable.length >= 5;
+
+      if (!importTelemetrySent.current) {
+        _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_2__.AboutWelcomeUtils.sendImpressionTelemetry(`${props.message_id}_SITES`, {
+          display: showImportable ? "importable" : "static",
+          importable: importable.length
+        });
+        importTelemetrySent.current = true;
+      }
+
+      setTopSites(showImportable ? {
+        data: importable,
+        showImportable
+      } : {
+        data: DEFAULT_SITES,
+        showImportable
+      });
+    })();
+  }, [useImportable, region]);
+  const centeredScreens = props.screens.filter(s => s.content.position !== "corner");
+  const {
+    negotiatedLanguage,
+    langPackInstallPhase,
+    languageFilteredScreens
+  } = (0,_LanguageSwitcher__WEBPACK_IMPORTED_MODULE_4__.useLanguageSwitcher)(props.appAndSystemLocaleInfo, screens, index, setScreenIndex);
+  screens = languageFilteredScreens;
+  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement((react__WEBPACK_IMPORTED_MODULE_0___default().Fragment), null, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    className: `outer-wrapper onboardingContainer proton transition-${transition}`,
+    style: props.backdrop ? {
+      background: props.backdrop
+    } : {}
+  }, screens.map((screen, order) => {
+    const isFirstCenteredScreen = (!screen.content.position || screen.content.position === "center") && screen === centeredScreens[0];
+    const isLastCenteredScreen = (!screen.content.position || screen.content.position === "center") && screen === centeredScreens[centeredScreens.length - 1];
+    /* If first screen is corner positioned, don't include it in the count for the steps indicator. This assumes corner positioning will only be used on the first screen. */
+
+    const totalNumberOfScreens = screens[0].content.position === "corner" ? screens.length - 1 : screens.length;
+    /* Don't include a starting corner screen when determining step indicator order */
+
+    const stepOrder = screens[0].content.position === "corner" ? order - 1 : order;
+    return index === order ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(WelcomeScreen, {
+      key: screen.id + order,
+      id: screen.id,
+      totalNumberOfScreens: totalNumberOfScreens,
+      isFirstCenteredScreen: isFirstCenteredScreen,
+      isLastCenteredScreen: isLastCenteredScreen,
+      stepOrder: stepOrder,
+      order: order,
+      previousOrder: previousOrder,
+      content: screen.content,
+      navigate: handleTransition,
+      topSites: topSites,
+      messageId: `${props.message_id}_${order}_${screen.id}`,
+      UTMTerm: props.utm_term,
+      flowParams: flowParams,
+      activeTheme: activeTheme,
+      initialTheme: initialTheme,
+      setActiveTheme: setActiveTheme,
+      setInitialTheme: setInitialTheme,
+      activeMultiSelect: activeMultiSelect,
+      setActiveMultiSelect: setActiveMultiSelect,
+      autoAdvance: screen.auto_advance,
+      negotiatedLanguage: negotiatedLanguage,
+      langPackInstallPhase: langPackInstallPhase
+    }) : null;
+  })));
+};
+const SecondaryCTA = props => {
+  var _props$content$second;
+
+  let targetElement = props.position ? `secondary_button_${props.position}` : `secondary_button`;
+  const buttonStyling = (_props$content$second = props.content.secondary_button) !== null && _props$content$second !== void 0 && _props$content$second.has_arrow_icon ? `secondary text-link arrow-icon` : `secondary text-link`;
+  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    className: props.position ? `secondary-cta ${props.position}` : "secondary-cta"
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: props.content[targetElement].text
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("span", null)), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: props.content[targetElement].label
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("button", {
+    className: buttonStyling,
+    value: targetElement,
+    onClick: props.handleAction
+  })));
+};
+const StepsIndicator = props => {
+  let steps = [];
+
+  for (let i = 0; i < props.totalNumberOfScreens; i++) {
+    let className = `${i === props.order ? "current" : ""} ${i < props.order ? "complete" : ""}`;
+    steps.push( /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      key: i,
+      className: `indicator ${className}`,
+      role: "presentation"
+    }));
+  }
+
+  return steps;
+};
+const ProgressBar = ({
+  step,
+  previousStep,
+  totalNumberOfScreens
+}) => {
+  const [progress, setProgress] = react__WEBPACK_IMPORTED_MODULE_0___default().useState(previousStep / totalNumberOfScreens);
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(() => {
+    // We don't need to hook any dependencies because any time the step changes,
+    // the screen's entire DOM tree will be re-rendered.
+    setProgress(step / totalNumberOfScreens);
+  }, []); // eslint-disable-line react-hooks/exhaustive-deps
+
+  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    className: "indicator",
+    role: "presentation",
+    style: {
+      "--progress-bar-progress": `${progress * 100}%`
+    }
+  });
+};
+class WelcomeScreen extends (react__WEBPACK_IMPORTED_MODULE_0___default().PureComponent) {
+  constructor(props) {
+    super(props);
+    this.handleAction = this.handleAction.bind(this);
+  }
+
+  handleOpenURL(action, flowParams, UTMTerm) {
+    let {
+      type,
+      data
+    } = action;
+
+    if (type === "SHOW_FIREFOX_ACCOUNTS") {
+      let params = { ..._asrouter_templates_FirstRun_addUtmParams__WEBPACK_IMPORTED_MODULE_5__.BASE_PARAMS,
+        utm_term: `aboutwelcome-${UTMTerm}-screen`
+      };
+
+      if (action.addFlowParams && flowParams) {
+        params = { ...params,
+          ...flowParams
+        };
+      }
+
+      data = { ...data,
+        extraParams: params
+      };
+    } else if (type === "OPEN_URL") {
+      let url = new URL(data.args);
+      (0,_asrouter_templates_FirstRun_addUtmParams__WEBPACK_IMPORTED_MODULE_5__.addUtmParams)(url, `aboutwelcome-${UTMTerm}-screen`);
+
+      if (action.addFlowParams && flowParams) {
+        url.searchParams.append("device_id", flowParams.deviceId);
+        url.searchParams.append("flow_id", flowParams.flowId);
+        url.searchParams.append("flow_begin_time", flowParams.flowBeginTime);
+      }
+
+      data = { ...data,
+        args: url.toString()
+      };
+    }
+
+    _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_2__.AboutWelcomeUtils.handleUserAction({
+      type,
+      data
+    });
+  }
+
+  async handleAction(event) {
+    let {
+      props
+    } = this;
+    const value = event.currentTarget.value ?? event.currentTarget.getAttribute("value");
+    let targetContent = props.content[value] || props.content.tiles || props.content.languageSwitcher;
+
+    if (!(targetContent && targetContent.action)) {
+      return;
+    } // Send telemetry before waiting on actions
+
+
+    _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_2__.AboutWelcomeUtils.sendActionTelemetry(props.messageId, value, event.name); // Send additional telemetry if a messaging surface like feature callout is
+    // dismissed via the dismiss button. Other causes of dismissal will be
+    // handled separately by the messaging surface's own code.
+
+    if (value === "dismiss_button" && !event.name) {
+      _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_2__.AboutWelcomeUtils.sendDismissTelemetry(props.messageId, value);
+    }
+
+    let {
+      action
+    } = targetContent;
+
+    if (action.collectSelect) {
+      // Populate MULTI_ACTION data actions property with selected checkbox actions from tiles data
+      action.data = {
+        actions: this.props.activeMultiSelect.map(id => {
+          var _props$content, _props$content$tiles, _props$content$tiles$;
+
+          return (_props$content = props.content) === null || _props$content === void 0 ? void 0 : (_props$content$tiles = _props$content.tiles) === null || _props$content$tiles === void 0 ? void 0 : (_props$content$tiles$ = _props$content$tiles.data.find(ckbx => ckbx.id === id)) === null || _props$content$tiles$ === void 0 ? void 0 : _props$content$tiles$.action;
+        })
+      }; // Send telemetry with selected checkbox ids
+
+      _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_2__.AboutWelcomeUtils.sendActionTelemetry(props.messageId, props.activeMultiSelect, "SELECT_CHECKBOX");
+    }
+
+    if (["OPEN_URL", "SHOW_FIREFOX_ACCOUNTS"].includes(action.type)) {
+      this.handleOpenURL(action, props.flowParams, props.UTMTerm);
+    } else if (action.type) {
+      var _action$data;
+
+      _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_2__.AboutWelcomeUtils.handleUserAction(action); // Wait until migration closes to complete the action
+
+      if (action.type === "SHOW_MIGRATION_WIZARD" || action.type === "MULTI_ACTION" && action !== null && action !== void 0 && (_action$data = action.data) !== null && _action$data !== void 0 && _action$data.actions.find(subAction => subAction.type === "SHOW_MIGRATION_WIZARD")) {
+        await window.AWWaitForMigrationClose();
+        _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_2__.AboutWelcomeUtils.sendActionTelemetry(props.messageId, "migrate_close");
+      }
+    } // A special tiles.action.theme value indicates we should use the event's value vs provided value.
+
+
+    if (action.theme) {
+      let themeToUse = action.theme === "<event>" ? event.currentTarget.value : this.props.initialTheme || action.theme;
+      this.props.setActiveTheme(themeToUse);
+      window.AWSelectTheme(themeToUse);
+    } // If the action has persistActiveTheme: true, we set the initial theme to the currently active theme
+    // so that it can be reverted to in the event that the user navigates away from the screen
+
+
+    if (action.persistActiveTheme) {
+      this.props.setInitialTheme(this.props.activeTheme);
+    }
+
+    if (action.navigate) {
+      props.navigate();
+    }
+  }
+
+  render() {
+    return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MultiStageProtonScreen__WEBPACK_IMPORTED_MODULE_3__.MultiStageProtonScreen, {
+      content: this.props.content,
+      id: this.props.id,
+      order: this.props.order,
+      stepOrder: this.props.stepOrder,
+      previousOrder: this.props.previousOrder,
+      activeTheme: this.props.activeTheme,
+      activeMultiSelect: this.props.activeMultiSelect,
+      setActiveMultiSelect: this.props.setActiveMultiSelect,
+      totalNumberOfScreens: this.props.totalNumberOfScreens,
+      appAndSystemLocaleInfo: this.props.appAndSystemLocaleInfo,
+      negotiatedLanguage: this.props.negotiatedLanguage,
+      langPackInstallPhase: this.props.langPackInstallPhase,
+      handleAction: this.handleAction,
+      messageId: this.props.messageId,
+      isFirstCenteredScreen: this.props.isFirstCenteredScreen,
+      isLastCenteredScreen: this.props.isLastCenteredScreen,
+      startsWithCorner: this.props.startsWithCorner,
+      autoAdvance: this.props.autoAdvance
+    });
+  }
+
+}
+
+/***/ }),
+/* 5 */
+/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
+
+__webpack_require__.r(__webpack_exports__);
+/* harmony export */ __webpack_require__.d(__webpack_exports__, {
+/* harmony export */   "Localized": () => (/* binding */ Localized)
+/* harmony export */ });
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(1);
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_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/. */
+
+const CONFIGURABLE_STYLES = ["color", "fontSize", "fontWeight", "letterSpacing", "lineHeight", "marginBlock", "marginInline", "paddingBlock", "paddingInline"];
+const ZAP_SIZE_THRESHOLD = 160;
+/**
+ * Based on the .text prop, localizes an inner element if a string_id
+ * is provided, OR renders plain text, OR hides it if nothing is provided.
+ * Allows configuring of some styles including zap underline and color.
+ *
+ * Examples:
+ *
+ * Localized text
+ * ftl:
+ *  title = Welcome
+ * jsx:
+ *   <Localized text={{string_id: "title"}}><h1 /></Localized>
+ * output:
+ *   <h1 data-l10n-id="title">Welcome</h1>
+ *
+ * Unlocalized text
+ * jsx:
+ *   <Localized text="Welcome"><h1 /></Localized>
+ *   <Localized text={{raw: "Welcome"}}><h1 /></Localized>
+ * output:
+ *   <h1>Welcome</h1>
+ */
+
+const Localized = ({
+  text,
+  children
+}) => {
+  // Dynamically determine the size of the zap style.
+  const zapRef = /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createRef();
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(() => {
+    const {
+      current
+    } = zapRef;
+    if (current) requestAnimationFrame(() => current === null || current === void 0 ? void 0 : current.classList.replace("short", current.getBoundingClientRect().width > ZAP_SIZE_THRESHOLD ? "long" : "short"));
+  }); // Skip rendering of children with no text.
+
+  if (!text) {
+    return null;
+  } // Allow augmenting existing child container properties.
+
+
+  const props = {
+    children: [],
+    className: "",
+    style: {},
+    ...(children === null || children === void 0 ? void 0 : children.props)
+  }; // Support nested Localized by starting with their children.
+
+  const textNodes = Array.isArray(props.children) ? props.children : [props.children]; // Pick desired fluent or raw/plain text to render.
+
+  if (text.string_id) {
+    // Set the key so React knows not to reuse when switching to plain text.
+    props.key = text.string_id;
+    props["data-l10n-id"] = text.string_id;
+    if (text.args) props["data-l10n-args"] = JSON.stringify(text.args);
+  } else if (text.raw) {
+    textNodes.push(text.raw);
+  } else if (typeof text === "string") {
+    textNodes.push(text);
+  } // Add zap style and content in a way that allows fluent to insert too.
+
+
+  if (text.zap) {
+    props.className += " welcomeZap";
+    textNodes.push( /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("span", {
+      className: "short zap",
+      "data-l10n-name": "zap",
+      ref: zapRef
+    }, text.zap));
+  } // Apply certain configurable styles.
+
+
+  CONFIGURABLE_STYLES.forEach(style => {
+    if (text[style] !== undefined) props.style[style] = text[style];
+  });
+  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().cloneElement( // Provide a default container for the text if necessary.
+  children ?? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("span", null), props, // Conditionally pass in as void elements can't accept empty array.
+  textNodes.length ? textNodes : null);
+};
+
+/***/ }),
+/* 6 */
+/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
+
+__webpack_require__.r(__webpack_exports__);
+/* harmony export */ __webpack_require__.d(__webpack_exports__, {
+/* harmony export */   "MultiStageProtonScreen": () => (/* binding */ MultiStageProtonScreen),
+/* harmony export */   "ProtonScreenActionButtons": () => (/* binding */ ProtonScreenActionButtons),
+/* harmony export */   "ProtonScreen": () => (/* binding */ ProtonScreen)
+/* harmony export */ });
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(1);
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony import */ var _MSLocalized__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(5);
+/* harmony import */ var _MRColorways__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(7);
+/* harmony import */ var _MobileDownloads__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(8);
+/* harmony import */ var _MultiSelect__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(9);
+/* harmony import */ var _Themes__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(10);
+/* harmony import */ var _MultiStageAboutWelcome__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(4);
+/* harmony import */ var _LanguageSwitcher__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(11);
+/* harmony import */ var _CTAParagraph__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(12);
+/* harmony import */ var _HeroImage__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(13);
+/* harmony import */ var _OnboardingVideo__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(14);
+/* harmony import */ var _AdditionalCTA__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(15);
+/* 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/. */
+
+
+
+
+
+
+
+
+
+
+
+
+const MultiStageProtonScreen = props => {
+  const {
+    autoAdvance,
+    handleAction,
+    order
+  } = props;
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(() => {
+    if (autoAdvance) {
+      const timer = setTimeout(() => {
+        handleAction({
+          currentTarget: {
+            value: autoAdvance
+          },
+          name: "AUTO_ADVANCE"
+        });
+      }, 20000);
+      return () => clearTimeout(timer);
+    }
+
+    return () => {};
+  }, [autoAdvance, handleAction, order]);
+  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(ProtonScreen, {
+    content: props.content,
+    id: props.id,
+    order: props.order,
+    activeTheme: props.activeTheme,
+    activeMultiSelect: props.activeMultiSelect,
+    setActiveMultiSelect: props.setActiveMultiSelect,
+    totalNumberOfScreens: props.totalNumberOfScreens,
+    handleAction: props.handleAction,
+    isFirstCenteredScreen: props.isFirstCenteredScreen,
+    isLastCenteredScreen: props.isLastCenteredScreen,
+    stepOrder: props.stepOrder,
+    previousOrder: props.previousOrder,
+    autoAdvance: props.autoAdvance,
+    isRtamo: props.isRtamo,
+    addonName: props.addonName,
+    isTheme: props.isTheme,
+    iconURL: props.iconURL,
+    messageId: props.messageId,
+    negotiatedLanguage: props.negotiatedLanguage,
+    langPackInstallPhase: props.langPackInstallPhase
+  });
+};
+const ProtonScreenActionButtons = props => {
+  var _content$checkbox, _content$primary_butt, _content$primary_butt2;
+
+  const {
+    content,
+    addonName
+  } = props;
+  const defaultValue = (_content$checkbox = content.checkbox) === null || _content$checkbox === void 0 ? void 0 : _content$checkbox.defaultValue;
+  const [isChecked, setIsChecked] = (0,react__WEBPACK_IMPORTED_MODULE_0__.useState)(defaultValue || false);
+
+  if (!content.primary_button && !content.secondary_button && !content.additional_button) {
+    return null;
+  }
+
+  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    className: `action-buttons ${content.additional_button ? "additional-cta-container" : ""}`
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: (_content$primary_butt = content.primary_button) === null || _content$primary_butt === void 0 ? void 0 : _content$primary_butt.label
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("button", {
+    className: "primary" // Whether or not the checkbox is checked determines which action
+    // should be handled. By setting value here, we indicate to
+    // this.handleAction() where in the content tree it should take
+    // the action to execute from.
+    ,
+    value: isChecked ? "checkbox" : "primary_button",
+    disabled: ((_content$primary_butt2 = content.primary_button) === null || _content$primary_butt2 === void 0 ? void 0 : _content$primary_butt2.disabled) === true,
+    onClick: props.handleAction,
+    "data-l10n-args": addonName ? JSON.stringify({
+      "addon-name": addonName
+    }) : ""
+  })), content.additional_button ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_AdditionalCTA__WEBPACK_IMPORTED_MODULE_11__.AdditionalCTA, {
+    content: content,
+    handleAction: props.handleAction
+  }) : null, content.checkbox ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    className: "checkbox-container"
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("input", {
+    type: "checkbox",
+    id: "action-checkbox",
+    checked: isChecked,
+    onChange: () => {
+      setIsChecked(!isChecked);
+    }
+  }), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: content.checkbox.label
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("label", {
+    htmlFor: "action-checkbox"
+  }))) : null, content.secondary_button ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MultiStageAboutWelcome__WEBPACK_IMPORTED_MODULE_6__.SecondaryCTA, {
+    content: content,
+    handleAction: props.handleAction
+  }) : null);
+};
+class ProtonScreen extends (react__WEBPACK_IMPORTED_MODULE_0___default().PureComponent) {
+  componentDidMount() {
+    this.mainContentHeader.focus();
+  }
+
+  getScreenClassName(isFirstCenteredScreen, isLastCenteredScreen, includeNoodles, isVideoOnboarding) {
+    const screenClass = `screen-${this.props.order % 2 !== 0 ? 1 : 2}`;
+    if (isVideoOnboarding) return "with-video";
+    return `${isFirstCenteredScreen ? `dialog-initial` : ``} ${isLastCenteredScreen ? `dialog-last` : ``} ${includeNoodles ? `with-noodles` : ``} ${screenClass}`;
+  }
+
+  renderLogo({
+    imageURL = "chrome://branding/content/about-logo.svg",
+    darkModeImageURL,
+    reducedMotionImageURL,
+    darkModeReducedMotionImageURL,
+    alt = "",
+    height
+  }) {
+    return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("picture", {
+      className: "logo-container"
+    }, darkModeReducedMotionImageURL ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("source", {
+      srcSet: darkModeReducedMotionImageURL,
+      media: "(prefers-color-scheme: dark) and (prefers-reduced-motion: reduce)"
+    }) : null, darkModeImageURL ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("source", {
+      srcSet: darkModeImageURL,
+      media: "(prefers-color-scheme: dark)"
+    }) : null, reducedMotionImageURL ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("source", {
+      srcSet: reducedMotionImageURL,
+      media: "(prefers-reduced-motion: reduce)"
+    }) : null, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("img", {
+      className: "brand-logo",
+      style: {
+        height
+      },
+      src: imageURL,
+      alt: alt,
+      role: alt ? null : "presentation"
+    }));
+  }
+
+  renderContentTiles() {
+    const {
+      content
+    } = this.props;
+    return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement((react__WEBPACK_IMPORTED_MODULE_0___default().Fragment), null, content.tiles && content.tiles.type === "colorway" && content.tiles.colorways ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MRColorways__WEBPACK_IMPORTED_MODULE_2__.Colorways, {
+      content: content,
+      activeTheme: this.props.activeTheme,
+      handleAction: this.props.handleAction
+    }) : null, content.tiles && content.tiles.type === "theme" && content.tiles.data ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_Themes__WEBPACK_IMPORTED_MODULE_5__.Themes, {
+      content: content,
+      activeTheme: this.props.activeTheme,
+      handleAction: this.props.handleAction
+    }) : null, content.tiles && content.tiles.type === "mobile_downloads" && content.tiles.data ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MobileDownloads__WEBPACK_IMPORTED_MODULE_3__.MobileDownloads, {
+      data: content.tiles.data,
+      handleAction: this.props.handleAction
+    }) : null, content.tiles && content.tiles.type === "multiselect" && content.tiles.data ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MultiSelect__WEBPACK_IMPORTED_MODULE_4__.MultiSelect, {
+      content: content,
+      activeMultiSelect: this.props.activeMultiSelect,
+      setActiveMultiSelect: this.props.setActiveMultiSelect,
+      handleAction: this.props.handleAction
+    }) : null);
+  }
+
+  renderNoodles() {
+    return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement((react__WEBPACK_IMPORTED_MODULE_0___default().Fragment), null, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      className: "noodle orange-L"
+    }), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      className: "noodle purple-C"
+    }), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      className: "noodle solid-L"
+    }), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      className: "noodle outline-L"
+    }), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      className: "noodle yellow-circle"
+    }));
+  }
+
+  renderLanguageSwitcher() {
+    return this.props.content.languageSwitcher ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_LanguageSwitcher__WEBPACK_IMPORTED_MODULE_7__.LanguageSwitcher, {
+      content: this.props.content,
+      handleAction: this.props.handleAction,
+      negotiatedLanguage: this.props.negotiatedLanguage,
+      langPackInstallPhase: this.props.langPackInstallPhase,
+      messageId: this.props.messageId
+    }) : null;
+  }
+
+  renderDismissButton() {
+    return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("button", {
+      className: "dismiss-button",
+      onClick: this.props.handleAction,
+      value: "dismiss_button",
+      "data-l10n-id": "spotlight-dialog-close-button"
+    });
+  }
+
+  renderStepsIndicator() {
+    const currentStep = (this.props.order ?? 0) + 1;
+    const previousStep = (this.props.previousOrder ?? -1) + 1;
+    const {
+      content,
+      totalNumberOfScreens: total
+    } = this.props;
+    return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      id: "steps",
+      className: `steps${content.progress_bar ? " progress-bar" : ""}`,
+      "data-l10n-id": "onboarding-welcome-steps-indicator-label",
+      "data-l10n-args": JSON.stringify({
+        current: currentStep,
+        total: total ?? 0
+      }),
+      "data-l10n-attrs": "aria-label",
+      role: "progressbar",
+      "aria-valuenow": currentStep,
+      "aria-valuemin": 1,
+      "aria-valuemax": total
+    }, content.progress_bar ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MultiStageAboutWelcome__WEBPACK_IMPORTED_MODULE_6__.ProgressBar, {
+      step: currentStep,
+      previousStep: previousStep,
+      totalNumberOfScreens: total
+    }) : /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MultiStageAboutWelcome__WEBPACK_IMPORTED_MODULE_6__.StepsIndicator, {
+      order: this.props.stepOrder,
+      totalNumberOfScreens: total
+    }));
+  }
+
+  renderSecondarySection(content) {
+    return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      className: "section-secondary",
+      style: content.background ? {
+        background: content.background,
+        "--mr-secondary-background-position-y": content.split_narrow_bkg_position
+      } : {}
+    }, content.image_alt_text ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      className: "sr-only image-alt",
+      role: "img",
+      "data-l10n-id": content.image_alt_text.string_id
+    }) : null, content.hero_image ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_HeroImage__WEBPACK_IMPORTED_MODULE_9__.HeroImage, {
+      url: content.hero_image.url
+    }) : /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement((react__WEBPACK_IMPORTED_MODULE_0___default().Fragment), null, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      className: "message-text"
+    }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      className: "spacer-top"
+    }), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+      text: content.hero_text
+    }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("h1", null)), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      className: "spacer-bottom"
+    })), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+      text: content.help_text
+    }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("span", {
+      className: "attrib-text"
+    }))));
+  }
+
+  render() {
+    var _this$props$appAndSys, _this$props$messageId;
+
+    const {
+      autoAdvance,
+      content,
+      isRtamo,
+      isTheme,
+      isFirstCenteredScreen,
+      isLastCenteredScreen
+    } = this.props;
+    const includeNoodles = content.has_noodles; // The default screen position is "center"
+
+    const isCenterPosition = content.position === "center" || !content.position;
+    const hideStepsIndicator = autoAdvance || (content === null || content === void 0 ? void 0 : content.video_container) || isFirstCenteredScreen && isLastCenteredScreen;
+    const textColorClass = content.text_color ? `${content.text_color}-text` : ""; // Assign proton screen style 'screen-1' or 'screen-2' to centered screens
+    // by checking if screen order is even or odd.
+
+    const screenClassName = isCenterPosition ? this.getScreenClassName(isFirstCenteredScreen, isLastCenteredScreen, includeNoodles, content === null || content === void 0 ? void 0 : content.video_container) : "";
+    return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("main", {
+      className: `screen ${this.props.id || ""} ${screenClassName} ${textColorClass}`,
+      role: "alertdialog",
+      pos: content.position || "center",
+      tabIndex: "-1",
+      "aria-labelledby": "mainContentHeader",
+      ref: input => {
+        this.mainContentHeader = input;
+      }
+    }, isCenterPosition ? null : this.renderSecondarySection(content), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      className: "section-main"
+    }, content.secondary_button_top ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MultiStageAboutWelcome__WEBPACK_IMPORTED_MODULE_6__.SecondaryCTA, {
+      content: content,
+      handleAction: this.props.handleAction,
+      position: "top"
+    }) : null, includeNoodles ? this.renderNoodles() : null, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      className: `main-content ${hideStepsIndicator ? "no-steps" : ""}`,
+      style: content.background && isCenterPosition ? {
+        background: content.background
+      } : {}
+    }, content.dismiss_button ? this.renderDismissButton() : null, content.logo ? this.renderLogo(content.logo) : null, isRtamo ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      className: "rtamo-icon"
+    }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("img", {
+      className: `${isTheme ? "rtamo-theme-icon" : "brand-logo"}`,
+      src: this.props.iconURL,
+      role: "presentation",
+      alt: ""
+    })) : null, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      className: "main-content-inner"
+    }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      className: `welcome-text ${content.title_style || ""}`
+    }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+      text: content.title
+    }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("h1", {
+      id: "mainContentHeader"
+    })), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+      text: content.subtitle
+    }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("h2", {
+      "data-l10n-args": JSON.stringify({
+        "addon-name": this.props.addonName,
+        ...((_this$props$appAndSys = this.props.appAndSystemLocaleInfo) === null || _this$props$appAndSys === void 0 ? void 0 : _this$props$appAndSys.displayNames)
+      }),
+      "aria-flowto": (_this$props$messageId = this.props.messageId) !== null && _this$props$messageId !== void 0 && _this$props$messageId.includes("FEATURE_TOUR") ? "steps" : ""
+    })), content.cta_paragraph ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_CTAParagraph__WEBPACK_IMPORTED_MODULE_8__.CTAParagraph, {
+      content: content.cta_paragraph,
+      handleAction: this.props.handleAction
+    }) : null), content.video_container ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_OnboardingVideo__WEBPACK_IMPORTED_MODULE_10__.OnboardingVideo, {
+      content: content.video_container,
+      handleAction: this.props.handleAction
+    }) : null, this.renderContentTiles(), this.renderLanguageSwitcher(), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(ProtonScreenActionButtons, {
+      content: content,
+      addonName: this.props.addonName,
+      handleAction: this.props.handleAction
+    })), hideStepsIndicator ? null : this.renderStepsIndicator())));
+  }
+
+}
+
+/***/ }),
+/* 7 */
+/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
+
+__webpack_require__.r(__webpack_exports__);
+/* harmony export */ __webpack_require__.d(__webpack_exports__, {
+/* harmony export */   "ColorwayDescription": () => (/* binding */ ColorwayDescription),
+/* harmony export */   "computeColorWay": () => (/* binding */ computeColorWay),
+/* harmony export */   "computeVariationIndex": () => (/* binding */ computeVariationIndex),
+/* harmony export */   "Colorways": () => (/* binding */ Colorways)
+/* harmony export */ });
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(1);
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony import */ var _MSLocalized__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(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/. */
+
+
+const ColorwayDescription = props => {
+  const {
+    colorway
+  } = props;
+
+  if (!colorway) {
+    return null;
+  }
+
+  const {
+    label,
+    description
+  } = colorway;
+  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: description
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    className: "colorway-text",
+    "data-l10n-args": JSON.stringify({
+      colorwayName: label
+    })
+  }));
+}; // Return colorway as "default" for default theme variations Automatic, Light, Dark,
+// Alpenglow theme and legacy colorways which is not supported in Colorway picker.
+// For themes other then default, theme names exist in
+// format colorway-variationId inside LIGHT_WEIGHT_THEMES in AboutWelcomeParent
+
+function computeColorWay(themeName, systemVariations) {
+  return !themeName || themeName === "alpenglow" || systemVariations.includes(themeName) ? "default" : themeName.split("-")[0];
+} // Set variationIndex based off activetheme value e.g. 'light', 'expressionist-soft'
+
+function computeVariationIndex(themeName, systemVariations, variations, defaultVariationIndex) {
+  // Check if themeName is in systemVariations, if yes choose variationIndex by themeName
+  let index = systemVariations.findIndex(theme => theme === themeName);
+
+  if (index >= 0) {
+    return index;
+  } // If themeName is one of the colorways, select variation index from colorways
+
+
+  let variation = themeName === null || themeName === void 0 ? void 0 : themeName.split("-")[1];
+  index = variations.findIndex(element => element === variation);
+
+  if (index >= 0) {
+    return index;
+  }
+
+  return defaultVariationIndex;
+}
+function Colorways(props) {
+  let {
+    colorways,
+    darkVariation,
+    defaultVariationIndex,
+    systemVariations,
+    variations
+  } = props.content.tiles;
+  let hasReverted = false; // Active theme id from JSON e.g. "expressionist"
+
+  const activeId = computeColorWay(props.activeTheme, systemVariations);
+  const [colorwayId, setState] = (0,react__WEBPACK_IMPORTED_MODULE_0__.useState)(activeId);
+  const [variationIndex, setVariationIndex] = (0,react__WEBPACK_IMPORTED_MODULE_0__.useState)(defaultVariationIndex);
+
+  function revertToDefaultTheme() {
+    if (hasReverted) return; // Spoofing an event with current target value of "navigate_away"
+    // helps the handleAction method to read the colorways theme as "revert"
+    // which causes the initial theme to be activated.
+    // The "navigate_away" action is set in content in the colorways screen JSON config.
+    // Any value in the JSON for theme will work, provided it is not `<event>`.
+
+    const event = {
+      currentTarget: {
+        value: "navigate_away"
+      }
+    };
+    props.handleAction(event);
+    hasReverted = true;
+  } // Revert to default theme if the user navigates away from the page or spotlight modal
+  // before clicking on the primary button to officially set theme.
+
+
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(() => {
+    addEventListener("beforeunload", revertToDefaultTheme);
+    addEventListener("pagehide", revertToDefaultTheme);
+    return () => {
+      removeEventListener("beforeunload", revertToDefaultTheme);
+      removeEventListener("pagehide", revertToDefaultTheme);
+    };
+  }); // Update state any time activeTheme changes.
+
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(() => {
+    setState(computeColorWay(props.activeTheme, systemVariations));
+    setVariationIndex(computeVariationIndex(props.activeTheme, systemVariations, variations, defaultVariationIndex)); // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [props.activeTheme]); //select a random colorway
+
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(() => {
+    //We don't want the default theme to be selected
+    const randomIndex = Math.floor(Math.random() * (colorways.length - 1)) + 1;
+    const randomColorwayId = colorways[randomIndex].id; // Change the variation to be the dark variation if configured and dark.
+    // Additional colorway changes will remain dark while system is unchanged.
+
+    if (darkVariation !== undefined && window.matchMedia("(prefers-color-scheme: dark)").matches) {
+      variations[variationIndex] = variations[darkVariation];
+    }
+
+    const value = `${randomColorwayId}-${variations[variationIndex]}`;
+    props.handleAction({
+      currentTarget: {
+        value
+      }
+    }); // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, []);
+  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    className: "tiles-theme-container"
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", null, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("fieldset", {
+    className: "tiles-theme-section"
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: props.content.subtitle
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("legend", {
+    className: "sr-only"
+  })), colorways.map(({
+    id,
+    label,
+    tooltip
+  }) => /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    key: id + label,
+    text: typeof tooltip === "object" ? tooltip : {}
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("label", {
+    className: "theme",
+    title: label,
+    "data-l10n-args": JSON.stringify({
+      colorwayName: label
+    })
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: typeof tooltip === "object" ? tooltip : {}
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("span", {
+    className: "sr-only colorway label",
+    id: `${id}-label`,
+    "data-l10n-args": JSON.stringify({
+      colorwayName: tooltip
+    })
+  })), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: typeof label === "object" ? label : {}
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("input", {
+    type: "radio",
+    "data-colorway": id,
+    name: "theme",
+    value: id === "default" ? systemVariations[variationIndex] : `${id}-${variations[variationIndex]}`,
+    checked: colorwayId === id,
+    className: "sr-only input",
+    onClick: props.handleAction,
+    "data-l10n-args": JSON.stringify({
+      colorwayName: label
+    }),
+    "aria-labelledby": `${id}-label`
+  })), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    className: `icon colorway ${colorwayId === id ? "selected" : ""} ${id}`
+  })))))), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(ColorwayDescription, {
+    colorway: colorways.find(colorway => colorway.id === activeId)
+  }));
+}
+
+/***/ }),
+/* 8 */
+/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
+
+__webpack_require__.r(__webpack_exports__);
+/* harmony export */ __webpack_require__.d(__webpack_exports__, {
+/* harmony export */   "MarketplaceButtons": () => (/* binding */ MarketplaceButtons),
+/* harmony export */   "MobileDownloads": () => (/* binding */ MobileDownloads)
+/* harmony export */ });
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(1);
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony import */ var _MSLocalized__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(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/. */
+
+
+const MarketplaceButtons = props => {
+  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("ul", {
+    className: "mobile-download-buttons"
+  }, props.buttons.includes("ios") ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("li", {
+    className: "ios"
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("button", {
+    "data-l10n-id": "spotlight-ios-marketplace-button",
+    value: "ios",
+    onClick: props.handleAction
+  })) : null, props.buttons.includes("android") ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("li", {
+    className: "android"
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("button", {
+    "data-l10n-id": "spotlight-android-marketplace-button",
+    value: "android",
+    onClick: props.handleAction
+  })) : null);
+};
+const MobileDownloads = props => {
+  const {
+    QR_code: QRCode
+  } = props.data;
+  const showEmailLink = props.data.email && window.AWSendToDeviceEmailsSupported();
+  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    className: "mobile-downloads"
+  }, QRCode ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("img", {
+    "data-l10n-id": QRCode.alt_text.string_id ? QRCode.alt_text.string_id : null,
+    className: "qr-code-image",
+    alt: typeof QRCode.alt_text === "string" ? QRCode.alt_text : "",
+    src: QRCode.image_url
+  }) : null, showEmailLink ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", null, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: props.data.email.link_text
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("button", {
+    className: "email-link",
+    value: "email_link",
+    onClick: props.handleAction
+  }))) : null, props.data.marketplace_buttons ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(MarketplaceButtons, {
+    buttons: props.data.marketplace_buttons,
+    handleAction: props.handleAction
+  }) : null);
+};
+
+/***/ }),
+/* 9 */
+/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
+
+__webpack_require__.r(__webpack_exports__);
+/* harmony export */ __webpack_require__.d(__webpack_exports__, {
+/* harmony export */   "MultiSelect": () => (/* binding */ MultiSelect)
+/* harmony export */ });
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(1);
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony import */ var _MSLocalized__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(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/. */
+
+
+const MultiSelect = props => {
+  let handleChange = event => {
+    if (event.currentTarget.checked) {
+      props.setActiveMultiSelect([...props.activeMultiSelect, event.currentTarget.value]);
+    } else {
+      props.setActiveMultiSelect(props.activeMultiSelect.filter(id => id !== event.currentTarget.value));
+    }
+  };
+
+  let {
+    data
+  } = props.content.tiles; // When screen renders for first time, update state
+  // with checkbox ids that has defaultvalue true
+
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(() => {
+    if (!props.activeMultiSelect) {
+      props.setActiveMultiSelect(data.map(item => item.defaultValue && item.id).filter(item => !!item));
+    } // eslint-disable-next-line react-hooks/exhaustive-deps
+
+  }, []);
+  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    className: "multi-select-container"
+  }, props.content.tiles.data.map(({
+    label,
+    id
+  }) => {
+    var _props$activeMultiSel;
+
+    return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      key: id + label,
+      className: "checkbox-container"
+    }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("input", {
+      type: "checkbox",
+      id: id,
+      value: id,
+      checked: (_props$activeMultiSel = props.activeMultiSelect) === null || _props$activeMultiSel === void 0 ? void 0 : _props$activeMultiSel.includes(id),
+      onChange: handleChange
+    }), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+      text: label
+    }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("label", {
+      htmlFor: id
+    })));
+  }));
+};
+
+/***/ }),
+/* 10 */
+/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
+
+__webpack_require__.r(__webpack_exports__);
+/* harmony export */ __webpack_require__.d(__webpack_exports__, {
+/* harmony export */   "Themes": () => (/* binding */ Themes)
+/* harmony export */ });
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(1);
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony import */ var _MSLocalized__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(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/. */
+
+
+const Themes = props => {
+  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    className: "tiles-theme-container"
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", null, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("fieldset", {
+    className: "tiles-theme-section"
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: props.content.subtitle
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("legend", {
+    className: "sr-only"
+  })), props.content.tiles.data.map(({
+    theme,
+    label,
+    tooltip,
+    description
+  }) => /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    key: theme + label,
+    text: typeof tooltip === "object" ? tooltip : {}
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("label", {
+    className: "theme",
+    title: theme + label
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: typeof description === "object" ? description : {}
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("input", {
+    type: "radio",
+    value: theme,
+    name: "theme",
+    checked: theme === props.activeTheme,
+    className: "sr-only input",
+    onClick: props.handleAction
+  })), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    className: `icon ${theme === props.activeTheme ? " selected" : ""} ${theme}`
+  }), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: label
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    className: "text"
+  }))))))));
+};
+
+/***/ }),
+/* 11 */
+/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
+
+__webpack_require__.r(__webpack_exports__);
+/* harmony export */ __webpack_require__.d(__webpack_exports__, {
+/* harmony export */   "useLanguageSwitcher": () => (/* binding */ useLanguageSwitcher),
+/* harmony export */   "LanguageSwitcher": () => (/* binding */ LanguageSwitcher)
+/* harmony export */ });
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(1);
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony import */ var _MSLocalized__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(5);
+/* harmony import */ var _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(3);
+/* 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/. */
+
+
+
+/**
+ * The language switcher implements a hook that should be placed at a higher level
+ * than the actual language switcher component, as it needs to preemptively fetch
+ * and install langpacks for the user if there is a language mismatch screen.
+ */
+
+function useLanguageSwitcher(appAndSystemLocaleInfo, screens, screenIndex, setScreenIndex) {
+  const languageMismatchScreenIndex = screens.findIndex(({
+    id
+  }) => id === "AW_LANGUAGE_MISMATCH");
+  const screen = screens[languageMismatchScreenIndex]; // Ensure fluent messages have the negotiatedLanguage args set, as they are rendered
+  // before the negotiatedLanguage is known. If the arg isn't present then Firefox will
+  // crash in development mode.
+
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(() => {
+    var _screen$content;
+
+    if (screen !== null && screen !== void 0 && (_screen$content = screen.content) !== null && _screen$content !== void 0 && _screen$content.languageSwitcher) {
+      for (const text of Object.values(screen.content.languageSwitcher)) {
+        if (text !== null && text !== void 0 && text.args && text.args.negotiatedLanguage === undefined) {
+          text.args.negotiatedLanguage = "";
+        }
+      }
+    }
+  }, [screen]); // If there is a mismatch, then Firefox can negotiate a better langpack to offer
+  // the user.
+
+  const [negotiatedLanguage, setNegotiatedLanguage] = (0,react__WEBPACK_IMPORTED_MODULE_0__.useState)(null);
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(function getNegotiatedLanguage() {
+    if (!appAndSystemLocaleInfo) {
+      return;
+    }
+
+    if (appAndSystemLocaleInfo.matchType !== "language-mismatch") {
+      // There is no language mismatch, so there is no need to negotiate a langpack.
+      return;
+    }
+
+    (async () => {
+      const {
+        langPack,
+        langPackDisplayName
+      } = await window.AWNegotiateLangPackForLanguageMismatch(appAndSystemLocaleInfo);
+
+      if (langPack) {
+        setNegotiatedLanguage({
+          langPackDisplayName,
+          appDisplayName: appAndSystemLocaleInfo.displayNames.appLanguage,
+          langPack,
+          requestSystemLocales: [langPack.target_locale, appAndSystemLocaleInfo.appLocaleRaw],
+          originalAppLocales: [appAndSystemLocaleInfo.appLocaleRaw]
+        });
+      } else {
+        setNegotiatedLanguage({
+          langPackDisplayName: null,
+          appDisplayName: null,
+          langPack: null,
+          requestSystemLocales: null
+        });
+      }
+    })();
+  }, [appAndSystemLocaleInfo]);
+  /**
+   * @type {
+   *  "before-installation"
+   *  | "installing"
+   *  | "installed"
+   *  | "installation-error"
+   *  | "none-available"
+   * }
+   */
+
+  const [langPackInstallPhase, setLangPackInstallPhase] = (0,react__WEBPACK_IMPORTED_MODULE_0__.useState)("before-installation");
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(function ensureLangPackInstalled() {
+    if (!negotiatedLanguage) {
+      // There are no negotiated languages to download yet.
+      return;
+    }
+
+    setLangPackInstallPhase("installing");
+    window.AWEnsureLangPackInstalled(negotiatedLanguage, screen === null || screen === void 0 ? void 0 : screen.content).then(content => {
+      // Update screen content with strings that might have changed.
+      screen.content = content;
+      setLangPackInstallPhase("installed");
+    }, error => {
+      console.error(error);
+      setLangPackInstallPhase("installation-error");
+    });
+  }, [negotiatedLanguage]);
+  const [languageFilteredScreens, setLanguageFilteredScreens] = (0,react__WEBPACK_IMPORTED_MODULE_0__.useState)(screens);
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(function filterScreen() {
+    // Remove the language screen if it exists (already removed for no live
+    // reload) and we either don't-need-to or can't switch.
+    if (screen && ((appAndSystemLocaleInfo === null || appAndSystemLocaleInfo === void 0 ? void 0 : appAndSystemLocaleInfo.matchType) !== "language-mismatch" || (negotiatedLanguage === null || negotiatedLanguage === void 0 ? void 0 : negotiatedLanguage.langPack) === null)) {
+      if (screenIndex > languageMismatchScreenIndex) {
+        setScreenIndex(screenIndex - 1);
+      }
+
+      setLanguageFilteredScreens(screens.filter(s => s.id !== "AW_LANGUAGE_MISMATCH"));
+    } else {
+      setLanguageFilteredScreens(screens);
+    }
+  }, [screens, negotiatedLanguage]);
+  return {
+    negotiatedLanguage,
+    langPackInstallPhase,
+    languageFilteredScreens
+  };
+}
+/**
+ * The language switcher is a separate component as it needs to perform some asynchronous
+ * network actions such as retrieving the list of langpacks available, and downloading
+ * a new langpack. On a fast connection, this won't be noticeable, but on slow or unreliable
+ * internet this may fail for a user.
+ */
+
+function LanguageSwitcher(props) {
+  const {
+    content,
+    handleAction,
+    negotiatedLanguage,
+    langPackInstallPhase,
+    messageId
+  } = props;
+  const [isAwaitingLangpack, setIsAwaitingLangpack] = (0,react__WEBPACK_IMPORTED_MODULE_0__.useState)(false); // Determine the status of the langpack installation.
+
+  (0,react__WEBPACK_IMPORTED_MODULE_0__.useEffect)(() => {
+    if (isAwaitingLangpack && langPackInstallPhase !== "installing") {
+      window.AWSetRequestedLocales(negotiatedLanguage.requestSystemLocales);
+      requestAnimationFrame(() => {
+        handleAction( // Simulate the click event.
+        {
+          currentTarget: {
+            value: "download_complete"
+          }
+        });
+      });
+    }
+  }, [isAwaitingLangpack, langPackInstallPhase]);
+  let showWaitingScreen = false;
+  let showPreloadingScreen = false;
+  let showReadyScreen = false;
+
+  if (isAwaitingLangpack && langPackInstallPhase !== "installed") {
+    showWaitingScreen = true;
+  } else if (langPackInstallPhase === "before-installation") {
+    showPreloadingScreen = true;
+  } else {
+    showReadyScreen = true;
+  } // Use {display: "none"} rather than if statements to prevent layout thrashing with
+  // the localized text elements rendering as blank, then filling in the text.
+
+
+  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    className: "action-buttons language-switcher-container"
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    style: {
+      display: showPreloadingScreen ? "block" : "none"
+    }
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("button", {
+    className: "primary",
+    value: "primary_button",
+    disabled: true,
+    type: "button"
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("img", {
+    className: "language-loader",
+    src: "chrome://browser/skin/tabbrowser/tab-connecting.png",
+    alt: ""
+  }), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: content.languageSwitcher.waiting
+  })), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    className: "secondary-cta"
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: content.languageSwitcher.skip
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("button", {
+    value: "decline_waiting",
+    type: "button",
+    className: "secondary text-link arrow-icon",
+    onClick: handleAction
+  })))), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    style: {
+      display: showWaitingScreen ? "block" : "none"
+    }
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("button", {
+    className: "primary",
+    value: "primary_button",
+    disabled: true,
+    type: "button"
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("img", {
+    className: "language-loader",
+    src: "chrome://browser/skin/tabbrowser/tab-connecting.png",
+    alt: ""
+  }), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: content.languageSwitcher.downloading
+  })), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    className: "secondary-cta"
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: content.languageSwitcher.cancel
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("button", {
+    type: "button",
+    className: "secondary text-link",
+    onClick: () => {
+      setIsAwaitingLangpack(false);
+      handleAction({
+        currentTarget: {
+          value: "cancel_waiting"
+        }
+      });
+    }
+  })))), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    style: {
+      display: showReadyScreen ? "block" : "none"
+    }
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", null, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("button", {
+    className: "primary",
+    value: "primary_button",
+    onClick: () => {
+      _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_2__.AboutWelcomeUtils.sendActionTelemetry(messageId, "download_langpack");
+      setIsAwaitingLangpack(true);
+    }
+  }, content.languageSwitcher.switch ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: content.languageSwitcher.switch
+  }) : // This is the localized name from the Intl.DisplayNames API.
+  negotiatedLanguage === null || negotiatedLanguage === void 0 ? void 0 : negotiatedLanguage.langPackDisplayName)), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", null, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("button", {
+    type: "button",
+    className: "primary",
+    value: "decline",
+    onClick: event => {
+      window.AWSetRequestedLocales(negotiatedLanguage.originalAppLocales);
+      handleAction(event);
+    }
+  }, content.languageSwitcher.continue ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: content.languageSwitcher.continue
+  }) : // This is the localized name from the Intl.DisplayNames API.
+  negotiatedLanguage === null || negotiatedLanguage === void 0 ? void 0 : negotiatedLanguage.appDisplayName))));
+}
+
+/***/ }),
+/* 12 */
+/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
+
+__webpack_require__.r(__webpack_exports__);
+/* harmony export */ __webpack_require__.d(__webpack_exports__, {
+/* harmony export */   "CTAParagraph": () => (/* binding */ CTAParagraph)
+/* harmony export */ });
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(1);
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony import */ var _MSLocalized__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(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/. */
+
+
+const CTAParagraph = props => {
+  const {
+    content,
+    handleAction
+  } = props;
+
+  if (!(content !== null && content !== void 0 && content.text)) {
+    return null;
+  }
+
+  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("h2", {
+    className: "cta-paragraph"
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: content.text
+  }, content.text.string_name && typeof handleAction === "function" ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("span", {
+    "data-l10n-id": content.text.string_id,
+    onClick: handleAction,
+    onKeyUp: event => ["Enter", " "].includes(event.key) ? handleAction(event) : null,
+    value: "cta_paragraph",
+    role: "button",
+    tabIndex: "0"
+  }, " ", /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("a", {
+    role: "button",
+    tabIndex: "0",
+    "data-l10n-name": content.text.string_name
+  }, " ")) : null));
+};
+
+/***/ }),
+/* 13 */
+/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
+
+__webpack_require__.r(__webpack_exports__);
+/* harmony export */ __webpack_require__.d(__webpack_exports__, {
+/* harmony export */   "HeroImage": () => (/* binding */ HeroImage)
+/* harmony export */ });
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(1);
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_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/. */
+
+const HeroImage = props => {
+  const {
+    height,
+    url,
+    alt
+  } = props;
+
+  if (!url) {
+    return null;
+  }
+
+  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+    className: "hero-image"
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("img", {
+    style: height ? {
+      height
+    } : null,
+    src: url,
+    alt: alt || "",
+    role: alt ? null : "presentation"
+  }));
+};
+
+/***/ }),
+/* 14 */
+/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
+
+__webpack_require__.r(__webpack_exports__);
+/* harmony export */ __webpack_require__.d(__webpack_exports__, {
+/* harmony export */   "OnboardingVideo": () => (/* binding */ OnboardingVideo)
+/* harmony export */ });
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(1);
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_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/. */
+
+const OnboardingVideo = props => {
+  const vidUrl = props.content.video_url;
+  const autoplay = props.content.autoPlay;
+
+  const handleVideoAction = event => {
+    props.handleAction({
+      currentTarget: {
+        value: event
+      }
+    });
+  };
+
+  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", null, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("video", {
+    // eslint-disable-line jsx-a11y/media-has-caption
+    controls: true,
+    autoPlay: autoplay,
+    src: vidUrl,
+    width: "604px",
+    height: "340px",
+    onPlay: () => handleVideoAction("video_start"),
+    onEnded: () => handleVideoAction("video_end")
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("source", {
+    src: vidUrl
+  })));
+};
+
+/***/ }),
+/* 15 */
+/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
+
+__webpack_require__.r(__webpack_exports__);
+/* harmony export */ __webpack_require__.d(__webpack_exports__, {
+/* harmony export */   "AdditionalCTA": () => (/* binding */ AdditionalCTA)
+/* harmony export */ });
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(1);
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony import */ var _MSLocalized__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(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/. */
+
+
+const AdditionalCTA = ({
+  content,
+  handleAction
+}) => {
+  var _content$additional_b, _content$additional_b4, _content$additional_b5;
+
+  let buttonStyle = "";
+
+  if (!((_content$additional_b = content.additional_button) !== null && _content$additional_b !== void 0 && _content$additional_b.style)) {
+    buttonStyle = "primary";
+  } else {
+    var _content$additional_b2, _content$additional_b3;
+
+    buttonStyle = ((_content$additional_b2 = content.additional_button) === null || _content$additional_b2 === void 0 ? void 0 : _content$additional_b2.style) === "link" ? "cta-link" : (_content$additional_b3 = content.additional_button) === null || _content$additional_b3 === void 0 ? void 0 : _content$additional_b3.style;
+  }
+
+  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MSLocalized__WEBPACK_IMPORTED_MODULE_1__.Localized, {
+    text: (_content$additional_b4 = content.additional_button) === null || _content$additional_b4 === void 0 ? void 0 : _content$additional_b4.label
+  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("button", {
+    className: `${buttonStyle} additional-cta`,
+    onClick: handleAction,
+    value: "additional_button",
+    disabled: ((_content$additional_b5 = content.additional_button) === null || _content$additional_b5 === void 0 ? void 0 : _content$additional_b5.disabled) === true
+  }));
+};
+
+/***/ }),
+/* 16 */
+/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
+
+__webpack_require__.r(__webpack_exports__);
+/* harmony export */ __webpack_require__.d(__webpack_exports__, {
+/* harmony export */   "BASE_PARAMS": () => (/* binding */ BASE_PARAMS),
+/* harmony export */   "addUtmParams": () => (/* binding */ addUtmParams)
+/* harmony export */ });
+/* 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/. */
+
+/**
+ * BASE_PARAMS keys/values can be modified from outside this file
+ */
+const BASE_PARAMS = {
+  utm_source: "activity-stream",
+  utm_campaign: "firstrun",
+  utm_medium: "referral"
+};
+/**
+ * Takes in a url as a string or URL object and returns a URL object with the
+ * utm_* parameters added to it. If a URL object is passed in, the paraemeters
+ * are added to it (the return value can be ignored in that case as it's the
+ * same object).
+ */
+
+function addUtmParams(url, utmTerm) {
+  let returnUrl = url;
+
+  if (typeof returnUrl === "string") {
+    returnUrl = new URL(url);
+  }
+
+  Object.keys(BASE_PARAMS).forEach(key => {
+    returnUrl.searchParams.append(key, BASE_PARAMS[key]);
+  });
+  returnUrl.searchParams.append("utm_term", utmTerm);
+  return returnUrl;
+}
+
+/***/ }),
+/* 17 */
+/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
+
+__webpack_require__.r(__webpack_exports__);
+/* harmony export */ __webpack_require__.d(__webpack_exports__, {
+/* harmony export */   "ReturnToAMO": () => (/* binding */ ReturnToAMO)
+/* harmony export */ });
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(1);
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony import */ var _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(3);
+/* harmony import */ var _MultiStageProtonScreen__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(6);
+/* harmony import */ var _asrouter_templates_FirstRun_addUtmParams__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(16);
+/* 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/. */
+
+
+
+
+class ReturnToAMO extends (react__WEBPACK_IMPORTED_MODULE_0___default().PureComponent) {
+  constructor(props) {
+    super(props);
+    this.fetchFlowParams = this.fetchFlowParams.bind(this);
+    this.handleAction = this.handleAction.bind(this);
+  }
+
+  async fetchFlowParams() {
+    if (this.props.metricsFlowUri) {
+      this.setState({
+        flowParams: await _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_1__.AboutWelcomeUtils.fetchFlowParams(this.props.metricsFlowUri)
+      });
+    }
+  }
+
+  componentDidUpdate() {
+    this.fetchFlowParams();
+  }
+
+  handleAction(event) {
+    const {
+      content,
+      message_id,
+      url,
+      utm_term
+    } = this.props;
+    let {
+      action,
+      source_id
+    } = content[event.currentTarget.value];
+    let {
+      type,
+      data
+    } = action;
+
+    if (type === "INSTALL_ADDON_FROM_URL") {
+      if (!data) {
+        return;
+      } // Set add-on url in action.data.url property from JSON
+
+
+      data = { ...data,
+        url
+      };
+    } else if (type === "SHOW_FIREFOX_ACCOUNTS") {
+      let params = { ..._asrouter_templates_FirstRun_addUtmParams__WEBPACK_IMPORTED_MODULE_3__.BASE_PARAMS,
+        utm_term: `aboutwelcome-${utm_term}-screen`
+      };
+
+      if (action.addFlowParams && this.state.flowParams) {
+        params = { ...params,
+          ...this.state.flowParams
+        };
+      }
+
+      data = { ...data,
+        extraParams: params
+      };
+    }
+
+    _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_1__.AboutWelcomeUtils.handleUserAction({
+      type,
+      data
+    });
+    _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_1__.AboutWelcomeUtils.sendActionTelemetry(message_id, source_id);
+  }
+
+  render() {
+    var _this$props$themeScre;
+
+    const {
+      content,
+      type
+    } = this.props;
+
+    if (!content) {
+      return null;
+    }
+
+    if (content !== null && content !== void 0 && content.primary_button.label) {
+      content.primary_button.label.string_id = type.includes("theme") ? "return-to-amo-add-theme-label" : "mr1-return-to-amo-add-extension-label";
+    } // For experiments, when needed below rendered UI allows settings hard coded strings
+    // directly inside JSON except for ReturnToAMOText which picks add-on name and icon from fluent string
+
+
+    return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
+      className: "outer-wrapper onboardingContainer proton",
+      style: content.backdrop ? {
+        background: content.backdrop
+      } : {}
+    }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_MultiStageProtonScreen__WEBPACK_IMPORTED_MODULE_2__.MultiStageProtonScreen, {
+      content: content,
+      isRtamo: true,
+      isTheme: type.includes("theme"),
+      id: this.props.messageId,
+      order: this.props.order,
+      totalNumberOfScreens: this.props.totalNumberOfScreens,
+      autoAdvance: this.props.auto_advance,
+      iconURL: type.includes("theme") ? (_this$props$themeScre = this.props.themeScreenshots[0]) === null || _this$props$themeScre === void 0 ? void 0 : _this$props$themeScre.url : this.props.iconURL,
+      addonName: this.props.name,
+      handleAction: this.handleAction,
+      addExtension: this.onClickAddExtension
+    }));
+  }
+
+}
+ReturnToAMO.defaultProps = _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_1__.DEFAULT_RTAMO_CONTENT;
+
+/***/ })
+/******/ 	]);
+/************************************************************************/
+/******/ 	// The module cache
+/******/ 	var __webpack_module_cache__ = {};
+/******/ 	
+/******/ 	// The require function
+/******/ 	function __webpack_require__(moduleId) {
+/******/ 		// Check if module is in cache
+/******/ 		var cachedModule = __webpack_module_cache__[moduleId];
+/******/ 		if (cachedModule !== undefined) {
+/******/ 			return cachedModule.exports;
+/******/ 		}
+/******/ 		// Create a new module (and put it into the cache)
+/******/ 		var module = __webpack_module_cache__[moduleId] = {
+/******/ 			// no module.id needed
+/******/ 			// no module.loaded needed
+/******/ 			exports: {}
+/******/ 		};
+/******/ 	
+/******/ 		// Execute the module function
+/******/ 		__webpack_modules__[moduleId](module, module.exports, __webpack_require__);
+/******/ 	
+/******/ 		// Return the exports of the module
+/******/ 		return module.exports;
+/******/ 	}
+/******/ 	
+/************************************************************************/
+/******/ 	/* webpack/runtime/compat get default export */
+/******/ 	(() => {
+/******/ 		// getDefaultExport function for compatibility with non-harmony modules
+/******/ 		__webpack_require__.n = (module) => {
+/******/ 			var getter = module && module.__esModule ?
+/******/ 				() => (module['default']) :
+/******/ 				() => (module);
+/******/ 			__webpack_require__.d(getter, { a: getter });
+/******/ 			return getter;
+/******/ 		};
+/******/ 	})();
+/******/ 	
+/******/ 	/* webpack/runtime/define property getters */
+/******/ 	(() => {
+/******/ 		// define getter functions for harmony exports
+/******/ 		__webpack_require__.d = (exports, definition) => {
+/******/ 			for(var key in definition) {
+/******/ 				if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {
+/******/ 					Object.defineProperty(exports, key, { enumerable: true, get: definition[key] });
+/******/ 				}
+/******/ 			}
+/******/ 		};
+/******/ 	})();
+/******/ 	
+/******/ 	/* webpack/runtime/hasOwnProperty shorthand */
+/******/ 	(() => {
+/******/ 		__webpack_require__.o = (obj, prop) => (Object.prototype.hasOwnProperty.call(obj, prop))
+/******/ 	})();
+/******/ 	
+/******/ 	/* webpack/runtime/make namespace object */
+/******/ 	(() => {
+/******/ 		// define __esModule on exports
+/******/ 		__webpack_require__.r = (exports) => {
+/******/ 			if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
+/******/ 				Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
+/******/ 			}
+/******/ 			Object.defineProperty(exports, '__esModule', { value: true });
+/******/ 		};
+/******/ 	})();
+/******/ 	
+/************************************************************************/
+var __webpack_exports__ = {};
+// This entry need to be wrapped in an IIFE because it need to be isolated against other modules in the chunk.
+(() => {
+__webpack_require__.r(__webpack_exports__);
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(1);
+/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony import */ var react_dom__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(2);
+/* harmony import */ var react_dom__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(react_dom__WEBPACK_IMPORTED_MODULE_1__);
+/* harmony import */ var _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(3);
+/* harmony import */ var _components_MultiStageAboutWelcome__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(4);
+/* harmony import */ var _components_ReturnToAMO__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(17);
+function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
+
+/* 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/. */
+
+
+
+
+
+
+class AboutWelcome extends (react__WEBPACK_IMPORTED_MODULE_0___default().PureComponent) {
+  constructor(props) {
+    super(props);
+    this.state = {
+      metricsFlowUri: null
+    };
+    this.fetchFxAFlowUri = this.fetchFxAFlowUri.bind(this);
+  }
+
+  async fetchFxAFlowUri() {
+    var _window$AWGetFxAMetri, _window;
+
+    this.setState({
+      metricsFlowUri: await ((_window$AWGetFxAMetri = (_window = window).AWGetFxAMetricsFlowURI) === null || _window$AWGetFxAMetri === void 0 ? void 0 : _window$AWGetFxAMetri.call(_window))
+    });
+  }
+
+  componentDidMount() {
+    if (!this.props.skipFxA) {
+      this.fetchFxAFlowUri();
+    } // Record impression with performance data after allowing the page to load
+
+
+    const recordImpression = domState => {
+      const {
+        domComplete,
+        domInteractive
+      } = performance.getEntriesByType("navigation").pop();
+      _lib_aboutwelcome_utils__WEBPACK_IMPORTED_MODULE_2__.AboutWelcomeUtils.sendImpressionTelemetry(this.props.messageId, {
+        domComplete,
+        domInteractive,
+        mountStart: performance.getEntriesByName("mount").pop().startTime,
+        domState,
+        source: this.props.UTMTerm
+      });
+    };
+
+    if (document.readyState === "complete") {
+      // Page might have already triggered a load event because it waited for async data,
+      // e.g., attribution, so the dom load timing could be of a empty content
+      // with domState in telemetry captured as 'complete'
+      recordImpression(document.readyState);
+    } else {
+      window.addEventListener("load", () => recordImpression("load"), {
+        once: true
+      });
+    } // Captures user has seen about:welcome by setting
+    // firstrun.didSeeAboutWelcome pref to true and capturing welcome UI unique messageId
+
+
+    window.AWSendToParent("SET_WELCOME_MESSAGE_SEEN", this.props.messageId);
+  }
+
+  render() {
+    const {
+      props
+    } = this;
+
+    if (props.template === "return_to_amo") {
+      return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_components_ReturnToAMO__WEBPACK_IMPORTED_MODULE_4__.ReturnToAMO, {
+        message_id: props.messageId,
+        type: props.type,
+        name: props.name,
+        url: props.url,
+        iconURL: props.iconURL,
+        themeScreenshots: props.screenshots,
+        metricsFlowUri: this.state.metricsFlowUri
+      });
+    }
+
+    return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_components_MultiStageAboutWelcome__WEBPACK_IMPORTED_MODULE_3__.MultiStageAboutWelcome, {
+      message_id: props.messageId,
+      screens: props.screens,
+      updateHistory: !props.disableHistoryUpdates,
+      metricsFlowUri: this.state.metricsFlowUri,
+      utm_term: props.UTMTerm,
+      transitions: props.transitions,
+      backdrop: props.backdrop,
+      startScreen: props.startScreen || 0,
+      appAndSystemLocaleInfo: props.appAndSystemLocaleInfo
+    });
+  }
+
+} // Computes messageId and UTMTerm info used in telemetry
+
+
+function ComputeTelemetryInfo(welcomeContent, experimentId, branchId) {
+  let messageId = welcomeContent.template === "return_to_amo" ? `RTAMO_DEFAULT_WELCOME_${welcomeContent.type.toUpperCase()}` : "DEFAULT_ID";
+  let UTMTerm = "default";
+
+  if (welcomeContent.id) {
+    messageId = welcomeContent.id.toUpperCase();
+  }
+
+  if (experimentId && branchId) {
+    UTMTerm = `${experimentId}-${branchId}`.toLowerCase();
+  }
+
+  return {
+    messageId,
+    UTMTerm
+  };
+}
+
+async function retrieveRenderContent() {
+  // Feature config includes RTAMO attribution data if exists
+  // else below data in order specified
+  // user prefs
+  // experiment data
+  // defaults
+  let featureConfig = await window.AWGetFeatureConfig();
+  let {
+    messageId,
+    UTMTerm
+  } = ComputeTelemetryInfo(featureConfig, featureConfig.slug, featureConfig.branch && featureConfig.branch.slug);
+  return {
+    featureConfig,
+    messageId,
+    UTMTerm
+  };
+}
+
+async function mount() {
+  let {
+    featureConfig: aboutWelcomeProps,
+    messageId,
+    UTMTerm
+  } = await retrieveRenderContent();
+  react_dom__WEBPACK_IMPORTED_MODULE_1___default().render( /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_0___default().createElement(AboutWelcome, _extends({
+    messageId: messageId,
+    UTMTerm: UTMTerm
+  }, aboutWelcomeProps)), document.getElementById("root"));
+}
+
+performance.mark("mount");
+mount();
+})();
+
+/******/ })()
+;
\ No newline at end of file
diff --git a/browser/components/newtab/aboutwelcome/content/aboutwelcome.css b/browser/components/newtab/aboutwelcome/content/aboutwelcome.css
new file mode 100644
index 0000000000..d2a40fc396
--- /dev/null
+++ b/browser/components/newtab/aboutwelcome/content/aboutwelcome.css
@@ -0,0 +1,1644 @@
+/* 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/. */
+.onboardingContainer.featureCallout {
+  position: absolute;
+  transition: opacity 0.5s ease;
+  z-index: 2147483645;
+}
+.onboardingContainer.featureCallout.hidden {
+  opacity: 0;
+  pointer-events: none;
+}
+.onboardingContainer.featureCallout, .onboardingContainer.featureCallout .outer-wrapper {
+  height: auto;
+}
+.onboardingContainer.featureCallout .screen:dir(rtl) {
+  transform: none;
+}
+.onboardingContainer.featureCallout .screen[pos=callout] {
+  z-index: 2147483646;
+  height: fit-content;
+  min-height: unset;
+  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .logo-container {
+  display: flex;
+  justify-content: center;
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .logo-container .brand-logo {
+  margin: 30px 45px 0;
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .logo-container .brand-logo:dir(rtl) {
+  transform: rotateY(180deg);
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .welcome-text {
+  align-items: baseline;
+  text-align: start;
+  margin-inline: 30px;
+  padding: 20px 0 0;
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .welcome-text h1,
+.onboardingContainer.featureCallout .screen[pos=callout] .welcome-text h2 {
+  font-size: 0.8em;
+  margin: 0;
+  color: ButtonText;
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .welcome-text h1 {
+  font-weight: bold;
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .welcome-text h2 {
+  margin-block: 10px;
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .section-secondary {
+  display: none;
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .section-main {
+  height: fit-content;
+  width: fit-content;
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .section-main .main-content {
+  overflow: hidden;
+  border: 1px solid #CFCFD8;
+  box-shadow: 0 2px 14px rgba(58, 57, 68, 0.2);
+  border-radius: 4px;
+  padding-block: 0 24px;
+  width: 25em;
+  background-color: #FFF;
+}
+@media (prefers-color-scheme: dark) {
+  .onboardingContainer.featureCallout .screen[pos=callout] .section-main .main-content {
+    background-color: #1c1b22;
+  }
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .section-main .main-content .steps {
+  align-self: baseline;
+  margin: -38px 30px -30px;
+  padding-block: 0;
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .section-main .main-content .steps .indicator {
+  border: 4px solid WindowText;
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .section-main .main-content .steps .indicator.current {
+  border-color: LinkText;
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .section-main .main-content .steps .indicator.current, .onboardingContainer.featureCallout .screen[pos=callout] .section-main .main-content .steps.progress-bar .indicator.complete {
+  border-color: LinkText;
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .section-main .main-content .dismiss-button {
+  font-size: 1em;
+  position: absolute;
+  margin-block: 15px 0;
+  margin-inline: 0 15px;
+  z-index: 1;
+  background-color: #FFF;
+}
+@media (prefers-color-scheme: dark) {
+  .onboardingContainer.featureCallout .screen[pos=callout] .section-main .main-content .dismiss-button {
+    background-color: #1c1b22;
+  }
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .action-buttons {
+  margin-block: 0 16px;
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .action-buttons .primary,
+.onboardingContainer.featureCallout .screen[pos=callout] .action-buttons .secondary-cta .secondary {
+  padding: 4px 16px;
+  font-size: 0.8em;
+  height: 2em;
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .action-buttons .primary {
+  font-weight: bold;
+  float: inline-end;
+  margin-inline: 10px 30px;
+  padding: 4px 16px;
+  font-size: 0.8em;
+  line-height: 16px;
+  min-height: 32px;
+  background-color: rgba(207, 207, 216, 0.33);
+}
+@media (prefers-color-scheme: dark) {
+  .onboardingContainer.featureCallout .screen[pos=callout] .action-buttons .primary {
+    background-color: #2b2a33;
+  }
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .action-buttons .secondary-cta {
+  float: inline-end;
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .action-buttons .primary,
+.onboardingContainer.featureCallout .screen[pos=callout] .main-content .dismiss-button {
+  border-radius: 4px;
+  border: 0;
+  cursor: pointer;
+  color: ButtonText;
+}
+.onboardingContainer.featureCallout .screen[pos=callout] .action-buttons .primary:hover,
+.onboardingContainer.featureCallout .screen[pos=callout] .main-content .dismiss-button:hover {
+  background-color: #e8e3e4;
+}
+@media (prefers-color-scheme: dark) {
+  .onboardingContainer.featureCallout .screen[pos=callout] .action-buttons .primary,
+.onboardingContainer.featureCallout .screen[pos=callout] .main-content .dismiss-button {
+    background-color: #2b2a33;
+  }
+  .onboardingContainer.featureCallout .screen[pos=callout] .action-buttons .primary:hover,
+.onboardingContainer.featureCallout .screen[pos=callout] .main-content .dismiss-button:hover {
+    background-color: #363434;
+  }
+}
+@media (prefers-contrast) {
+  .onboardingContainer.featureCallout .screen[pos=callout] .action-buttons .primary,
+.onboardingContainer.featureCallout .screen[pos=callout] .main-content .dismiss-button {
+    border: 1px solid ButtonText;
+    background-color: #FFF;
+  }
+}
+@media (prefers-contrast) and (prefers-color-scheme: dark) {
+  .onboardingContainer.featureCallout .screen[pos=callout] .action-buttons .primary,
+.onboardingContainer.featureCallout .screen[pos=callout] .main-content .dismiss-button {
+    background-color: #1c1b22;
+  }
+}
+@media (prefers-contrast) {
+  .onboardingContainer.featureCallout .screen[pos=callout] .action-buttons .primary:hover,
+.onboardingContainer.featureCallout .screen[pos=callout] .main-content .dismiss-button:hover {
+    background-color: ButtonText;
+    color: #FFF;
+  }
+}
+@media (prefers-contrast) and (prefers-color-scheme: dark) {
+  .onboardingContainer.featureCallout .screen[pos=callout] .action-buttons .primary:hover,
+.onboardingContainer.featureCallout .screen[pos=callout] .main-content .dismiss-button:hover {
+    color: #1c1b22;
+  }
+}
+.onboardingContainer.featureCallout.callout-arrow::before, .onboardingContainer.featureCallout.callout-arrow::after {
+  content: "";
+  position: absolute;
+  width: 24px;
+  height: 24px;
+  transform: rotate(45deg);
+}
+.onboardingContainer.featureCallout.callout-arrow:dir(rtl)::before, .onboardingContainer.featureCallout.callout-arrow:dir(rtl)::after {
+  transform: rotate(315deg);
+}
+.onboardingContainer.featureCallout.callout-arrow::before {
+  z-index: 2147483647;
+  background-color: #FFF;
+}
+@media (prefers-color-scheme: dark) {
+  .onboardingContainer.featureCallout.callout-arrow::before {
+    background-color: #1c1b22;
+  }
+}
+.onboardingContainer.featureCallout.callout-arrow::after {
+  background: transparent;
+  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
+  z-index: -1;
+}
+.onboardingContainer.featureCallout.arrow-top::before, .onboardingContainer.featureCallout.arrow-top::after {
+  top: -12px;
+  inset-inline-start: calc(50% - 12px);
+}
+.onboardingContainer.featureCallout.arrow-top::before {
+  border-top: 1px solid #CFCFD8;
+  border-inline-start: 1px solid #CFCFD8;
+}
+.onboardingContainer.featureCallout.arrow-bottom::before, .onboardingContainer.featureCallout.arrow-bottom::after {
+  top: calc(100% - 12px);
+  inset-inline-start: calc(50% - 12px);
+}
+.onboardingContainer.featureCallout.arrow-bottom::before {
+  border-inline-end: 1px solid #CFCFD8;
+  border-bottom: 1px solid #CFCFD8;
+}
+.onboardingContainer.featureCallout.arrow-inline-end::before, .onboardingContainer.featureCallout.arrow-inline-end::after {
+  top: calc(50% - 12px);
+  inset-inline-start: calc(100% - 12px);
+}
+.onboardingContainer.featureCallout.arrow-inline-end::before {
+  border-top: 1px solid #CFCFD8;
+  border-inline-end: 1px solid #CFCFD8;
+}
+.onboardingContainer.featureCallout.arrow-inline-start::before, .onboardingContainer.featureCallout.arrow-inline-start::after {
+  top: calc(50% - 12px);
+  inset-inline-start: -12px;
+}
+.onboardingContainer.featureCallout.arrow-inline-start::before {
+  border-bottom: 1px solid #CFCFD8;
+  border-inline-start: 1px solid #CFCFD8;
+}
+.onboardingContainer.featureCallout.arrow-top-end::before, .onboardingContainer.featureCallout.arrow-top-end::after {
+  top: -12px;
+  inset-inline-end: 12px;
+}
+.onboardingContainer.featureCallout.arrow-top-end::before {
+  border-top: 1px solid #CFCFD8;
+  border-inline-start: 1px solid #CFCFD8;
+}
+.onboardingContainer.featureCallout.arrow-top-start::before, .onboardingContainer.featureCallout.arrow-top-start::after {
+  top: -12px;
+  inset-inline-start: 12px;
+}
+.onboardingContainer.featureCallout.arrow-top-start::before {
+  border-top: 1px solid #CFCFD8;
+  border-inline-start: 1px solid #CFCFD8;
+}
+
+html {
+  height: 100%;
+}
+
+.dummy {
+  background: var(--mr-welcome-background-color) var(--mr-welcome-background-gradient) var(--mr-secondary-position) var(--mr-screen-background-color);
+}
+
+:root[dialogroot] {
+  background-color: transparent;
+}
+:root[dialogroot] body {
+  padding: 0;
+}
+:root[dialogroot] .onboardingContainer {
+  height: 100%;
+  background-color: transparent;
+}
+:root[dialogroot] .onboardingContainer:dir(rtl) {
+  transform: unset;
+}
+:root[dialogroot] .onboardingContainer .logo-container {
+  pointer-events: none;
+}
+:root[dialogroot] .onboardingContainer .screen:dir(rtl) {
+  transform: unset;
+}
+
+.welcome-container .onboardingContainer {
+  min-height: 610px;
+  min-width: fit-content;
+}
+
+.onboardingContainer {
+  --grey-subtitle-1: #696977;
+  --newtab-button-secondary-color: #0060DF;
+  --mr-welcome-background-color: #F8F6F4;
+  --mr-screen-heading-color: var(--in-content-text-color);
+  --mr-welcome-background-gradient: linear-gradient(0deg, rgba(144, 89, 255, 0.2) 0%, rgba(2, 144, 238, 0.2) 100%);
+  --mr-screen-background-color: #F8F6F4;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Ubuntu", "Helvetica Neue", sans-serif;
+  font-size: 16px;
+  position: relative;
+  text-align: center;
+  height: 100vh;
+  --transition: 0.6s opacity, 0.6s scale, 0.6s rotate, 0.6s translate;
+}
+@media (prefers-color-scheme: dark) {
+  .onboardingContainer {
+    --grey-subtitle-1: #FFF;
+    --newtab-button-secondary-color: #FFF;
+    --mr-welcome-background-color: #333336;
+    --mr-welcome-background-gradient: linear-gradient(0deg, rgba(144, 89, 255, 0.3) 0%, rgba(2, 144, 238, 0.3) 100%);
+    --mr-screen-background-color: #62697A;
+  }
+}
+@media (prefers-contrast) {
+  .onboardingContainer {
+    --mr-screen-background-color: buttontext;
+    --mr-screen-heading-color: buttonface;
+    background-color: var(--in-content-page-background);
+  }
+}
+@media (prefers-reduced-motion: no-preference) {
+  .onboardingContainer {
+    --translate: 30px;
+    --rotate: 20deg;
+    --scale: 0.4;
+    --progress-bar-transition: 0.6s translate;
+  }
+  .onboardingContainer:dir(rtl) {
+    --scale: -0.4 0.4;
+  }
+}
+@media (prefers-reduced-motion: reduce) {
+  .onboardingContainer {
+    --translate: 0;
+    --rotate: 0deg;
+    --scale: 1;
+    --progress-bar-transition: none;
+  }
+  .onboardingContainer:dir(rtl) {
+    --scale: -1 1;
+  }
+}
+.onboardingContainer:dir(rtl) {
+  transform: rotateY(180deg);
+}
+.onboardingContainer .section-main {
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  width: 504px;
+  flex-shrink: 0;
+}
+.onboardingContainer .main-content {
+  background-color: var(--in-content-page-background);
+  border-radius: 20px;
+  box-shadow: 0 2px 14px 0 rgba(0, 0, 0, 0.2);
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+  padding: 0;
+  transition: var(--transition);
+  z-index: 1;
+  box-sizing: border-box;
+}
+.onboardingContainer .main-content.no-steps {
+  padding-bottom: 48px;
+}
+.onboardingContainer .main-content .main-content-inner {
+  display: flex;
+  flex-direction: column;
+  flex-grow: 1;
+  justify-content: space-around;
+}
+.onboardingContainer .main-content .no-steps[pos=corner] .main-content, .onboardingContainer .main-content .no-steps[pos=center].dialog-initial.dialog-last .main-content,
+.onboardingContainer .screen[pos=corner] .main-content,
+.onboardingContainer .screen[pos=center].dialog-initial.dialog-last .main-content {
+  padding-bottom: 48px;
+}
+.onboardingContainer .main-content .no-steps[pos=corner] .steps, .onboardingContainer .main-content .no-steps[pos=center].dialog-initial.dialog-last .steps,
+.onboardingContainer .screen[pos=corner] .steps,
+.onboardingContainer .screen[pos=center].dialog-initial.dialog-last .steps {
+  display: none;
+}
+.onboardingContainer .screen {
+  display: flex;
+  position: relative;
+  flex-flow: row nowrap;
+  height: 100%;
+  min-height: 500px;
+  overflow: hidden;
+  --in-content-link-color: var(--in-content-primary-button-background);
+  --in-content-link-color-hover: var(--in-content-primary-button-background-hover);
+  --in-content-link-color-active: var(--in-content-primary-button-background-active);
+  --in-content-link-color-visited: var(--in-content-link-color);
+}
+.onboardingContainer .screen.light-text {
+  --in-content-page-color: rgb(251, 251, 254);
+  --in-content-primary-button-text-color: rgb(43, 42, 51);
+  --in-content-primary-button-text-color-hover: rgb(43, 42, 51);
+  --in-content-primary-button-background: rgb(0, 221, 255);
+  --in-content-primary-button-background-hover: rgb(128, 235, 255);
+  --in-content-primary-button-background-active: rgb(170, 242, 255);
+  --checkbox-checked-bgcolor: var(--in-content-primary-button-background);
+  --in-content-button-text-color: var(--in-content-page-color);
+}
+.onboardingContainer .screen.dark-text {
+  --in-content-page-color: rgb(21, 20, 26);
+  --in-content-primary-button-text-color: rgb(251, 251, 254);
+  --in-content-primary-button-text-color-hover: rgb(251, 251, 254);
+  --in-content-primary-button-background: #0061E0;
+  --in-content-primary-button-background-hover: #0250BB;
+  --in-content-primary-button-background-active: #053E94;
+  --in-content-primary-button-border-color: transparent;
+  --in-content-primary-button-border-hover: transparent;
+  --checkbox-checked-bgcolor: var(--in-content-primary-button-background);
+  --in-content-button-text-color: var(--in-content-page-color);
+}
+.onboardingContainer .screen:dir(rtl) {
+  transform: rotateY(180deg);
+}
+.onboardingContainer .screen[pos=center] {
+  background-color: rgba(21, 20, 26, 0.5);
+  min-width: 504px;
+}
+.onboardingContainer .screen[pos=center].with-noodles {
+  min-width: 610px;
+  min-height: 610px;
+}
+.onboardingContainer .screen[pos=center].with-noodles .section-main {
+  height: 504px;
+}
+.onboardingContainer .screen[pos=center].with-video {
+  justify-content: center;
+  background: none;
+  align-items: center;
+}
+.onboardingContainer .screen[pos=center].with-video .section-main {
+  width: 800px;
+  height: 550px;
+}
+.onboardingContainer .screen[pos=center].with-video .main-content {
+  background-color: var(--mr-welcome-background-color);
+  border-radius: 8px;
+  box-shadow: 0 2px 14px rgba(58, 57, 68, 0.2);
+  padding: 44px 85px 20px;
+}
+.onboardingContainer .screen[pos=center].with-video .main-content .welcome-text {
+  margin: 0;
+}
+.onboardingContainer .screen[pos=center].with-video .main-content .main-content-inner {
+  justify-content: space-between;
+}
+.onboardingContainer .screen[pos=center].with-video .main-content h1,
+.onboardingContainer .screen[pos=center].with-video .main-content h2 {
+  align-self: start;
+}
+.onboardingContainer .screen[pos=center].with-video .main-content h1 {
+  font-size: 24px;
+  line-height: 28.8px;
+}
+.onboardingContainer .screen[pos=center].with-video .main-content h2 {
+  font-size: 15px;
+  line-height: 22px;
+}
+.onboardingContainer .screen[pos=center].with-video .main-content .secondary-cta {
+  justify-content: end;
+}
+.onboardingContainer .screen[pos=center].with-video .main-content .secondary-cta .arrow-icon {
+  -moz-context-properties: fill;
+  fill: currentColor;
+}
+.onboardingContainer .screen[pos=center].with-video .main-content .secondary-cta .arrow-icon::after {
+  content: "";
+  padding-inline-end: 12px;
+  margin-inline-start: 4px;
+  background: url("chrome://browser/skin/forward.svg") no-repeat center/12px;
+}
+.onboardingContainer .screen[pos=center].with-video .main-content .secondary-cta .arrow-icon:dir(rtl)::after {
+  background-image: url("chrome://browser/skin/back.svg");
+}
+.onboardingContainer .screen[pos=center].with-video .main-content .secondary-cta .secondary {
+  background-color: var(--in-content-button-background) !important;
+  border: 1px solid var(--in-content-button-border-color);
+  line-height: 12px;
+  font-size: 0.72em;
+  font-weight: 600;
+  padding: 8px 16px;
+  color: var(--in-content-button-text-color);
+}
+.onboardingContainer .screen[pos=center].with-video .main-content .secondary-cta .secondary:hover {
+  text-decoration: none;
+  background-color: var(--in-content-button-background-hover) !important;
+  color: var(--in-content-button-text-color-hover);
+}
+.onboardingContainer .screen:not([pos=split]) .secondary-cta .secondary {
+  background: none;
+  color: var(--in-content-link-color);
+  font-size: 14px;
+  font-weight: normal;
+  line-height: 20px;
+}
+.onboardingContainer .screen:not([pos=split]) .secondary-cta.top button {
+  color: #FFF;
+}
+.onboardingContainer .screen:not([pos=split]) .secondary-cta.top button:hover {
+  color: #E0E0E6;
+}
+.onboardingContainer .screen[pos=split] {
+  margin: auto;
+  min-height: 550px;
+}
+.onboardingContainer .screen[pos=split]::before {
+  content: "";
+  position: absolute;
+  box-shadow: 0 2px 14px 0 rgba(0, 0, 0, 0.2);
+  width: 800px;
+  height: 550px;
+  border-radius: 8px;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  margin: auto;
+  pointer-events: none;
+}
+.onboardingContainer .screen[pos=split] .section-secondary,
+.onboardingContainer .screen[pos=split] .section-main {
+  width: 400px;
+  height: 550px;
+}
+.onboardingContainer .screen[pos=split] .secondary-cta.top {
+  padding-inline-end: 0;
+}
+.onboardingContainer .screen[pos=split] .secondary-cta.top button {
+  color: var(--in-content-page-color);
+}
+.onboardingContainer .screen[pos=split] .section-main {
+  flex-direction: row;
+  display: block;
+  margin: auto auto auto 0;
+}
+.onboardingContainer .screen[pos=split] .section-main:dir(rtl) {
+  margin: auto 0 auto auto;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content {
+  border-radius: 0 8px 8px 0;
+  overflow: hidden;
+  padding-inline: 35px 20px;
+  padding-block: 120px 0;
+  box-shadow: none;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content:dir(rtl) {
+  border-radius: 8px 0 0 8px;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .main-content-inner {
+  min-height: 330px;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .main-content-inner .language-switcher-container .primary {
+  margin-bottom: 5px;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons {
+  position: relative;
+  text-align: initial;
+  height: 100%;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons .checkbox-container {
+  font-size: 13px;
+  margin-block: 1em;
+  transition: var(--transition);
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons .checkbox-container input,
+.onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons .checkbox-container label {
+  vertical-align: middle;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons .additional-cta {
+  margin: 8px 0;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons .additional-cta.cta-link {
+  color: var(--in-content-link-color);
+  background: none;
+  padding: 0;
+  font-weight: normal;
+  text-decoration: underline;
+  cursor: pointer;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons .additional-cta.cta-link:hover {
+  color: var(--in-content-link-color-hover);
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons .additional-cta.secondary:hover {
+  background-color: var(--in-content-button-background-hover);
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons.additional-cta-container {
+  display: flex;
+  flex-direction: column;
+  align-items: start;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons .secondary-cta {
+  position: absolute;
+  bottom: -30px;
+  inset-inline-end: 0;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons .secondary-cta .secondary {
+  background-color: var(--in-content-button-background) !important;
+  border: 1px solid var(--in-content-button-border-color);
+  line-height: 12px;
+  font-size: 0.72em;
+  font-weight: 600;
+  padding: 8px 16px;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons .secondary-cta .secondary:hover {
+  text-decoration: none;
+  background-color: var(--in-content-button-background-hover) !important;
+  color: var(--in-content-button-text-color-hover);
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons .secondary-cta .arrow-icon {
+  -moz-context-properties: fill;
+  fill: currentColor;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons .secondary-cta .arrow-icon::after {
+  content: "";
+  padding-inline-end: 12px;
+  margin-inline-start: 4px;
+  background: url("chrome://browser/skin/forward.svg") no-repeat center/12px;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons .secondary-cta .arrow-icon:dir(rtl)::after {
+  background-image: url("chrome://browser/skin/back.svg");
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .logo-container {
+  text-align: start;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .brand-logo {
+  height: 25px;
+  margin-block: 0;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .welcome-text {
+  margin-inline: 0 10px;
+  margin-block: 10px 35px;
+  text-align: initial;
+  align-items: initial;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .welcome-text h1 {
+  font-size: 24px;
+  line-height: 1.2;
+  width: 300px;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .welcome-text h2 {
+  margin: 10px 0 0;
+  min-height: 1em;
+  font-size: 15px;
+  line-height: 1.5;
+}
+@media (prefers-contrast: no-preference) {
+  .onboardingContainer .screen[pos=split] .section-main .main-content .welcome-text h2 {
+    color: #5B5B66;
+  }
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .welcome-text h1,
+.onboardingContainer .screen[pos=split] .section-main .main-content .primary {
+  margin: 0;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .steps {
+  z-index: 1;
+}
+.onboardingContainer .screen[pos=split] .section-main .main-content .steps.progress-bar {
+  width: 400px;
+  margin-inline: -35px;
+}
+@media (prefers-contrast) {
+  .onboardingContainer .screen[pos=split] .section-main .main-content {
+    border: 1px solid var(--in-content-page-color);
+  }
+  .onboardingContainer .screen[pos=split] .section-main .main-content .steps.progress-bar {
+    border-top: 1px solid var(--in-content-page-color);
+    background-color: var(--in-content-page-background);
+  }
+  .onboardingContainer .screen[pos=split] .section-main .main-content .steps.progress-bar .indicator {
+    background-color: var(--in-content-accent-color);
+  }
+}
+.onboardingContainer .screen[pos=split] .section-secondary {
+  --mr-secondary-position: center center / auto 350px;
+  border-radius: 8px 0 0 8px;
+  margin: auto 0 auto auto;
+  display: flex;
+  align-items: center;
+  -moz-context-properties: fill, stroke, fill-opacity, stroke-opacity;
+  stroke: currentColor;
+}
+.onboardingContainer .screen[pos=split] .section-secondary:dir(rtl) {
+  border-radius: 0 8px 8px 0;
+  margin: auto auto auto 0;
+}
+.onboardingContainer .screen[pos=split] .section-secondary h1 {
+  color: var(--mr-screen-heading-color);
+  font-weight: 700;
+  font-size: 47px;
+  line-height: 110%;
+  max-width: 340px;
+  text-align: initial;
+  white-space: pre-wrap;
+  text-shadow: none;
+  margin-inline: 40px 0;
+}
+.onboardingContainer .screen[pos=split] .section-secondary .image-alt {
+  width: inherit;
+  height: inherit;
+}
+.onboardingContainer .screen[pos=split] .section-secondary .hero-image {
+  flex: 1;
+  display: flex;
+  justify-content: center;
+  max-height: 100%;
+}
+.onboardingContainer .screen[pos=split] .section-secondary .hero-image img {
+  width: 100%;
+  max-width: 180px;
+  margin: 25px 0;
+  padding-bottom: 30px;
+}
+@media only screen and (max-width: 800px) {
+  .onboardingContainer .screen[pos=split] .section-secondary .hero-image img {
+    padding-bottom: unset;
+  }
+}
+.onboardingContainer .screen[pos=split] .tiles-theme-container {
+  margin-block: -20px auto;
+  align-items: initial;
+}
+.onboardingContainer .screen[pos=split] .tiles-theme-container .colorway-text {
+  text-align: initial;
+  transition: var(--transition);
+  font-size: 13px;
+  line-height: 1.5;
+  min-height: 4.5em;
+  margin-block: 10px 20px;
+}
+.onboardingContainer .screen[pos=split] .tiles-theme-container .theme {
+  min-width: 38px;
+}
+@media (prefers-contrast: no-preference) and (prefers-color-scheme: dark) {
+  .onboardingContainer .screen[pos=split] .section-main .main-content .welcome-text h2 {
+    color: #CFCFD8;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons .secondary {
+    background-color: #2B2A33;
+  }
+}
+@media only screen and (min-width: 800px) {
+  .onboardingContainer .screen[pos=split] .tiles-theme-section {
+    margin-inline-start: -10px;
+  }
+}
+@media only screen and (max-width: 800px) {
+  .onboardingContainer .screen[pos=split] {
+    flex-direction: column;
+    min-height: 550px;
+  }
+  .onboardingContainer .screen[pos=split]::before {
+    width: 400px;
+  }
+  .onboardingContainer .screen[pos=split] .section-secondary,
+.onboardingContainer .screen[pos=split] .section-main {
+    width: 400px;
+  }
+  .onboardingContainer .screen[pos=split] .section-secondary {
+    --mr-secondary-background-position-y: top;
+    --mr-secondary-position: center var(--mr-secondary-background-position-y) / 75%;
+    border-radius: 8px 8px 0 0;
+    margin: auto auto 0;
+    height: 100px;
+  }
+  .onboardingContainer .screen[pos=split] .section-secondary .hero-image img {
+    margin: 6px 0;
+  }
+  .onboardingContainer .screen[pos=split] .section-secondary .message-text {
+    margin-inline: auto;
+  }
+  .onboardingContainer .screen[pos=split] .section-secondary h1 {
+    font-size: 35px;
+    text-align: center;
+    white-space: normal;
+    margin-inline: auto;
+    margin-block: 14px 6px;
+  }
+  .onboardingContainer .screen[pos=split] .section-secondary:dir(rtl) {
+    margin: auto auto 0;
+    border-radius: 8px 8px 0 0;
+  }
+  .onboardingContainer .screen[pos=split] .section-main {
+    margin: 0 auto auto;
+    height: 450px;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .main-content {
+    border-radius: 0 0 8px 8px;
+    padding: 30px 0 0;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .main-content .main-content-inner {
+    align-items: center;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .main-content .logo-container {
+    text-align: center;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .main-content .logo-container .brand-logo {
+    min-height: 25px;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .main-content .logo-container .brand-logo, .onboardingContainer .screen[pos=split] .section-main .main-content .logo-container .brand-logo:dir(rtl) {
+    background-position: center;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .main-content .welcome-text {
+    align-items: center;
+    text-align: center;
+    margin-inline: 0;
+    padding-inline: 30px;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .main-content .welcome-text .spacer-bottom,
+.onboardingContainer .screen[pos=split] .section-main .main-content .welcome-text .spacer-top {
+    display: none;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons {
+    text-align: center;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons .checkbox-container {
+    display: none;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .main-content .action-buttons .secondary-cta {
+    position: relative;
+    margin-block: 10px 0;
+    bottom: 0;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .main-content .primary,
+.onboardingContainer .screen[pos=split] .section-main .main-content .secondary {
+    min-width: 240px;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .main-content .colorway-text {
+    text-align: center;
+    margin-inline: 30px;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .main-content .steps {
+    padding-block: 0;
+    margin: 0;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .main-content .steps.progress-bar {
+    margin-inline: 0;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .additional-cta.cta-link {
+    align-self: center;
+  }
+  .onboardingContainer .screen[pos=split] .section-main:dir(rtl) {
+    margin: 0 auto auto;
+  }
+  .onboardingContainer .screen[pos=split] .section-main:dir(rtl) .main-content {
+    border-radius: 0 0 8px 8px;
+  }
+}
+@media only screen and (max-height: 650px) and (min-width: 800px) and (max-width: 990px) {
+  .onboardingContainer .screen[pos=split] .section-main {
+    position: relative;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .secondary-cta.top {
+    padding: 0;
+    top: 20px;
+    inset-inline-end: 20px;
+  }
+}
+@media only screen and (max-height: 650px) and (max-width: 590px) {
+  .onboardingContainer .screen[pos=split] .section-main {
+    position: relative;
+  }
+  .onboardingContainer .screen[pos=split] .section-main .secondary-cta.top {
+    padding: 0;
+    top: 0;
+    inset-inline-end: 0;
+  }
+}
+.onboardingContainer .brand-logo {
+  margin-block: 60px 10px;
+  transition: var(--transition);
+  height: 80px;
+}
+.onboardingContainer .brand-logo.cta-top {
+  margin-top: 25px;
+}
+.onboardingContainer .brand-logo.hide {
+  visibility: hidden;
+  padding: unset;
+  margin-top: 50px;
+}
+.onboardingContainer .rtamo-theme-icon {
+  max-height: 30px;
+  border-radius: 2px;
+  margin-bottom: 10px;
+  margin-top: 24px;
+}
+.onboardingContainer .rtamo-icon {
+  text-align: start;
+}
+@media only screen and (max-width: 800px) {
+  .onboardingContainer .rtamo-icon {
+    text-align: center;
+  }
+}
+.onboardingContainer .welcome-text {
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  align-items: center;
+  margin: 0.5em 1em;
+  transition: var(--transition);
+}
+.onboardingContainer .welcome-text h1,
+.onboardingContainer .welcome-text h2 {
+  color: var(--in-content-page-color);
+  line-height: 1.5;
+}
+.onboardingContainer .welcome-text h1 {
+  font-size: 24px;
+  font-weight: 600;
+  margin: 0 6px;
+  letter-spacing: -0.02em;
+  outline: none;
+}
+.onboardingContainer .welcome-text h2 {
+  font-size: 16px;
+  font-weight: normal;
+  margin: 10px 6px 0;
+  max-width: 750px;
+  letter-spacing: -0.01em;
+}
+.onboardingContainer .welcome-text.fancy h1 {
+  background-image: linear-gradient(90deg, #9059FF, #FF4AA2, #FF8C00, #FF4AA2, #9059FF);
+  background-clip: text;
+  background-size: 200%;
+}
+@media (prefers-contrast: no-preference) {
+  .onboardingContainer .welcome-text.fancy h1 {
+    color: transparent;
+  }
+}
+@media (prefers-color-scheme: dark) {
+  .onboardingContainer .welcome-text.fancy h1 {
+    background-image: linear-gradient(90deg, #C688FF, #FF84C0, #FFBD4F, #FF84C0, #C688FF);
+  }
+  .onboardingContainer .welcome-text.fancy h1::selection {
+    color: #FFF;
+    background-color: #696977;
+  }
+}
+.onboardingContainer .welcome-text.shine h1 {
+  animation: shine 50s linear infinite;
+  background-size: 400%;
+}
+@keyframes shine {
+  to {
+    background-position: 400%;
+  }
+}
+.onboardingContainer .welcome-text .cta-paragraph a {
+  margin: 0;
+  text-decoration: underline;
+  cursor: pointer;
+}
+.onboardingContainer .screen.light-text .welcome-text.fancy h1 {
+  background-image: linear-gradient(90deg, #C688FF, #FF84C0, #FFBD4F, #FF84C0, #C688FF);
+}
+.onboardingContainer .screen.dark-text .welcome-text.fancy h1 {
+  background-image: linear-gradient(90deg, #9059FF, #FF4AA2, #FF8C00, #FF4AA2, #9059FF);
+}
+.onboardingContainer .welcomeZap span {
+  position: relative;
+  z-index: 1;
+  white-space: nowrap;
+}
+.onboardingContainer .welcomeZap .zap::after {
+  display: block;
+  background-repeat: no-repeat;
+  background-size: 100% 100%;
+  content: "";
+  position: absolute;
+  top: calc(100% - 0.15em);
+  width: 100%;
+  height: 0.3em;
+  left: 0;
+  z-index: -1;
+  transform: scaleY(3);
+}
+.onboardingContainer .welcomeZap .zap.short::after {
+  background-image: url("chrome://activity-stream/content/data/content/assets/short-zap.svg");
+}
+.onboardingContainer .welcomeZap .zap.long::after {
+  background-image: url("chrome://activity-stream/content/data/content/assets/long-zap.svg");
+}
+.onboardingContainer .language-loader {
+  filter: invert(1);
+  margin-inline-end: 10px;
+  position: relative;
+  top: 3px;
+  width: 16px;
+  height: 16px;
+  margin-top: -6px;
+}
+@media (prefers-color-scheme: dark) {
+  .onboardingContainer .language-loader {
+    filter: invert(0);
+  }
+}
+.onboardingContainer .tiles-theme-container {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  margin: 10px auto;
+}
+.onboardingContainer .sr-only {
+  opacity: 0;
+  overflow: hidden;
+  position: absolute;
+}
+.onboardingContainer .sr-only.input {
+  height: 1px;
+  width: 1px;
+}
+.onboardingContainer .tiles-theme-section {
+  border: 0;
+  display: flex;
+  flex-wrap: wrap;
+  gap: 5px;
+  justify-content: space-evenly;
+  margin-inline: 10px;
+  padding: 10px;
+  transition: var(--transition);
+}
+.onboardingContainer .tiles-theme-section:hover, .onboardingContainer .tiles-theme-section:active, .onboardingContainer .tiles-theme-section:focus-within {
+  border-radius: 8px;
+  outline: 2px solid var(--in-content-primary-button-background);
+}
+.onboardingContainer .tiles-theme-section .theme {
+  align-items: center;
+  display: flex;
+  flex-direction: column;
+  flex: 1;
+  padding: 0;
+  min-width: 50px;
+  width: 180px;
+  color: #000;
+  box-shadow: none;
+  border-radius: 4px;
+  cursor: pointer;
+  z-index: 0;
+}
+.onboardingContainer .tiles-theme-section .theme.colorway {
+  width: auto;
+}
+.onboardingContainer .tiles-theme-section .theme:focus, .onboardingContainer .tiles-theme-section .theme:active {
+  outline: initial;
+  outline-offset: initial;
+}
+.onboardingContainer .tiles-theme-section .theme .icon.colorway,
+.onboardingContainer .tiles-theme-section .theme .label.colorway {
+  width: 20px;
+  height: 20px;
+}
+.onboardingContainer .tiles-theme-section .theme .icon {
+  background-size: cover;
+  width: 40px;
+  height: 40px;
+  border-radius: 40px;
+  outline: 1px solid var(--in-content-border-color);
+  outline-offset: -0.5px;
+  z-index: -1;
+}
+.onboardingContainer .tiles-theme-section .theme .icon:dir(rtl) {
+  transform: scaleX(-1);
+}
+.onboardingContainer .tiles-theme-section .theme .icon:focus, .onboardingContainer .tiles-theme-section .theme .icon:active, .onboardingContainer .tiles-theme-section .theme .icon.selected {
+  outline: 2px solid var(--in-content-primary-button-background);
+  outline-offset: 2px;
+}
+.onboardingContainer .tiles-theme-section .theme .icon.light {
+  background-image: url("resource://builtin-themes/light/icon.svg");
+}
+.onboardingContainer .tiles-theme-section .theme .icon.dark {
+  background-image: url("resource://builtin-themes/dark/icon.svg");
+}
+.onboardingContainer .tiles-theme-section .theme .icon.alpenglow {
+  background-image: url("resource://builtin-themes/alpenglow/icon.svg");
+}
+.onboardingContainer .tiles-theme-section .theme .icon.default, .onboardingContainer .tiles-theme-section .theme .icon.automatic {
+  background-image: url("resource://default-theme/icon.svg");
+}
+.onboardingContainer .tiles-theme-section .theme .icon.default.colorway, .onboardingContainer .tiles-theme-section .theme .icon.automatic.colorway {
+  background-image: url("chrome://activity-stream/content/data/content/assets/default.svg");
+}
+.onboardingContainer .tiles-theme-section .theme .icon.playmaker {
+  background-image: url("resource://builtin-themes/colorways/2022playmaker/balanced/icon.svg");
+}
+.onboardingContainer .tiles-theme-section .theme .icon.expressionist {
+  background-image: url("resource://builtin-themes/colorways/2022expressionist/balanced/icon.svg");
+}
+.onboardingContainer .tiles-theme-section .theme .icon.visionary {
+  background-image: url("resource://builtin-themes/colorways/2022visionary/balanced/icon.svg");
+}
+.onboardingContainer .tiles-theme-section .theme .icon.dreamer {
+  background-image: url("resource://builtin-themes/colorways/2022dreamer/balanced/icon.svg");
+}
+.onboardingContainer .tiles-theme-section .theme .icon.innovator {
+  background-image: url("resource://builtin-themes/colorways/2022innovator/balanced/icon.svg");
+}
+.onboardingContainer .tiles-theme-section .theme .icon.activist {
+  background-image: url("resource://builtin-themes/colorways/2022activist/balanced/icon.svg");
+}
+.onboardingContainer .tiles-theme-section .theme .text {
+  display: flex;
+  color: var(--in-content-page-color);
+  font-size: 14px;
+  font-weight: normal;
+  line-height: 20px;
+  margin-inline-start: 0;
+  margin-top: 9px;
+}
+.onboardingContainer .tiles-theme-section legend {
+  cursor: default;
+}
+.onboardingContainer .tiles-container {
+  margin: 10px auto;
+}
+.onboardingContainer .tiles-container.info {
+  padding: 6px 12px 12px;
+}
+.onboardingContainer .tiles-container.info:hover, .onboardingContainer .tiles-container.info:focus {
+  background-color: rgba(217, 217, 227, 0.3);
+  border-radius: 4px;
+}
+.onboardingContainer .tiles-delayed {
+  animation: fadein 0.4s;
+}
+.onboardingContainer .multi-select-container {
+  display: flex;
+  flex-direction: column;
+  align-items: flex-start;
+  margin-block: -1em 1em;
+  color: #5B5B66;
+  font-weight: 400;
+  font-size: 14px;
+  transition: var(--transition);
+  z-index: 1;
+}
+.onboardingContainer .multi-select-container .checkbox-container {
+  display: flex;
+  margin-bottom: 16px;
+  align-items: center;
+}
+@media (prefers-color-scheme: dark) {
+  .onboardingContainer .multi-select-container {
+    color: #CFCFD8;
+  }
+}
+.onboardingContainer .mobile-downloads .qr-code-image {
+  margin: 24px 0 10px;
+  width: 113px;
+  height: 113px;
+}
+.onboardingContainer .mobile-downloads .email-link {
+  font-size: 16px;
+  font-weight: 400;
+  text-decoration: underline;
+  color: var(--in-content-link-color);
+  background: none;
+}
+.onboardingContainer .mobile-downloads .email-link:hover {
+  background: none;
+}
+.onboardingContainer .mobile-downloads .ios button {
+  background-image: url("chrome://app-marketplace-icons/locale/ios.svg");
+}
+.onboardingContainer .mobile-downloads .android button {
+  background-image: url("chrome://app-marketplace-icons/locale/android.png");
+}
+.onboardingContainer .mobile-download-buttons {
+  list-style: none;
+  padding: 10px 0;
+  margin: 0;
+}
+.onboardingContainer .mobile-download-buttons li {
+  display: inline-block;
+}
+.onboardingContainer .mobile-download-buttons li button {
+  display: inline-block;
+  height: 45px;
+  width: 152px;
+  background-repeat: no-repeat;
+  background-size: contain;
+  background-position: center;
+  box-shadow: none;
+  border: 0;
+}
+.onboardingContainer .mobile-download-buttons li:not(:first-child) {
+  margin-inline: 5px 0;
+}
+.onboardingContainer .dismiss-button {
+  padding: 0;
+  margin-block: 30px -45px;
+  margin-inline: 0 30px;
+  display: block;
+  float: inline-end;
+  background: url("chrome://global/skin/icons/close.svg") no-repeat center/cover;
+  height: 15px;
+  width: 15px;
+  align-self: end;
+  min-height: 15px;
+  min-width: 15px;
+  -moz-context-properties: fill;
+  fill: currentColor;
+}
+@keyframes fadein {
+  from {
+    opacity: 0;
+  }
+}
+.onboardingContainer .secondary-cta {
+  display: flex;
+  align-items: end;
+  flex-direction: row;
+  justify-content: center;
+  font-size: 14px;
+  transition: var(--transition);
+}
+.onboardingContainer .secondary-cta.top {
+  justify-content: end;
+  padding-inline-end: min(150px, 500px - 70vh);
+  padding-top: 4px;
+  position: absolute;
+  top: 10px;
+  inset-inline-end: 20px;
+  z-index: 2;
+}
+.onboardingContainer .secondary-cta span {
+  color: var(--grey-subtitle-1);
+  margin: 0 4px;
+}
+.onboardingContainer .message-text,
+.onboardingContainer .attrib-text {
+  transition: var(--transition);
+}
+.onboardingContainer .helptext {
+  padding: 1em;
+  text-align: center;
+  color: var(--grey-subtitle-1);
+  font-size: 12px;
+  line-height: 18px;
+}
+.onboardingContainer .helptext.default {
+  align-self: center;
+  max-width: 40%;
+}
+.onboardingContainer .helptext span {
+  padding-inline-end: 4px;
+}
+.onboardingContainer .helptext-img {
+  height: 1.5em;
+  width: 1.5em;
+  margin-inline-end: 4px;
+  vertical-align: middle;
+}
+.onboardingContainer .helptext-img.end {
+  margin: 4px;
+}
+.onboardingContainer .helptext-img.footer {
+  vertical-align: bottom;
+}
+.onboardingContainer .steps {
+  display: flex;
+  flex-direction: row;
+  justify-content: center;
+  margin-top: 0;
+  padding-block: 16px 0;
+  transition: var(--transition);
+  z-index: -1;
+  height: 48px;
+  box-sizing: border-box;
+}
+.onboardingContainer .steps.has-helptext {
+  padding-bottom: 0;
+}
+.onboardingContainer .steps .indicator {
+  width: 0;
+  height: 0;
+  margin-inline-end: 4px;
+  margin-inline-start: 4px;
+  background: var(--grey-subtitle-1);
+  border-radius: 5px;
+  border: 3px solid var(--in-content-button-text-color);
+  opacity: 0.35;
+  box-sizing: inherit;
+}
+.onboardingContainer .steps .indicator.current {
+  opacity: 1;
+  border-color: var(--checkbox-checked-bgcolor);
+}
+.onboardingContainer .steps .indicator.current:last-of-type:first-of-type {
+  opacity: 0;
+}
+.onboardingContainer .steps.progress-bar {
+  height: 6px;
+  padding-block: 0;
+  margin-block: 42px 0;
+  background-color: color-mix(in srgb, var(--in-content-button-text-color) 25%, transparent);
+  justify-content: start;
+  opacity: 1;
+  transition: none;
+}
+.onboardingContainer .steps.progress-bar .indicator {
+  width: 100%;
+  height: 100%;
+  margin-inline: -1px;
+  background-color: var(--checkbox-checked-bgcolor);
+  border: 0;
+  border-radius: 0;
+  opacity: 1;
+  transition: var(--progress-bar-transition);
+  translate: calc(var(--progress-bar-progress, 0%) - 100%);
+}
+.onboardingContainer .steps.progress-bar .indicator:dir(rtl) {
+  translate: calc(var(--progress-bar-progress, 0%) * -1 + 100%);
+}
+.onboardingContainer .primary,
+.onboardingContainer .secondary,
+.onboardingContainer .additional-cta {
+  font-size: 13px;
+  line-height: 16px;
+  padding: 11px 15px;
+  transition: var(--transition);
+}
+.onboardingContainer .primary.rtamo,
+.onboardingContainer .secondary.rtamo,
+.onboardingContainer .additional-cta.rtamo {
+  margin-top: 24px;
+}
+.onboardingContainer .secondary {
+  background-color: var(--in-content-button-background);
+  color: var(--in-content-button-text-color);
+}
+.onboardingContainer .noodle {
+  display: block;
+  background-repeat: no-repeat;
+  background-size: 100% 100%;
+  position: absolute;
+  transition: var(--transition);
+}
+.onboardingContainer .noodle:dir(rtl) {
+  scale: -1 1;
+}
+.onboardingContainer .outline-L {
+  background-image: url("chrome://activity-stream/content/data/content/assets/noodle-outline-L.svg");
+}
+.onboardingContainer .solid-L {
+  background-image: url("chrome://activity-stream/content/data/content/assets/noodle-solid-L.svg");
+  -moz-context-properties: fill;
+  fill: var(--in-content-page-background);
+  display: none;
+}
+.onboardingContainer .purple-C {
+  background-image: url("chrome://activity-stream/content/data/content/assets/noodle-C.svg");
+  -moz-context-properties: fill;
+  fill: #E7258C;
+}
+.onboardingContainer .orange-L {
+  background-image: url("chrome://activity-stream/content/data/content/assets/noodle-solid-L.svg");
+  -moz-context-properties: fill;
+  fill: #FFA437;
+}
+.onboardingContainer [pos=corner] {
+  min-width: 700px;
+}
+.onboardingContainer [pos=corner] .section-secondary {
+  display: flex;
+  flex-direction: column;
+  margin-inline-start: 6vw;
+}
+.onboardingContainer [pos=corner] .section-secondary .message-text {
+  flex-grow: 1;
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+}
+.onboardingContainer [pos=corner] .section-secondary .message-text .spacer-top {
+  flex: 1;
+}
+.onboardingContainer [pos=corner] .section-secondary .message-text .spacer-bottom {
+  flex: 1;
+}
+.onboardingContainer [pos=corner] .section-secondary .message-text h1 {
+  color: #FFF;
+  font-weight: bold;
+  font-size: clamp(48px, 7vw, 104px);
+  line-height: 1em;
+  margin: 0 6px;
+  max-width: 5em;
+  text-align: initial;
+  white-space: pre-wrap;
+  text-shadow: 0 4px 8px rgba(0, 0, 0, 0.35);
+}
+.onboardingContainer [pos=corner] .section-secondary .attrib-text {
+  height: 18px;
+  margin-bottom: 25px;
+  text-align: initial;
+  font-size: 12px;
+  line-height: 18px;
+  color: #F9F9FB;
+  text-shadow: 0 0 7px rgba(0, 0, 0, 0.6);
+  transition-delay: 0.5s;
+}
+.onboardingContainer [pos=corner] .section-main {
+  z-index: 1;
+}
+.onboardingContainer [pos=corner] .section-main .main-content {
+  background: transparent;
+  box-shadow: none;
+  display: flex;
+  position: absolute;
+  height: auto;
+  width: 350px;
+  bottom: 0;
+  inset-inline-end: 30px;
+  overflow: visible;
+  transition: var(--transition);
+}
+.onboardingContainer [pos=corner] .section-main .brand-logo {
+  margin-top: 0;
+  transition-delay: 1.2s;
+}
+.onboardingContainer [pos=corner] .section-main .primary,
+.onboardingContainer [pos=corner] .section-main .secondary-cta:not(.top) {
+  transition-delay: 1.7s;
+}
+.onboardingContainer [pos=corner] .section-main .secondary-cta.top {
+  transition-delay: 0.5s;
+}
+.onboardingContainer [pos=corner] .section-main .welcome-text {
+  transition-delay: 1.2s;
+}
+.onboardingContainer [pos=corner] .section-main .welcome-text h2 {
+  margin: 10px 6px;
+}
+.onboardingContainer [pos=corner] .solid-L {
+  display: block;
+  width: 1300px;
+  height: 1050px;
+  bottom: -390px;
+  inset-inline-end: -640px;
+  transform: rotate(-80deg);
+  transition-delay: 0.5s;
+}
+.onboardingContainer [pos=corner] .orange-L {
+  width: 466px;
+  height: 356px;
+  bottom: 270px;
+  inset-inline-end: -245px;
+  transition-delay: 0.8s;
+}
+.onboardingContainer [pos=corner] .purple-C {
+  width: 467px;
+  height: 382px;
+  bottom: -100px;
+  inset-inline-end: 125px;
+  transform: rotate(-75deg);
+  transition-delay: 0.8s;
+}
+.onboardingContainer .screen-1 .section-main {
+  z-index: 1;
+  margin: auto;
+}
+.onboardingContainer .screen-1 .outline-L {
+  width: 87px;
+  height: 80px;
+  transform: rotate(10deg) translate(-30%, 200%);
+  transition-delay: 0.4s;
+  z-index: 2;
+}
+.onboardingContainer .screen-1 .orange-L {
+  width: 550px;
+  height: 660px;
+  transform: rotate(-155deg) translate(11%, -18%);
+  transition-delay: 0.2s;
+}
+.onboardingContainer .screen-1 .purple-C {
+  width: 310px;
+  height: 260px;
+  transform: translate(-18%, -67%);
+}
+.onboardingContainer .screen-1 .yellow-circle {
+  width: 165px;
+  height: 165px;
+  border-radius: 50%;
+  transform: translate(230%, -5%);
+  background: #952BB9;
+  transition-delay: -0.2s;
+}
+.onboardingContainer .dialog-initial .brand-logo {
+  transition-delay: 0.6s;
+}
+.onboardingContainer .dialog-initial .welcome-text,
+.onboardingContainer .dialog-initial .multi-select-container {
+  transition-delay: 0.8s;
+}
+.onboardingContainer .dialog-initial .tiles-theme-section {
+  transition-delay: 0.9s;
+}
+.onboardingContainer .dialog-initial .primary,
+.onboardingContainer .dialog-initial .secondary,
+.onboardingContainer .dialog-initial .secondary-cta,
+.onboardingContainer .dialog-initial .steps,
+.onboardingContainer .dialog-initial .cta-link {
+  transition-delay: 1s;
+}
+.onboardingContainer .screen:not(.dialog-initial):not([pos=corner]) .tiles-theme-section,
+.onboardingContainer .screen:not(.dialog-initial):not([pos=corner]) .colorway-text {
+  transition-delay: 0.2s;
+}
+.onboardingContainer .screen:not(.dialog-initial):not([pos=corner]) .primary,
+.onboardingContainer .screen:not(.dialog-initial):not([pos=corner]) .secondary,
+.onboardingContainer .screen:not(.dialog-initial):not([pos=corner]) .secondary-cta,
+.onboardingContainer .screen:not(.dialog-initial):not([pos=corner]) .cta-link {
+  transition-delay: 0.4s;
+}
+.onboardingContainer .screen-2 .section-main {
+  z-index: 1;
+  margin: auto;
+}
+.onboardingContainer .screen-2 .outline-L {
+  width: 87px;
+  height: 80px;
+  transform: rotate(250deg) translate(-420%, 425%);
+  transition-delay: 0.2s;
+  z-index: 2;
+}
+.onboardingContainer .screen-2 .orange-L {
+  height: 800px;
+  width: 660px;
+  transform: rotate(35deg) translate(-10%, -7%);
+  transition-delay: -0.4s;
+}
+.onboardingContainer .screen-2 .purple-C {
+  width: 392px;
+  height: 394px;
+  transform: rotate(260deg) translate(-34%, -35%);
+  transition-delay: -0.2s;
+  fill: #952BB9;
+}
+.onboardingContainer .screen-2 .yellow-circle {
+  width: 165px;
+  height: 165px;
+  border-radius: 50%;
+  transform: translate(160%, 130%);
+  background: #E7258C;
+}
+.onboardingContainer.transition-in .noodle {
+  opacity: 0;
+  rotate: var(--rotate);
+  scale: var(--scale);
+}
+.onboardingContainer.transition-in [pos=corner] .brand-logo,
+.onboardingContainer.transition-in [pos=corner] .welcome-text,
+.onboardingContainer.transition-in [pos=corner] .primary,
+.onboardingContainer.transition-in [pos=corner] .checkbox-container,
+.onboardingContainer.transition-in [pos=corner] .secondary,
+.onboardingContainer.transition-in [pos=corner] .secondary-cta:not(.top),
+.onboardingContainer.transition-in [pos=corner] .message-text {
+  opacity: 0;
+  translate: 0 var(--translate);
+}
+.onboardingContainer.transition-in [pos=corner] .attrib-text,
+.onboardingContainer.transition-in [pos=corner] .secondary-cta.top {
+  opacity: 0;
+}
+.onboardingContainer.transition-in .dialog-initial .main-content {
+  translate: 0 calc(-2 * var(--translate));
+}
+.onboardingContainer.transition-in .dialog-initial .brand-logo,
+.onboardingContainer.transition-in .dialog-initial .steps {
+  opacity: 0;
+  translate: 0 calc(-1 * var(--translate));
+}
+.onboardingContainer.transition-in .screen:not(.dialog-initial):not([pos=corner]) .steps:not(.progress-bar) {
+  opacity: 0.2;
+}
+.onboardingContainer.transition-in .screen:not([pos=corner]) .welcome-text,
+.onboardingContainer.transition-in .screen:not([pos=corner]) .tiles-theme-section,
+.onboardingContainer.transition-in .screen:not([pos=corner]) .colorway-text,
+.onboardingContainer.transition-in .screen:not([pos=corner]) .primary,
+.onboardingContainer.transition-in .screen:not([pos=corner]) .checkbox-container,
+.onboardingContainer.transition-in .screen:not([pos=corner]) .secondary,
+.onboardingContainer.transition-in .screen:not([pos=corner]) .secondary-cta:not(.top),
+.onboardingContainer.transition-in .screen:not([pos=corner]) .cta-link {
+  opacity: 0;
+  translate: 0 calc(-1 * var(--translate));
+}
+.onboardingContainer.transition-out .noodle {
+  opacity: 0;
+  rotate: var(--rotate);
+  scale: var(--scale);
+  transition-delay: 0.2s;
+}
+.onboardingContainer.transition-out [pos=corner] .message-text {
+  opacity: 0;
+  translate: 0 var(--translate);
+}
+.onboardingContainer.transition-out [pos=corner] .main-content {
+  opacity: 0;
+  translate: 0 var(--translate);
+  transition-delay: 0.2s;
+}
+.onboardingContainer.transition-out [pos=corner] .solid-L {
+  transition-delay: 0.4s;
+}
+.onboardingContainer.transition-out [pos=corner] .attrib-text,
+.onboardingContainer.transition-out [pos=corner] .secondary-cta.top {
+  opacity: 0;
+  transition-delay: 0.2s;
+}
+.onboardingContainer.transition-out .screen:not(.dialog-last):not([pos=corner]) .main-content {
+  overflow: hidden;
+}
+.onboardingContainer.transition-out .screen:not(.dialog-last):not([pos=corner]) .welcome-text,
+.onboardingContainer.transition-out .screen:not(.dialog-last):not([pos=corner]) .multi-select-container {
+  opacity: 0;
+  translate: 0 var(--translate);
+  transition-delay: 0.1s;
+}
+.onboardingContainer.transition-out .screen:not(.dialog-last):not([pos=corner]) .tiles-theme-section,
+.onboardingContainer.transition-out .screen:not(.dialog-last):not([pos=corner]) .colorway-text {
+  opacity: 0;
+  translate: 0 var(--translate);
+  transition-delay: 0.2s;
+}
+.onboardingContainer.transition-out .screen:not(.dialog-last):not([pos=corner]) .primary,
+.onboardingContainer.transition-out .screen:not(.dialog-last):not([pos=corner]) .checkbox-container,
+.onboardingContainer.transition-out .screen:not(.dialog-last):not([pos=corner]) .secondary,
+.onboardingContainer.transition-out .screen:not(.dialog-last):not([pos=corner]) .secondary-cta:not(.top),
+.onboardingContainer.transition-out .screen:not(.dialog-last):not([pos=corner]) .cta-link {
+  opacity: 0;
+  translate: 0 var(--translate);
+  transition-delay: 0.3s;
+}
+.onboardingContainer.transition-out .screen:not(.dialog-last):not([pos=corner]) .steps:not(.progress-bar) {
+  opacity: 0.2;
+  transition-delay: 0.5s;
+}
+.onboardingContainer.transition-out .dialog-last .noodle {
+  transition-delay: 0s;
+}
+.onboardingContainer.transition-out .dialog-last .main-content {
+  opacity: 0;
+  translate: 0 calc(2 * var(--translate));
+  transition-delay: 0.4s;
+}
diff --git a/browser/components/newtab/aboutwelcome/content/aboutwelcome.html b/browser/components/newtab/aboutwelcome/content/aboutwelcome.html
new file mode 100644
index 0000000000..ffbb573232
--- /dev/null
+++ b/browser/components/newtab/aboutwelcome/content/aboutwelcome.html
@@ -0,0 +1,29 @@
+<!-- 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/. -->
+
+<!doctype html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <meta name="color-scheme" content="light dark">
+    <meta http-equiv="Content-Security-Policy" content="default-src 'none'; object-src 'none'; script-src resource: chrome:; media-src resource: chrome: https://assets.mozilla.net  https://www.mozilla.org; connect-src https:; img-src https: data: blob: chrome:; style-src resource: chrome:;">
+    <title data-l10n-id="onboarding-welcome-header"></title>
+    <link rel="icon" type="image/png" href="chrome://branding/content/icon32.png">
+    <link rel="stylesheet" href="chrome://global/skin/in-content/common.css">
+    <link rel="stylesheet" href="chrome://activity-stream/content/aboutwelcome/aboutwelcome.css">
+    <link rel="localization" href="branding/brand.ftl"/>
+    <link rel="localization" href="browser/branding/sync-brand.ftl"/>
+    <link rel="localization" href="browser/branding/brandings.ftl"/>
+    <link rel="localization" href="browser/newtab/onboarding.ftl"/>
+    <link rel="localization" href="browser/spotlight.ftl"/>
+  </head>
+  <body>
+    <div id="root" class="welcome-container" role="presentation">
+    </div>
+    <script src="resource://activity-stream/vendor/react.js"></script>
+    <script src="resource://activity-stream/vendor/react-dom.js"></script>
+    <script src="chrome://browser/content/contentTheme.js"></script>
+    <script src="resource://activity-stream/aboutwelcome/aboutwelcome.bundle.js"></script>
+  </body>
+</html>
diff --git a/browser/components/newtab/aboutwelcome/lib/AboutWelcomeDefaults.jsm b/browser/components/newtab/aboutwelcome/lib/AboutWelcomeDefaults.jsm
new file mode 100644
index 0000000000..45fc7480b1
--- /dev/null
+++ b/browser/components/newtab/aboutwelcome/lib/AboutWelcomeDefaults.jsm
@@ -0,0 +1,820 @@
+/* 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/. */
+"use strict";
+
+const EXPORTED_SYMBOLS = ["AboutWelcomeDefaults", "DEFAULT_WELCOME_CONTENT"];
+
+const { XPCOMUtils } = ChromeUtils.importESModule(
+  "resource://gre/modules/XPCOMUtils.sys.mjs"
+);
+const { AppConstants } = ChromeUtils.importESModule(
+  "resource://gre/modules/AppConstants.sys.mjs"
+);
+
+const lazy = {};
+
+ChromeUtils.defineESModuleGetters(lazy, {
+  BrowserUtils: "resource://gre/modules/BrowserUtils.sys.mjs",
+});
+
+XPCOMUtils.defineLazyModuleGetters(lazy, {
+  AddonRepository: "resource://gre/modules/addons/AddonRepository.jsm",
+  AttributionCode: "resource:///modules/AttributionCode.jsm",
+});
+
+XPCOMUtils.defineLazyPreferenceGetter(
+  lazy,
+  "usesFirefoxSync",
+  "services.sync.username"
+);
+
+XPCOMUtils.defineLazyPreferenceGetter(
+  lazy,
+  "mobileDevices",
+  "services.sync.clients.devices.mobile",
+  0
+);
+
+const DEFAULT_WELCOME_CONTENT = {
+  id: "DEFAULT_ABOUTWELCOME_PROTON",
+  template: "multistage",
+  // Allow tests to easily disable transitions.
+  transitions: Services.prefs.getBoolPref(
+    "browser.aboutwelcome.transitions",
+    true
+  ),
+  backdrop:
+    "#212121 url('chrome://activity-stream/content/data/content/assets/proton-bkg.avif') center/cover no-repeat fixed",
+  screens: [
+    {
+      id: "AW_PIN_FIREFOX",
+      content: {
+        position: "corner",
+        logo: {},
+        title: {
+          string_id: "mr1-onboarding-pin-header",
+        },
+        hero_text: {
+          string_id: "mr1-welcome-screen-hero-text",
+        },
+        help_text: {
+          string_id: "mr1-onboarding-welcome-image-caption",
+        },
+        has_noodles: true,
+        primary_button: {
+          label: {
+            string_id: "mr1-onboarding-pin-primary-button-label",
+          },
+          action: {
+            navigate: true,
+            type: "PIN_FIREFOX_TO_TASKBAR",
+          },
+        },
+        secondary_button: {
+          label: {
+            string_id: "mr1-onboarding-set-default-secondary-button-label",
+          },
+          action: {
+            navigate: true,
+          },
+        },
+        secondary_button_top: {
+          label: {
+            string_id: "mr1-onboarding-sign-in-button-label",
+          },
+          action: {
+            data: {
+              entrypoint: "activity-stream-firstrun",
+            },
+            type: "SHOW_FIREFOX_ACCOUNTS",
+            addFlowParams: true,
+          },
+        },
+      },
+    },
+    {
+      id: "AW_LANGUAGE_MISMATCH",
+      content: {
+        logo: {},
+        title: { string_id: "onboarding-live-language-header" },
+        has_noodles: true,
+        languageSwitcher: {
+          downloading: {
+            string_id: "onboarding-live-language-button-label-downloading",
+          },
+          cancel: {
+            string_id: "onboarding-live-language-secondary-cancel-download",
+          },
+          waiting: { string_id: "onboarding-live-language-waiting-button" },
+          skip: { string_id: "onboarding-live-language-skip-button-label" },
+          action: {
+            navigate: true,
+          },
+        },
+      },
+    },
+    {
+      id: "AW_SET_DEFAULT",
+      content: {
+        logo: {},
+        title: {
+          string_id: "mr1-onboarding-default-header",
+        },
+        subtitle: {
+          string_id: "mr1-onboarding-default-subtitle",
+        },
+        has_noodles: true,
+        primary_button: {
+          label: {
+            string_id: "mr1-onboarding-default-primary-button-label",
+          },
+          action: {
+            navigate: true,
+            type: "SET_DEFAULT_BROWSER",
+          },
+        },
+        secondary_button: {
+          label: {
+            string_id: "mr1-onboarding-set-default-secondary-button-label",
+          },
+          action: {
+            navigate: true,
+          },
+        },
+      },
+    },
+    {
+      id: "AW_IMPORT_SETTINGS",
+      content: {
+        logo: {},
+        title: {
+          string_id: "mr1-onboarding-import-header",
+        },
+        subtitle: {
+          string_id: "mr1-onboarding-import-subtitle",
+        },
+        has_noodles: true,
+        primary_button: {
+          label: {
+            string_id:
+              "mr1-onboarding-import-primary-button-label-no-attribution",
+          },
+          action: {
+            type: "SHOW_MIGRATION_WIZARD",
+            data: {},
+            navigate: true,
+          },
+        },
+        secondary_button: {
+          label: {
+            string_id: "mr1-onboarding-import-secondary-button-label",
+          },
+          action: {
+            navigate: true,
+          },
+        },
+      },
+    },
+    {
+      id: "AW_CHOOSE_THEME",
+      content: {
+        logo: {},
+        title: {
+          string_id: "mr1-onboarding-theme-header",
+        },
+        subtitle: {
+          string_id: "mr1-onboarding-theme-subtitle",
+        },
+        has_noodles: true,
+        tiles: {
+          type: "theme",
+          action: {
+            theme: "<event>",
+          },
+          data: [
+            {
+              theme: "automatic",
+              label: {
+                string_id: "mr1-onboarding-theme-label-system",
+              },
+              tooltip: {
+                string_id: "mr1-onboarding-theme-tooltip-system",
+              },
+              description: {
+                string_id: "mr1-onboarding-theme-description-system",
+              },
+            },
+            {
+              theme: "light",
+              label: {
+                string_id: "mr1-onboarding-theme-label-light",
+              },
+              tooltip: {
+                string_id: "mr1-onboarding-theme-tooltip-light",
+              },
+              description: {
+                string_id: "mr1-onboarding-theme-description-light",
+              },
+            },
+            {
+              theme: "dark",
+              label: {
+                string_id: "mr1-onboarding-theme-label-dark",
+              },
+              tooltip: {
+                string_id: "mr1-onboarding-theme-tooltip-dark",
+              },
+              description: {
+                string_id: "mr1-onboarding-theme-description-dark",
+              },
+            },
+            {
+              theme: "alpenglow",
+              label: {
+                string_id: "mr1-onboarding-theme-label-alpenglow",
+              },
+              tooltip: {
+                string_id: "mr1-onboarding-theme-tooltip-alpenglow",
+              },
+              description: {
+                string_id: "mr1-onboarding-theme-description-alpenglow",
+              },
+            },
+          ],
+        },
+        primary_button: {
+          label: {
+            string_id: "onboarding-theme-primary-button-label",
+          },
+          action: {
+            navigate: true,
+          },
+        },
+        secondary_button: {
+          label: {
+            string_id: "mr1-onboarding-theme-secondary-button-label",
+          },
+          action: {
+            theme: "automatic",
+            navigate: true,
+          },
+        },
+      },
+    },
+  ],
+};
+
+// Message to be updated based on finalized MR designs
+const MR_ABOUT_WELCOME_DEFAULT = {
+  id: "MR_WELCOME_DEFAULT",
+  template: "multistage",
+  // Allow tests to easily disable transitions.
+  transitions: Services.prefs.getBoolPref(
+    "browser.aboutwelcome.transitions",
+    true
+  ),
+  backdrop:
+    "var(--mr-welcome-background-color) var(--mr-welcome-background-gradient)",
+  screens: [
+    {
+      id: "AW_PIN_FIREFOX",
+      content: {
+        position: "split",
+        split_narrow_bkg_position: "-155px",
+        image_alt_text: {
+          string_id: "mr2022-onboarding-pin-image-alt",
+        },
+        background:
+          "url('chrome://activity-stream/content/data/content/assets/mr-pintaskbar.svg') var(--mr-secondary-position) no-repeat var(--mr-screen-background-color)",
+        progress_bar: true,
+        logo: {},
+        title: {
+          string_id: "mr2022-onboarding-welcome-pin-header",
+        },
+        subtitle: {
+          string_id: "mr2022-onboarding-welcome-pin-subtitle",
+        },
+        primary_button: {
+          label: {
+            string_id: "mr2022-onboarding-pin-primary-button-label",
+          },
+          action: {
+            navigate: true,
+            type: "PIN_FIREFOX_TO_TASKBAR",
+          },
+        },
+        secondary_button: {
+          label: {
+            string_id: "mr2022-onboarding-secondary-skip-button-label",
+          },
+          action: {
+            navigate: true,
+          },
+          has_arrow_icon: true,
+        },
+        secondary_button_top: {
+          label: {
+            string_id: "mr1-onboarding-sign-in-button-label",
+          },
+          action: {
+            data: {
+              entrypoint: "activity-stream-firstrun",
+              where: "tab",
+            },
+            type: "SHOW_FIREFOX_ACCOUNTS",
+            addFlowParams: true,
+          },
+        },
+      },
+    },
+    {
+      id: "AW_LANGUAGE_MISMATCH",
+      content: {
+        position: "split",
+        background: "var(--mr-screen-background-color)",
+        progress_bar: true,
+        logo: {},
+        title: {
+          string_id: "mr2022-onboarding-live-language-text",
+        },
+        subtitle: {
+          string_id: "mr2022-language-mismatch-subtitle",
+        },
+        hero_text: {
+          string_id: "mr2022-onboarding-live-language-text",
+          useLangPack: true,
+        },
+        languageSwitcher: {
+          downloading: {
+            string_id: "onboarding-live-language-button-label-downloading",
+          },
+          cancel: {
+            string_id: "onboarding-live-language-secondary-cancel-download",
+          },
+          waiting: { string_id: "onboarding-live-language-waiting-button" },
+          skip: { string_id: "mr2022-onboarding-secondary-skip-button-label" },
+          action: {
+            navigate: true,
+          },
+          switch: {
+            string_id: "mr2022-onboarding-live-language-switch-to",
+            useLangPack: true,
+          },
+          continue: {
+            string_id: "mr2022-onboarding-live-language-continue-in",
+          },
+        },
+      },
+    },
+    {
+      id: "AW_SET_DEFAULT",
+      content: {
+        position: "split",
+        split_narrow_bkg_position: "-60px",
+        image_alt_text: {
+          string_id: "mr2022-onboarding-default-image-alt",
+        },
+        background:
+          "url('chrome://activity-stream/content/data/content/assets/mr-settodefault.svg') var(--mr-secondary-position) no-repeat var(--mr-screen-background-color)",
+        progress_bar: true,
+        logo: {},
+        title: {
+          string_id: "mr2022-onboarding-set-default-title",
+        },
+        subtitle: {
+          string_id: "mr2022-onboarding-set-default-subtitle",
+        },
+        primary_button: {
+          label: {
+            string_id: "mr2022-onboarding-set-default-primary-button-label",
+          },
+          action: {
+            navigate: true,
+            type: "SET_DEFAULT_BROWSER",
+          },
+        },
+        secondary_button: {
+          label: {
+            string_id: "mr2022-onboarding-secondary-skip-button-label",
+          },
+          action: {
+            navigate: true,
+          },
+          has_arrow_icon: true,
+        },
+      },
+    },
+    {
+      id: "AW_IMPORT_SETTINGS",
+      content: {
+        position: "split",
+        split_narrow_bkg_position: "-42px",
+        image_alt_text: {
+          string_id: "mr2022-onboarding-import-image-alt",
+        },
+        background:
+          "url('chrome://activity-stream/content/data/content/assets/mr-import.svg') var(--mr-secondary-position) no-repeat var(--mr-screen-background-color)",
+        progress_bar: true,
+        logo: {},
+        title: {
+          string_id: "mr2022-onboarding-import-header",
+        },
+        subtitle: {
+          string_id: "mr2022-onboarding-import-subtitle",
+        },
+        primary_button: {
+          label: {
+            string_id:
+              "mr2022-onboarding-import-primary-button-label-no-attribution",
+          },
+          action: {
+            type: "SHOW_MIGRATION_WIZARD",
+            data: {},
+            navigate: true,
+          },
+        },
+        secondary_button: {
+          label: {
+            string_id: "mr2022-onboarding-secondary-skip-button-label",
+          },
+          action: {
+            navigate: true,
+          },
+          has_arrow_icon: true,
+        },
+      },
+    },
+    {
+      id: "AW_MOBILE_DOWNLOAD",
+      content: {
+        position: "split",
+        split_narrow_bkg_position: "-160px",
+        image_alt_text: {
+          string_id: "mr2022-onboarding-mobile-download-image-alt",
+        },
+        background:
+          "url('chrome://activity-stream/content/data/content/assets/mr-mobilecrosspromo.svg') var(--mr-secondary-position) no-repeat var(--mr-screen-background-color)",
+        progress_bar: true,
+        logo: {},
+        title: {
+          string_id: "mr2022-onboarding-mobile-download-title",
+        },
+        subtitle: {
+          string_id: "mr2022-onboarding-mobile-download-subtitle",
+        },
+        hero_image: {
+          url:
+            "chrome://activity-stream/content/data/content/assets/mobile-download-qr-new-user.svg",
+        },
+        cta_paragraph: {
+          text: {
+            string_id: "mr2022-onboarding-mobile-download-cta-text",
+            string_name: "download-label",
+          },
+          action: {
+            type: "OPEN_URL",
+            data: {
+              args:
+                "https://www.mozilla.org/firefox/mobile/get-app/?utm_medium=firefox-desktop&utm_source=onboarding-modal&utm_campaign=mr2022&utm_content=new-global",
+              where: "tab",
+            },
+          },
+        },
+        secondary_button: {
+          label: {
+            string_id: "mr2022-onboarding-secondary-skip-button-label",
+          },
+          action: {
+            navigate: true,
+          },
+          has_arrow_icon: true,
+        },
+      },
+    },
+    {
+      id: "AW_GRATITUDE",
+      content: {
+        position: "split",
+        split_narrow_bkg_position: "-228px",
+        image_alt_text: {
+          string_id: "mr2022-onboarding-gratitude-image-alt",
+        },
+        background:
+          "url('chrome://activity-stream/content/data/content/assets/mr-gratitude.svg') var(--mr-secondary-position) no-repeat var(--mr-screen-background-color)",
+        progress_bar: true,
+        logo: {},
+        title: {
+          string_id: "mr2022-onboarding-gratitude-title",
+        },
+        subtitle: {
+          string_id: "mr2022-onboarding-gratitude-subtitle",
+        },
+        primary_button: {
+          label: {
+            string_id: "mr2022-onboarding-gratitude-primary-button-label",
+          },
+          action: {
+            type: "OPEN_FIREFOX_VIEW",
+            navigate: true,
+          },
+        },
+        secondary_button: {
+          label: {
+            string_id: "mr2022-onboarding-gratitude-secondary-button-label",
+          },
+          action: {
+            navigate: true,
+          },
+        },
+      },
+    },
+  ],
+};
+
+async function getAddonFromRepository(data) {
+  const [addonInfo] = await lazy.AddonRepository.getAddonsByIDs([data]);
+  if (addonInfo.sourceURI.scheme !== "https") {
+    return null;
+  }
+
+  return {
+    name: addonInfo.name,
+    url: addonInfo.sourceURI.spec,
+    iconURL: addonInfo.icons["64"] || addonInfo.icons["32"],
+    type: addonInfo.type,
+    screenshots: addonInfo.screenshots,
+  };
+}
+
+async function getAddonInfo(attrbObj) {
+  let { content, source } = attrbObj;
+  try {
+    if (!content || source !== "addons.mozilla.org") {
+      return null;
+    }
+    // Attribution data can be double encoded
+    while (content.includes("%")) {
+      try {
+        const result = decodeURIComponent(content);
+        if (result === content) {
+          break;
+        }
+        content = result;
+      } catch (e) {
+        break;
+      }
+    }
+    // return_to_amo embeds the addon id in the content
+    // param, prefixed with "rta:".  Translating that
+    // happens in AddonRepository, however we can avoid
+    // an API call if we check up front here.
+    if (content.startsWith("rta:")) {
+      return await getAddonFromRepository(content);
+    }
+  } catch (e) {
+    console.error("Failed to get the latest add-on version for Return to AMO");
+  }
+  return null;
+}
+
+async function getAttributionContent() {
+  let attribution = await lazy.AttributionCode.getAttrDataAsync();
+  if (attribution?.source === "addons.mozilla.org") {
+    let addonInfo = await getAddonInfo(attribution);
+    if (addonInfo) {
+      return {
+        ...addonInfo,
+        template: "return_to_amo",
+      };
+    }
+  }
+  if (attribution?.ua) {
+    return {
+      ua: decodeURIComponent(attribution.ua),
+    };
+  }
+  return null;
+}
+
+// Return default multistage welcome content
+function getDefaults(templateMR = false) {
+  const defaultContent = templateMR
+    ? MR_ABOUT_WELCOME_DEFAULT
+    : DEFAULT_WELCOME_CONTENT;
+  return Cu.cloneInto(defaultContent, {});
+}
+
+let gSourceL10n = null;
+
+// Localize Firefox download source from user agent attribution to show inside
+// import primary button label such as 'Import from <localized browser name>'.
+// no firefox as import wizard doesn't show it
+const allowedUAs = ["chrome", "edge", "ie"];
+function getLocalizedUA(ua) {
+  if (!gSourceL10n) {
+    gSourceL10n = new Localization(["browser/migration.ftl"]);
+  }
+  if (allowedUAs.includes(ua)) {
+    return gSourceL10n.formatValue(`source-name-${ua.toLowerCase()}`);
+  }
+  return null;
+}
+
+// Helper to find screens and remove them where applicable.
+function removeScreens(check, screens) {
+  for (let i = 0; i < screens?.length; i++) {
+    if (check(screens[i])) {
+      screens.splice(i--, 1);
+    }
+  }
+}
+
+// Function to evalute the appropriate string for the welcome screen button label
+function evaluateWelcomeScreenButtonLabel(removeDefault, content) {
+  if (content.templateMR) {
+    return removeDefault
+      ? "mr2022-onboarding-get-started-primary-button-label"
+      : "mr2022-onboarding-set-default-primary-button-label";
+  }
+  return removeDefault
+    ? "mr1-onboarding-get-started-primary-button-label"
+    : "mr1-onboarding-set-default-only-primary-button-label";
+}
+
+function prepareMobileDownload(screens) {
+  let mobileContent = screens.find(screen => screen.id === "AW_MOBILE_DOWNLOAD")
+    ?.content;
+
+  if (!mobileContent) {
+    return;
+  }
+  if (!lazy.BrowserUtils.sendToDeviceEmailsSupported()) {
+    // If send to device emails are not supported for a user's locale,
+    // remove the send to device link and update the screen text
+    delete mobileContent.cta_paragraph.action;
+    mobileContent.cta_paragraph.text = {
+      string_id: "mr2022-onboarding-no-mobile-download-cta-text",
+    };
+  }
+  // Update CN specific QRCode url
+  if (AppConstants.isChinaRepack()) {
+    mobileContent.hero_image.url = `${mobileContent.hero_image.url.slice(
+      0,
+      mobileContent.hero_image.url.indexOf(".svg")
+    )}-cn.svg`;
+  }
+}
+
+function prepareMRContent(content) {
+  // Expand with logic for finalized MR designs
+  const { screens } = content;
+
+  // Do not show the screen to users who are already using firefox sync
+  // and syncing to a mobile device
+  if (lazy.usesFirefoxSync && lazy.mobileDevices > 0) {
+    removeScreens(screen => screen.id === "AW_MOBILE_DOWNLOAD", screens);
+  } else {
+    prepareMobileDownload(screens);
+  }
+
+  return content;
+}
+
+async function prepareContentForReact(content) {
+  const { screens } = content;
+
+  if (content?.template === "return_to_amo") {
+    return content;
+  }
+
+  // Change content for Windows 7 because non-light themes aren't quite right.
+  if (AppConstants.isPlatformAndVersionAtMost("win", "6.1")) {
+    removeScreens(
+      screen => ["theme"].includes(screen.content?.tiles?.type),
+      screens
+    );
+  }
+
+  // Set the primary import button source based on attribution.
+  if (content?.ua) {
+    // If available, add the browser source to action data
+    // and localized browser string args to primary button label
+    const { label, action } =
+      content?.screens?.find(
+        screen =>
+          screen?.content?.primary_button?.action?.type ===
+          "SHOW_MIGRATION_WIZARD"
+      )?.content?.primary_button ?? {};
+
+    if (action) {
+      action.data = { ...action.data, source: content.ua };
+    }
+
+    let browserStr = await getLocalizedUA(content.ua);
+
+    if (label?.string_id) {
+      label.string_id = browserStr
+        ? "mr1-onboarding-import-primary-button-label-attribution"
+        : "mr1-onboarding-import-primary-button-label-no-attribution";
+
+      label.args = browserStr ? { previous: browserStr } : {};
+    }
+  }
+
+  // If already pinned, convert "pin" screen to "welcome" with desired action.
+  let removeDefault = !content.needDefault;
+  if (!content.needPin) {
+    const pinScreen = content.screens?.find(screen =>
+      screen.id?.startsWith("AW_PIN_FIREFOX")
+    );
+    if (pinScreen?.content) {
+      pinScreen.id = removeDefault ? "AW_GET_STARTED" : "AW_ONLY_DEFAULT";
+      pinScreen.content.title = {
+        string_id: content.templateMR
+          ? "mr2022-onboarding-welcome-pin-header"
+          : "mr1-onboarding-welcome-header",
+      };
+
+      if (content.templateMR) {
+        pinScreen.content.subtitle = {
+          string_id: removeDefault
+            ? "mr2022-onboarding-get-started-primary-subtitle"
+            : "mr2022-onboarding-set-default-only-subtitle",
+        };
+      }
+      pinScreen.content.primary_button = {
+        label: {
+          string_id: evaluateWelcomeScreenButtonLabel(removeDefault, content),
+        },
+        action: {
+          navigate: true,
+        },
+      };
+
+      // Get started content will navigate without action, so remove "Not now."
+      if (removeDefault) {
+        if (!content.templateMR) delete pinScreen.content.secondary_button;
+      } else {
+        // The "pin" screen will now handle "default" so remove other "default."
+        pinScreen.content.primary_button.action.type = "SET_DEFAULT_BROWSER";
+        removeDefault = true;
+      }
+    }
+  }
+  if (removeDefault) {
+    removeScreens(screen => screen.id?.startsWith("AW_SET_DEFAULT"), screens);
+  }
+
+  // Remove Firefox Accounts related UI and prevent related metrics.
+  if (!Services.prefs.getBoolPref("identity.fxaccounts.enabled", false)) {
+    delete content.screens?.find(
+      screen =>
+        screen.content?.secondary_button_top?.action?.type ===
+        "SHOW_FIREFOX_ACCOUNTS"
+    )?.content.secondary_button_top;
+    content.skipFxA = true;
+  }
+
+  // Remove the English-only image caption.
+  if (Services.locale.appLocaleAsBCP47.split("-")[0] !== "en") {
+    delete content.screens?.find(
+      screen => screen.content?.help_text?.deleteIfNotEn
+    )?.content.help_text;
+  }
+
+  let shouldRemoveLanguageMismatchScreen = true;
+  if (content.languageMismatchEnabled) {
+    const screen = content?.screens?.find(s => s.id === "AW_LANGUAGE_MISMATCH");
+    if (screen && content.appAndSystemLocaleInfo.canLiveReload) {
+      // Add the display names for the OS and Firefox languages, like "American English".
+      function addMessageArgs(obj) {
+        for (const value of Object.values(obj)) {
+          if (value?.string_id) {
+            value.args = content.appAndSystemLocaleInfo.displayNames;
+          }
+        }
+      }
+
+      addMessageArgs(screen.content.languageSwitcher);
+      addMessageArgs(screen.content);
+      shouldRemoveLanguageMismatchScreen = false;
+    }
+  }
+
+  if (shouldRemoveLanguageMismatchScreen) {
+    removeScreens(screen => screen.id === "AW_LANGUAGE_MISMATCH", screens);
+  }
+
+  if (content.templateMR) {
+    return prepareMRContent(content);
+  }
+
+  return content;
+}
+
+const AboutWelcomeDefaults = {
+  prepareContentForReact,
+  getDefaults,
+  getAttributionContent,
+};
diff --git a/browser/components/newtab/aboutwelcome/lib/AboutWelcomeTelemetry.jsm b/browser/components/newtab/aboutwelcome/lib/AboutWelcomeTelemetry.jsm
new file mode 100644
index 0000000000..7725ae6c22
--- /dev/null
+++ b/browser/components/newtab/aboutwelcome/lib/AboutWelcomeTelemetry.jsm
@@ -0,0 +1,116 @@
+/* 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/. */
+"use strict";
+
+const EXPORTED_SYMBOLS = ["AboutWelcomeTelemetry"];
+const { XPCOMUtils } = ChromeUtils.importESModule(
+  "resource://gre/modules/XPCOMUtils.sys.mjs"
+);
+
+const lazy = {};
+
+ChromeUtils.defineESModuleGetters(lazy, {
+  ClientID: "resource://gre/modules/ClientID.sys.mjs",
+  TelemetrySession: "resource://gre/modules/TelemetrySession.sys.mjs",
+});
+
+XPCOMUtils.defineLazyModuleGetters(lazy, {
+  PingCentre: "resource:///modules/PingCentre.jsm",
+  AttributionCode: "resource:///modules/AttributionCode.jsm",
+});
+XPCOMUtils.defineLazyPreferenceGetter(
+  lazy,
+  "structuredIngestionEndpointBase",
+  "browser.newtabpage.activity-stream.telemetry.structuredIngestion.endpoint",
+  ""
+);
+XPCOMUtils.defineLazyGetter(lazy, "telemetryClientId", () =>
+  lazy.ClientID.getClientID()
+);
+XPCOMUtils.defineLazyGetter(
+  lazy,
+  "browserSessionId",
+  () => lazy.TelemetrySession.getMetadata("").sessionId
+);
+const TELEMETRY_TOPIC = "about:welcome";
+const PING_TYPE = "onboarding";
+const PING_VERSION = "1";
+const STRUCTURED_INGESTION_NAMESPACE_MS = "messaging-system";
+
+class AboutWelcomeTelemetry {
+  constructor() {
+    XPCOMUtils.defineLazyPreferenceGetter(
+      this,
+      "telemetryEnabled",
+      "browser.newtabpage.activity-stream.telemetry",
+      false
+    );
+  }
+
+  /**
+   * Lazily initialize PingCentre for Activity Stream to send pings
+   */
+  get pingCentre() {
+    Object.defineProperty(this, "pingCentre", {
+      value: new lazy.PingCentre({ topic: TELEMETRY_TOPIC }),
+    });
+    return this.pingCentre;
+  }
+
+  _generateStructuredIngestionEndpoint() {
+    const uuid = Services.uuid.generateUUID().toString();
+    // Structured Ingestion does not support the UUID generated by Services.uuid,
+    // because it contains leading and trailing braces. Need to trim them first.
+    const docID = uuid.slice(1, -1);
+    const extension = `${STRUCTURED_INGESTION_NAMESPACE_MS}/${PING_TYPE}/${PING_VERSION}/${docID}`;
+    return `${lazy.structuredIngestionEndpointBase}/${extension}`;
+  }
+
+  /**
+   * Attach browser attribution data to a ping payload.
+   *
+   * It intentionally queries the *cached* attribution data other than calling
+   * `getAttrDataAsync()` in order to minimize the overhead here.
+   * For the same reason, we are not querying the attribution data from
+   * `TelemetryEnvironment.currentEnvironment.settings`.
+   *
+   * In practice, it's very likely that the attribution data is already read
+   * and cached at some point by `AboutWelcomeParent`, so it should be able to
+   * read the cached results for the most if not all of the pings.
+   */
+  _maybeAttachAttribution(ping) {
+    const attribution = lazy.AttributionCode.getCachedAttributionData();
+    if (attribution && Object.keys(attribution).length) {
+      ping.attribution = attribution;
+    }
+    return ping;
+  }
+
+  async _createPing(event) {
+    if (event.event_context && typeof event.event_context === "object") {
+      event.event_context = JSON.stringify(event.event_context);
+    }
+    let ping = {
+      ...event,
+      addon_version: Services.appinfo.appBuildID,
+      locale: Services.locale.appLocaleAsBCP47,
+      client_id: await lazy.telemetryClientId,
+      browser_session_id: lazy.browserSessionId,
+    };
+
+    return this._maybeAttachAttribution(ping);
+  }
+
+  async sendTelemetry(event) {
+    if (!this.telemetryEnabled) {
+      return;
+    }
+
+    const ping = await this._createPing(event);
+    this.pingCentre.sendStructuredIngestionPing(
+      ping,
+      this._generateStructuredIngestionEndpoint()
+    );
+  }
+}