Merging upstream version 127.0.

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

48 files changed, 460 insertions, 265 deletions

diff --git a/browser/components/search/test/browser/telemetry/browser.toml b/browser/components/search/test/browser/telemetry/browser.toml
index 5e42a9187d..c8cb201324 100644
--- a/browser/components/search/test/browser/telemetry/browser.toml
+++ b/browser/components/search/test/browser/telemetry/browser.toml
@@ -6,9 +6,6 @@ prefs = ["browser.search.log=true"]
 ["browser_search_glean_serp_event_telemetry_categorization_enabled_by_nimbus_variable.js"]
 support-files = ["searchTelemetryDomainCategorizationReporting.html"]
 
-["browser_search_glean_serp_event_telemetry_enabled_by_nimbus_variable.js"]
-support-files = ["searchTelemetryAd.html"]
-
 ["browser_search_telemetry_abandonment.js"]
 support-files = [
   "searchTelemetry.html",
@@ -175,6 +172,9 @@ support-files = [
 ["browser_search_telemetry_shopping.js"]
 support-files = ["searchTelemetryAd_shopping.html"]
 
+["browser_search_telemetry_signed_in_to_account.js"]
+support-files = ["searchTelemetry.html"]
+
 ["browser_search_telemetry_sources.js"]
 support-files = ["searchTelemetry.html", "searchTelemetryAd.html"]
 
diff --git a/browser/components/search/test/browser/telemetry/browser_search_glean_serp_event_telemetry_categorization_enabled_by_nimbus_variable.js b/browser/components/search/test/browser/telemetry/browser_search_glean_serp_event_telemetry_categorization_enabled_by_nimbus_variable.js
index 8e9db64fae..d6ff3e2ed9 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_glean_serp_event_telemetry_categorization_enabled_by_nimbus_variable.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_glean_serp_event_telemetry_categorization_enabled_by_nimbus_variable.js
@@ -162,6 +162,8 @@ add_task(async function test_enable_experiment_when_pref_is_not_enabled() {
       tagged: "true",
       is_shopping_page: "false",
       num_ads_clicked: "0",
+      num_ads_hidden: "0",
+      num_ads_loaded: "2",
       num_ads_visible: "2",
     },
   ]);
diff --git a/browser/components/search/test/browser/telemetry/browser_search_glean_serp_event_telemetry_enabled_by_nimbus_variable.js b/browser/components/search/test/browser/telemetry/browser_search_glean_serp_event_telemetry_enabled_by_nimbus_variable.js
deleted file mode 100644
index 096178499b..0000000000
--- a/browser/components/search/test/browser/telemetry/browser_search_glean_serp_event_telemetry_enabled_by_nimbus_variable.js
+++ /dev/null
@@ -1,167 +0,0 @@
-/* Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/publicdomain/zero/1.0/ */
-
-// Test to verify we can toggle the Glean SERP event telemetry feature via a
-// Nimbus variable.
-
-const lazy = {};
-
-const TELEMETRY_PREF = "browser.search.serpEventTelemetry.enabled";
-
-ChromeUtils.defineESModuleGetters(lazy, {
-  ExperimentAPI: "resource://nimbus/ExperimentAPI.sys.mjs",
-  ExperimentFakes: "resource://testing-common/NimbusTestUtils.sys.mjs",
-});
-
-XPCOMUtils.defineLazyPreferenceGetter(
-  lazy,
-  "serpEventsEnabled",
-  TELEMETRY_PREF,
-  false
-);
-
-const TEST_PROVIDER_INFO = [
-  {
-    telemetryId: "example",
-    searchPageRegexp:
-      /^https:\/\/example.org\/browser\/browser\/components\/search\/test\/browser\/telemetry\/searchTelemetry(?:Ad)?.html/,
-    queryParamNames: ["s"],
-    codeParamName: "abc",
-    taggedCodes: ["ff"],
-    followOnParamNames: ["a"],
-    extraAdServersRegexps: [/^https:\/\/example\.com\/ad2?/],
-    components: [
-      {
-        type: SearchSERPTelemetryUtils.COMPONENTS.AD_LINK,
-        default: true,
-      },
-    ],
-  },
-];
-
-async function verifyEventsRecorded() {
-  resetTelemetry();
-
-  let tab = await BrowserTestUtils.openNewForegroundTab(
-    gBrowser,
-    getSERPUrl("searchTelemetryAd.html")
-  );
-  await waitForPageWithAdImpressions();
-
-  assertSERPTelemetry([
-    {
-      impression: {
-        provider: "example",
-        tagged: "true",
-        partner_code: "ff",
-        source: "unknown",
-        is_shopping_page: "false",
-        is_private: "false",
-        shopping_tab_displayed: "false",
-      },
-      adImpressions: [
-        {
-          component: SearchSERPTelemetryUtils.COMPONENTS.AD_LINK,
-          ads_loaded: "2",
-          ads_visible: "2",
-          ads_hidden: "0",
-        },
-      ],
-    },
-  ]);
-
-  BrowserTestUtils.removeTab(tab);
-
-  assertSERPTelemetry([
-    {
-      impression: {
-        provider: "example",
-        tagged: "true",
-        partner_code: "ff",
-        source: "unknown",
-        is_shopping_page: "false",
-        is_private: "false",
-        shopping_tab_displayed: "false",
-      },
-      adImpressions: [
-        {
-          component: SearchSERPTelemetryUtils.COMPONENTS.AD_LINK,
-          ads_loaded: "2",
-          ads_visible: "2",
-          ads_hidden: "0",
-        },
-      ],
-      abandonment: {
-        reason: SearchSERPTelemetryUtils.ABANDONMENTS.TAB_CLOSE,
-      },
-    },
-  ]);
-}
-
-add_setup(async function () {
-  SearchSERPTelemetry.overrideSearchTelemetryForTests(TEST_PROVIDER_INFO);
-  await waitForIdle();
-
-  // Enable local telemetry recording for the duration of the tests.
-  let oldCanRecord = Services.telemetry.canRecordExtended;
-  Services.telemetry.canRecordExtended = true;
-
-  registerCleanupFunction(async () => {
-    SearchSERPTelemetry.overrideSearchTelemetryForTests();
-    Services.telemetry.canRecordExtended = oldCanRecord;
-    await SpecialPowers.popPrefEnv();
-    resetTelemetry();
-  });
-});
-
-add_task(async function test_enable_experiment_when_pref_is_not_enabled() {
-  let prefBranch = Services.prefs.getDefaultBranch("");
-  let originalPrefValue = prefBranch.getBoolPref(TELEMETRY_PREF);
-
-  // Ensure the build being tested has the preference value as false.
-  // Changing the preference in the test must be done on the default branch
-  // because in the telemetry code, we're referencing the preference directly
-  // instead of through NimbusFeatures. Enrolling in an experiment will change
-  // the default branch, and not overwrite the user branch.
-  prefBranch.setBoolPref(TELEMETRY_PREF, false);
-
-  Assert.equal(
-    lazy.serpEventsEnabled,
-    false,
-    "serpEventsEnabled should be false when not enrolled in experiment."
-  );
-
-  await lazy.ExperimentAPI.ready();
-
-  let doExperimentCleanup = await lazy.ExperimentFakes.enrollWithFeatureConfig(
-    {
-      featureId: NimbusFeatures.search.featureId,
-      value: {
-        serpEventTelemetryEnabled: true,
-      },
-    },
-    { isRollout: true }
-  );
-
-  Assert.equal(
-    lazy.serpEventsEnabled,
-    true,
-    "serpEventsEnabled should be true when enrolled in experiment."
-  );
-
-  // To ensure Nimbus set "browser.search.serpEventTelemetry.enabled" to true,
-  // we test that an impression, ad_impression and abandonment event are
-  // recorded correctly.
-  await verifyEventsRecorded();
-
-  await doExperimentCleanup();
-
-  Assert.equal(
-    lazy.serpEventsEnabled,
-    false,
-    "serpEventsEnabled should be false after experiment."
-  );
-
-  // Clean up.
-  prefBranch.setBoolPref(TELEMETRY_PREF, originalPrefValue);
-});
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_abandonment.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_abandonment.js
index 0c1d8b8234..799c5018e9 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_abandonment.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_abandonment.js
@@ -2,7 +2,7 @@
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
 /*
- * Tests for the Glean SERP abandonment event
+ * Tests for the Glean SERP abandonment event.
  */
 
 "use strict";
@@ -32,9 +32,6 @@ add_setup(async function () {
   // Enable local telemetry recording for the duration of the tests.
   let oldCanRecord = Services.telemetry.canRecordExtended;
   Services.telemetry.canRecordExtended = true;
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
 
   registerCleanupFunction(async () => {
     SearchSERPTelemetry.overrideSearchTelemetryForTests();
@@ -65,6 +62,7 @@ add_task(async function test_tab_close() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       abandonment: {
         reason: SearchSERPTelemetryUtils.ABANDONMENTS.TAB_CLOSE,
@@ -99,6 +97,7 @@ add_task(async function test_window_close() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       abandonment: {
         reason: SearchSERPTelemetryUtils.ABANDONMENTS.WINDOW_CLOSE,
@@ -134,6 +133,7 @@ add_task(async function test_navigation_via_urlbar() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       abandonment: {
         reason: SearchSERPTelemetryUtils.ABANDONMENTS.NAVIGATION,
@@ -181,6 +181,7 @@ add_task(async function test_navigation_via_back_button() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       abandonment: {
         reason: SearchSERPTelemetryUtils.ABANDONMENTS.NAVIGATION,
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_adImpression_component.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_adImpression_component.js
index 5a09353ed6..dd7629f5f3 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_adImpression_component.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_adImpression_component.js
@@ -103,9 +103,6 @@ add_setup(async function () {
   // Enable local telemetry recording for the duration of the tests.
   let oldCanRecord = Services.telemetry.canRecordExtended;
   Services.telemetry.canRecordExtended = true;
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
 
   // The tests evaluate whether or not ads are visible depending on whether
   // they are within the view of the window. To ensure the test results
@@ -142,6 +139,7 @@ add_task(async function test_ad_impressions_with_one_carousel() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -186,6 +184,7 @@ add_task(async function test_ad_impressions_with_two_carousels() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -221,6 +220,7 @@ add_task(
           is_shopping_page: "false",
           is_private: "false",
           shopping_tab_displayed: "false",
+          is_signed_in: "false",
         },
         adImpressions: [
           {
@@ -272,6 +272,7 @@ add_task(async function test_ad_impressions_with_carousels_tabhistory() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -304,6 +305,7 @@ add_task(async function test_ad_impressions_with_hidden_carousels() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -338,6 +340,7 @@ add_task(async function test_ad_impressions_with_carousel_scrolled_left() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -372,6 +375,7 @@ add_task(async function test_ad_impressions_with_carousel_below_the_fold() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -404,6 +408,7 @@ add_task(async function test_ad_impressions_with_text_links() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -463,6 +468,7 @@ add_task(async function test_ad_visibility() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -495,6 +501,7 @@ add_task(async function test_impressions_without_ads() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -527,6 +534,7 @@ add_task(async function test_ad_impressions_with_cookie_banner() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_adImpression_component_skipCount_children.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_adImpression_component_skipCount_children.js
index 65cd612a49..6f4f5d7ec1 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_adImpression_component_skipCount_children.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_adImpression_component_skipCount_children.js
@@ -28,6 +28,7 @@ const IMPRESSION = {
   is_shopping_page: "false",
   is_private: "false",
   shopping_tab_displayed: "false",
+  is_signed_in: "false",
 };
 
 const SERP_URL = getSERPUrl("searchTelemetryAd_searchbox_with_content.html");
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_adImpression_component_skipCount_parent.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_adImpression_component_skipCount_parent.js
index 8471215840..e6e5f04cf9 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_adImpression_component_skipCount_parent.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_adImpression_component_skipCount_parent.js
@@ -28,6 +28,7 @@ const IMPRESSION = {
   is_shopping_page: "false",
   is_private: "false",
   shopping_tab_displayed: "false",
+  is_signed_in: "false",
 };
 
 const SERP_URL = getSERPUrl("searchTelemetryAd_searchbox_with_content.html");
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_categorization_timing.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_categorization_timing.js
index 9ecc4e8d92..a43fae7ca2 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_categorization_timing.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_categorization_timing.js
@@ -30,9 +30,6 @@ const TEST_PROVIDER_INFO = [
 add_setup(async function () {
   SearchSERPTelemetry.overrideSearchTelemetryForTests(TEST_PROVIDER_INFO);
   await waitForIdle();
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
 
   registerCleanupFunction(async () => {
     SearchSERPTelemetry.overrideSearchTelemetryForTests();
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_ad_values.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_ad_values.js
index daccbf0c93..a9201beb22 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_ad_values.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_ad_values.js
@@ -115,6 +115,8 @@ add_task(async function test_load_serp_and_categorize() {
       tagged: "true",
       is_shopping_page: "false",
       num_ads_clicked: "0",
+      num_ads_hidden: "0",
+      num_ads_loaded: "2",
       num_ads_visible: "2",
     },
   ]);
@@ -156,6 +158,8 @@ add_task(async function test_load_serp_and_categorize_and_click_organic() {
       tagged: "true",
       is_shopping_page: "false",
       num_ads_clicked: "0",
+      num_ads_hidden: "0",
+      num_ads_loaded: "2",
       num_ads_visible: "2",
     },
   ]);
@@ -195,6 +199,8 @@ add_task(async function test_load_serp_and_categorize_and_click_sponsored() {
       tagged: "true",
       is_shopping_page: "false",
       num_ads_clicked: "1",
+      num_ads_hidden: "0",
+      num_ads_loaded: "2",
       num_ads_visible: "2",
     },
   ]);
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_download_timer.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_download_timer.js
index 9bd215f697..694900912d 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_download_timer.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_download_timer.js
@@ -179,6 +179,8 @@ add_task(async function test_download_after_failure() {
       provider: "example",
       tagged: "true",
       is_shopping_page: "false",
+      num_ads_hidden: "0",
+      num_ads_loaded: "2",
       num_ads_visible: "2",
       num_ads_clicked: "0",
     },
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_no_sponsored_values.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_no_sponsored_values.js
index 2375cad82a..f23859dbd5 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_no_sponsored_values.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_no_sponsored_values.js
@@ -87,13 +87,14 @@ add_task(
     assertSERPTelemetry([
       {
         impression: {
-          shopping_tab_displayed: "true",
           provider: "example",
-          source: "unknown",
           tagged: "true",
-          is_private: "false",
-          is_shopping_page: "false",
           partner_code: "ff",
+          source: "unknown",
+          is_shopping_page: "false",
+          is_private: "false",
+          shopping_tab_displayed: "true",
+          is_signed_in: "false",
         },
         adImpressions: [
           {
@@ -134,6 +135,8 @@ add_task(
         tagged: "true",
         is_shopping_page: "false",
         num_ads_clicked: "0",
+        num_ads_hidden: "0",
+        num_ads_loaded: "0",
         num_ads_visible: "0",
       },
     ]);
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_region.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_region.js
index 7dbf605396..45d97c85e8 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_region.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_region.js
@@ -126,6 +126,8 @@ add_task(async function test_categorize_page_with_different_region() {
       tagged: "true",
       is_shopping_page: "false",
       num_ads_clicked: "0",
+      num_ads_hidden: "0",
+      num_ads_loaded: "2",
       num_ads_visible: "2",
     },
   ]);
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_reporting.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_reporting.js
index 3c439844d7..fba30ec4a0 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_reporting.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_reporting.js
@@ -136,6 +136,8 @@ add_task(async function test_categorization_reporting() {
       tagged: "true",
       is_shopping_page: "false",
       num_ads_clicked: "0",
+      num_ads_hidden: "0",
+      num_ads_loaded: "2",
       num_ads_visible: "2",
     },
   ]);
@@ -242,6 +244,8 @@ add_task(async function test_reporting_limited_to_10_domains_of_each_kind() {
       tagged: "true",
       is_shopping_page: "false",
       num_ads_clicked: "0",
+      num_ads_hidden: "0",
+      num_ads_loaded: "12",
       num_ads_visible: "12",
     },
   ]);
@@ -279,6 +283,8 @@ add_task(async function test_categorization_reporting_for_shopping_page() {
       tagged: "true",
       is_shopping_page: "true",
       num_ads_clicked: "0",
+      num_ads_hidden: "0",
+      num_ads_loaded: "2",
       num_ads_visible: "2",
     },
   ]);
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_reporting_timer.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_reporting_timer.js
index 0e2d1c07fd..59a3c15ef9 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_reporting_timer.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_reporting_timer.js
@@ -139,6 +139,8 @@ add_task(async function test_categorize_serp_and_wait() {
       tagged: "true",
       is_shopping_page: "false",
       num_ads_clicked: "0",
+      num_ads_hidden: "0",
+      num_ads_loaded: "2",
       num_ads_visible: "2",
     },
   ]);
@@ -184,6 +186,8 @@ add_task(async function test_categorize_serp_open_multiple_tabs() {
       tagged: "true",
       is_shopping_page: "false",
       num_ads_clicked: "0",
+      num_ads_hidden: "0",
+      num_ads_loaded: "2",
       num_ads_visible: "2",
     });
   }
@@ -238,6 +242,8 @@ add_task(async function test_categorize_serp_close_tab_and_wait() {
       tagged: "true",
       is_shopping_page: "false",
       num_ads_clicked: "0",
+      num_ads_hidden: "0",
+      num_ads_loaded: "2",
       num_ads_visible: "2",
     },
   ]);
@@ -292,6 +298,8 @@ add_task(async function test_categorize_serp_open_ad_and_wait() {
       tagged: "true",
       is_shopping_page: "false",
       num_ads_clicked: "1",
+      num_ads_hidden: "0",
+      num_ads_loaded: "2",
       num_ads_visible: "2",
     },
   ]);
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_reporting_timer_wakeup.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_reporting_timer_wakeup.js
index 43c520a8d0..b824ec9817 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_reporting_timer_wakeup.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_domain_categorization_reporting_timer_wakeup.js
@@ -151,6 +151,8 @@ add_task(async function test_categorize_serp_and_sleep() {
       tagged: "true",
       is_shopping_page: "false",
       num_ads_clicked: "0",
+      num_ads_hidden: "0",
+      num_ads_loaded: "2",
       num_ads_visible: "2",
     },
   ]);
@@ -209,6 +211,8 @@ add_task(async function test_categorize_serp_and_sleep_not_long_enough() {
       tagged: "true",
       is_shopping_page: "false",
       num_ads_clicked: "0",
+      num_ads_hidden: "0",
+      num_ads_loaded: "2",
       num_ads_visible: "2",
     },
   ]);
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_cached.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_cached.js
index 791e29a01f..7392c15396 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_cached.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_cached.js
@@ -89,9 +89,6 @@ add_setup(async function () {
   // Enable local telemetry recording for the duration of the tests.
   let oldCanRecord = Services.telemetry.canRecordExtended;
   Services.telemetry.canRecordExtended = true;
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
 
   registerCleanupFunction(async () => {
     SearchSERPTelemetry.overrideSearchTelemetryForTests();
@@ -142,6 +139,7 @@ add_task(async function test_click_cached_page() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -173,6 +171,7 @@ add_task(async function test_click_cached_page() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_cached_serp.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_cached_serp.js
index 72e26639fb..13861f4b27 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_cached_serp.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_cached_serp.js
@@ -48,9 +48,6 @@ const TEST_PROVIDER_INFO = [
 add_setup(async function () {
   SearchSERPTelemetry.overrideSearchTelemetryForTests(TEST_PROVIDER_INFO);
   await waitForIdle();
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
 
   registerCleanupFunction(async () => {
     SearchSERPTelemetry.overrideSearchTelemetryForTests();
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_content.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_content.js
index f94e6b0bd8..993568abe6 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_content.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_content.js
@@ -75,9 +75,6 @@ add_setup(async function () {
   // Enable local telemetry recording for the duration of the tests.
   let oldCanRecord = Services.telemetry.canRecordExtended;
   Services.telemetry.canRecordExtended = true;
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
 
   registerCleanupFunction(async () => {
     SearchSERPTelemetry.overrideSearchTelemetryForTests();
@@ -113,6 +110,7 @@ add_task(async function test_click_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -144,6 +142,7 @@ add_task(async function test_click_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -192,6 +191,7 @@ add_task(async function test_click_shopping() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -223,6 +223,7 @@ add_task(async function test_click_shopping() {
         is_shopping_page: "true",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -275,6 +276,7 @@ add_task(async function test_click_related_search_in_new_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -306,6 +308,7 @@ add_task(async function test_click_related_search_in_new_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -361,6 +364,7 @@ add_task(async function test_click_redirect_search_in_newtab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -392,6 +396,7 @@ add_task(async function test_click_redirect_search_in_newtab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -454,6 +459,7 @@ add_task(async function test_content_source_reset() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -489,6 +495,7 @@ add_task(async function test_content_source_reset() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -520,6 +527,7 @@ add_task(async function test_content_source_reset() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -580,6 +588,7 @@ add_task(async function test_click_refinement_button() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -611,6 +620,7 @@ add_task(async function test_click_refinement_button() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_eventListeners_children.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_eventListeners_children.js
index 4f5aaf9378..dce34e9443 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_eventListeners_children.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_eventListeners_children.js
@@ -28,6 +28,7 @@ const IMPRESSION = {
   is_shopping_page: "false",
   is_private: "false",
   shopping_tab_displayed: "false",
+  is_signed_in: "false",
 };
 
 const SELECTOR = ".arrow";
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_eventListeners_parent.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_eventListeners_parent.js
index 4e3c635b4c..6d509ba904 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_eventListeners_parent.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_eventListeners_parent.js
@@ -29,6 +29,7 @@ const IMPRESSION = {
   is_shopping_page: "false",
   is_private: "false",
   shopping_tab_displayed: "false",
+  is_signed_in: "false",
 };
 
 const SELECTOR = ".arrow";
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_ignoreLinkRegexps.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_ignoreLinkRegexps.js
index 10f2a2d836..86e9779d0b 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_ignoreLinkRegexps.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_ignoreLinkRegexps.js
@@ -49,6 +49,7 @@ const IMPRESSION = {
   is_shopping_page: "false",
   is_private: "false",
   shopping_tab_displayed: "false",
+  is_signed_in: "false",
 };
 
 const SERP_URL = getSERPUrl("searchTelemetryAd_searchbox_with_content.html");
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_multiple_tabs.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_multiple_tabs.js
index fbe6f4fc73..0e76c0c8a1 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_multiple_tabs.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_multiple_tabs.js
@@ -63,10 +63,7 @@ add_setup(async function () {
   SearchSERPTelemetry.overrideSearchTelemetryForTests(TEST_PROVIDER_INFO);
   await waitForIdle();
   await SpecialPowers.pushPrefEnv({
-    set: [
-      ["browser.search.serpEventTelemetry.enabled", true],
-      ["dom.ipc.processCount.webIsolated", MAX_IPC],
-    ],
+    set: [["dom.ipc.processCount.webIsolated", MAX_IPC]],
   });
 
   registerCleanupFunction(async () => {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_nonAdsLinkQueryParamNames.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_nonAdsLinkQueryParamNames.js
index 93a6b7993e..b334aa5637 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_nonAdsLinkQueryParamNames.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_nonAdsLinkQueryParamNames.js
@@ -76,6 +76,7 @@ add_task(async function test_click_absolute_url_in_query_param() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -101,6 +102,7 @@ add_task(async function test_click_absolute_url_in_query_param() {
         is_shopping_page: "true",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -151,6 +153,7 @@ add_task(async function test_click_relative_href_in_query_param() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -176,6 +179,7 @@ add_task(async function test_click_relative_href_in_query_param() {
         is_shopping_page: "true",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -226,6 +230,7 @@ add_task(async function test_click_irrelevant_href_in_query_param() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       engagements: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_non_ad.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_non_ad.js
index d351234d50..94e8ab24fe 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_non_ad.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_non_ad.js
@@ -31,10 +31,6 @@ const TEST_PROVIDER_INFO = [
 add_setup(async function () {
   SearchSERPTelemetry.overrideSearchTelemetryForTests(TEST_PROVIDER_INFO);
   await waitForIdle();
-  // Enable local telemetry recording for the duration of the tests.
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
 
   registerCleanupFunction(async () => {
     SearchSERPTelemetry.overrideSearchTelemetryForTests();
@@ -71,6 +67,7 @@ add_task(async function test_click_non_ads_link() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -128,6 +125,7 @@ add_task(async function test_click_non_ad_with_no_ads() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_query_params.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_query_params.js
index 6d93707d68..da8c952191 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_query_params.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_query_params.js
@@ -5,7 +5,6 @@
  * These tests load SERPs and check that query params that are changed either
  * by the browser or in the page after click are still properly recognized
  * as ads.
- *
  */
 
 "use strict";
@@ -50,9 +49,6 @@ add_setup(async function () {
   // Enable local telemetry recording for the duration of the tests.
   let oldCanRecord = Services.telemetry.canRecordExtended;
   Services.telemetry.canRecordExtended = true;
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
 
   registerCleanupFunction(async () => {
     SearchSERPTelemetry.overrideSearchTelemetryForTests();
@@ -88,6 +84,7 @@ add_task(async function test_click_links() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -136,6 +133,7 @@ add_task(async function test_click_links() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -167,6 +165,7 @@ add_task(async function test_click_links() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -231,6 +230,7 @@ add_task(async function test_click_link_with_more_parameters() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -294,6 +294,7 @@ add_task(async function test_click_link_with_fewer_parameters() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -357,6 +358,7 @@ add_task(async function test_click_link_with_reordered_parameters() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_redirect.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_redirect.js
index 5d7f2ee408..7851cbb7e7 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_redirect.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_redirect.js
@@ -36,10 +36,6 @@ const TEST_PROVIDER_INFO = [
 add_setup(async function () {
   SearchSERPTelemetry.overrideSearchTelemetryForTests(TEST_PROVIDER_INFO);
   await waitForIdle();
-  // Enable local telemetry recording for the duration of the tests.
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
 
   registerCleanupFunction(async () => {
     SearchSERPTelemetry.overrideSearchTelemetryForTests();
@@ -79,6 +75,7 @@ add_task(async function test_click_non_ads_link_redirected() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -139,6 +136,7 @@ add_task(async function test_click_non_ads_link_redirected_new_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -195,6 +193,7 @@ add_task(async function test_click_non_ads_link_redirect_non_top_level() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -248,6 +247,7 @@ add_task(async function test_multiple_redirects_non_ad_link() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -301,6 +301,7 @@ add_task(async function test_click_ad_link_redirected() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -349,6 +350,7 @@ add_task(async function test_click_ad_link_redirected_new_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_target.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_target.js
index 8f7f7f4e05..5af024222c 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_target.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_engagement_target.js
@@ -148,9 +148,6 @@ add_setup(async function () {
   // Enable local telemetry recording for the duration of the tests.
   let oldCanRecord = Services.telemetry.canRecordExtended;
   Services.telemetry.canRecordExtended = true;
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
 
   registerCleanupFunction(async () => {
     SearchSERPTelemetry.overrideSearchTelemetryForTests();
@@ -189,6 +186,7 @@ add_task(async function test_click_second_ad_in_component() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -245,6 +243,7 @@ add_task(async function test_click_ads_link_modified() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -300,6 +299,7 @@ add_task(async function test_click_and_submit_incontent_searchbox() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -321,6 +321,7 @@ add_task(async function test_click_and_submit_incontent_searchbox() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
     },
   ]);
@@ -358,6 +359,7 @@ add_task(async function test_click_autosuggest() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -375,6 +377,7 @@ add_task(async function test_click_autosuggest() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
     },
   ]);
@@ -404,6 +407,7 @@ add_task(async function test_click_carousel_expand() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -464,6 +468,7 @@ add_task(async function test_click_link_with_special_characters_in_path() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -519,6 +524,7 @@ add_task(async function test_click_cookie_banner_accept() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -564,6 +570,7 @@ add_task(async function test_click_cookie_banner_reject() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -609,6 +616,7 @@ add_task(async function test_click_cookie_banner_more_options() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_new_window.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_new_window.js
index 4f943fe92d..8866f72579 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_new_window.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_new_window.js
@@ -30,10 +30,6 @@ const TEST_PROVIDER_INFO = [
 add_setup(async function () {
   SearchSERPTelemetry.overrideSearchTelemetryForTests(TEST_PROVIDER_INFO);
   await waitForIdle();
-  // Enable local telemetry recording for the duration of the tests.
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
 
   registerCleanupFunction(async () => {
     SearchSERPTelemetry.overrideSearchTelemetryForTests();
@@ -83,6 +79,7 @@ add_task(async function load_serp_in_new_window_with_pref_and_click_ad() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -148,6 +145,7 @@ add_task(async function load_serp_in_new_window_with_pref_and_click_organic() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -214,6 +212,7 @@ add_task(async function load_serp_in_new_window_with_context_menu() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -303,6 +302,7 @@ add_task(
           is_shopping_page: "false",
           is_private: "false",
           shopping_tab_displayed: "false",
+          is_signed_in: "false",
         },
         adImpressions: [
           {
@@ -322,6 +322,7 @@ add_task(
           is_shopping_page: "false",
           is_private: "false",
           shopping_tab_displayed: "false",
+          is_signed_in: "false",
         },
         engagements: [
           {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_private.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_private.js
index ea7556c8f6..2c4494e202 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_private.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_private.js
@@ -31,10 +31,6 @@ const TEST_PROVIDER_INFO = [
 add_setup(async function () {
   SearchSERPTelemetry.overrideSearchTelemetryForTests(TEST_PROVIDER_INFO);
   await waitForIdle();
-  // Enable local telemetry recording for the duration of the tests.
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
 
   registerCleanupFunction(async () => {
     SearchSERPTelemetry.overrideSearchTelemetryForTests();
@@ -82,6 +78,7 @@ add_task(async function load_2_pbm_serps_and_1_non_pbm_serp() {
         is_shopping_page: "false",
         is_private: "true",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       abandonment: {
         reason: SearchSERPTelemetryUtils.ABANDONMENTS.NAVIGATION,
@@ -96,6 +93,7 @@ add_task(async function load_2_pbm_serps_and_1_non_pbm_serp() {
         is_shopping_page: "false",
         is_private: "true",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       abandonment: {
         reason: SearchSERPTelemetryUtils.ABANDONMENTS.TAB_CLOSE,
@@ -118,6 +116,7 @@ add_task(async function load_2_pbm_serps_and_1_non_pbm_serp() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_remote_settings_sync.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_remote_settings_sync.js
index 5f2afcf6fc..a8a52ba794 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_remote_settings_sync.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_remote_settings_sync.js
@@ -86,7 +86,6 @@ add_setup(async function () {
   // Enable local telemetry recording for the duration of the tests.
   await SpecialPowers.pushPrefEnv({
     set: [
-      ["browser.search.serpEventTelemetry.enabled", true],
       // Set the IPC count to a small number so that we only have to open
       // one additional tab to reuse the same process.
       ["dom.ipc.processCount.webIsolated", 1],
@@ -139,6 +138,7 @@ add_task(async function update_telemetry_tab_already_open() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -192,6 +192,7 @@ add_task(async function update_telemetry_tab_closed() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -246,6 +247,7 @@ add_task(async function update_telemetry_multiple_tabs() {
           is_shopping_page: "false",
           is_private: "false",
           shopping_tab_displayed: "false",
+          is_signed_in: "false",
         },
         adImpressions: [
           {
@@ -307,6 +309,7 @@ add_task(async function update_telemetry_multiple_processes_and_tabs() {
           is_shopping_page: "false",
           is_private: "false",
           shopping_tab_displayed: "false",
+          is_signed_in: "false",
         },
         adImpressions: [
           {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_shopping.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_shopping.js
index e2352b53f4..b687f025fd 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_shopping.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_shopping.js
@@ -55,9 +55,6 @@ add_setup(async function () {
   // Enable local telemetry recording for the duration of the tests.
   let oldCanRecord = Services.telemetry.canRecordExtended;
   Services.telemetry.canRecordExtended = true;
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
 
   registerCleanupFunction(async () => {
     SearchSERPTelemetry.overrideSearchTelemetryForTests();
@@ -83,6 +80,7 @@ async function loadSerpAndClickShoppingTab(page) {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -109,6 +107,7 @@ async function loadSerpAndClickShoppingTab(page) {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "true",
+        is_signed_in: "false",
       },
       engagements: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_signed_in_to_account.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_signed_in_to_account.js
new file mode 100644
index 0000000000..701016e5b0
--- /dev/null
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_signed_in_to_account.js
@@ -0,0 +1,187 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/*
+ * Test to verify that the SERP impression event correctly records whether the
+ * user is logged in to a provider's account at the time of SERP load.
+ */
+
+"use strict";
+
+const TEST_PROVIDER_INFO = [
+  {
+    telemetryId: "example",
+    searchPageRegexp:
+      /^https:\/\/example.org\/browser\/browser\/components\/search\/test\/browser\/telemetry\/searchTelemetry(?:Ad)?/,
+    queryParamNames: ["s"],
+    accountCookies: [
+      {
+        host: "accounts.google.com",
+        name: "SID",
+      },
+    ],
+    codeParamName: "abc",
+    taggedCodes: ["ff"],
+    followOnParamNames: ["a"],
+    extraAdServersRegexps: [/^https:\/\/example\.com\/ad2?/],
+    components: [
+      {
+        type: SearchSERPTelemetryUtils.COMPONENTS.AD_LINK,
+        default: true,
+      },
+    ],
+  },
+];
+
+function simulateGoogleAccountSignIn() {
+  // Manually set the cookie that is present when the client is signed in to a
+  // Google account.
+  Services.cookies.add(
+    "accounts.google.com",
+    "",
+    "SID",
+    "dummy_cookie_value",
+    false,
+    false,
+    false,
+    Date.now() + 1000 * 60 * 60,
+    {},
+    Ci.nsICookie.SAMESITE_NONE,
+    Ci.nsICookie.SCHEME_HTTPS
+  );
+}
+
+add_setup(async function () {
+  SearchSERPTelemetry.overrideSearchTelemetryForTests(TEST_PROVIDER_INFO);
+  await waitForIdle();
+  // Enable local telemetry recording for the duration of the tests.
+  let oldCanRecord = Services.telemetry.canRecordExtended;
+  Services.telemetry.canRecordExtended = true;
+
+  registerCleanupFunction(async () => {
+    SearchSERPTelemetry.overrideSearchTelemetryForTests();
+    Services.telemetry.canRecordExtended = oldCanRecord;
+    resetTelemetry();
+  });
+});
+
+add_task(async function test_not_signed_in_to_google_account() {
+  info("Loading SERP while not signed in to Google account.");
+  let url = getSERPUrl("searchTelemetry.html");
+  let tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, url);
+
+  assertSERPTelemetry([
+    {
+      impression: {
+        provider: "example",
+        tagged: "true",
+        partner_code: "ff",
+        source: "unknown",
+        is_shopping_page: "false",
+        is_private: "false",
+        shopping_tab_displayed: "false",
+        is_signed_in: "false",
+      },
+    },
+  ]);
+
+  BrowserTestUtils.removeTab(tab);
+  resetTelemetry();
+});
+
+add_task(async function test_signed_in_to_google_account() {
+  simulateGoogleAccountSignIn();
+
+  info("Loading SERP while signed in to Google account.");
+  let url = getSERPUrl("searchTelemetry.html");
+  let tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, url);
+
+  assertSERPTelemetry([
+    {
+      impression: {
+        provider: "example",
+        tagged: "true",
+        partner_code: "ff",
+        source: "unknown",
+        is_shopping_page: "false",
+        is_private: "false",
+        shopping_tab_displayed: "false",
+        is_signed_in: "true",
+      },
+    },
+  ]);
+
+  BrowserTestUtils.removeTab(tab);
+  Services.cookies.removeAll();
+  resetTelemetry();
+});
+
+add_task(async function test_toggle_google_account_signed_in_status() {
+  info("Loading SERP while not signed in to Google account.");
+  let url = getSERPUrl("searchTelemetry.html");
+  let tab1 = await BrowserTestUtils.openNewForegroundTab(gBrowser, url);
+
+  assertSERPTelemetry([
+    {
+      impression: {
+        provider: "example",
+        tagged: "true",
+        partner_code: "ff",
+        source: "unknown",
+        is_shopping_page: "false",
+        is_private: "false",
+        shopping_tab_displayed: "false",
+        is_signed_in: "false",
+      },
+    },
+  ]);
+
+  resetTelemetry();
+
+  info("Signing in to Google account.");
+  simulateGoogleAccountSignIn();
+
+  info("Loading SERP after signing in to Google account.");
+  let tab2 = await BrowserTestUtils.openNewForegroundTab(gBrowser, url);
+  assertSERPTelemetry([
+    {
+      impression: {
+        provider: "example",
+        tagged: "true",
+        partner_code: "ff",
+        source: "unknown",
+        is_shopping_page: "false",
+        is_private: "false",
+        shopping_tab_displayed: "false",
+        is_signed_in: "true",
+      },
+    },
+  ]);
+
+  resetTelemetry();
+
+  info("Signing out of Google account.");
+  Services.cookies.removeAll();
+
+  info("Loading SERP after signing out of Google account.");
+  let tab3 = await BrowserTestUtils.openNewForegroundTab(gBrowser, url);
+  assertSERPTelemetry([
+    {
+      impression: {
+        provider: "example",
+        tagged: "true",
+        partner_code: "ff",
+        source: "unknown",
+        is_shopping_page: "false",
+        is_private: "false",
+        shopping_tab_displayed: "false",
+        is_signed_in: "false",
+      },
+    },
+  ]);
+
+  BrowserTestUtils.removeTab(tab1);
+  BrowserTestUtils.removeTab(tab2);
+  BrowserTestUtils.removeTab(tab3);
+  resetTelemetry();
+});
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources.js
index 7fa66a1adf..3cb246f21d 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources.js
@@ -63,7 +63,6 @@ add_setup(async function () {
       ],
       // Ensure to add search suggestion telemetry as search_suggestion not search_formhistory.
       ["browser.urlbar.maxHistoricalSearchSuggestions", 0],
-      ["browser.search.serpEventTelemetry.enabled", true],
     ],
   });
   // Enable local telemetry recording for the duration of the tests.
@@ -148,6 +147,7 @@ async function track_ad_click(
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_about.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_about.js
index a313c75ac7..fa596acac1 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_about.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_about.js
@@ -4,7 +4,6 @@
 /*
  * Main tests for SearchSERPTelemetry - general engine visiting and link
  * clicking on about pages.
- *
  */
 
 "use strict";
@@ -61,7 +60,6 @@ add_setup(async function () {
       ],
       // Ensure to add search suggestion telemetry as search_suggestion not search_formhistory.
       ["browser.urlbar.maxHistoricalSearchSuggestions", 0],
-      ["browser.search.serpEventTelemetry.enabled", true],
     ],
   });
   // Enable local telemetry recording for the duration of the tests.
@@ -146,6 +144,7 @@ async function track_ad_click(
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_ads.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_ads.js
index 0fd93da30f..97480b7d36 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_ads.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_ads.js
@@ -38,9 +38,6 @@ add_setup(async function () {
   // Enable local telemetry recording for the duration of the tests.
   let oldCanRecord = Services.telemetry.canRecordExtended;
   Services.telemetry.canRecordExtended = true;
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
 
   registerCleanupFunction(async () => {
     SearchSERPTelemetry.overrideSearchTelemetryForTests();
@@ -77,6 +74,7 @@ add_task(async function test_simple_search_page_visit() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       abandonment: {
         reason: SearchSERPTelemetryUtils.ABANDONMENTS.TAB_CLOSE,
@@ -120,6 +118,7 @@ add_task(async function test_simple_search_page_visit_telemetry() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       abandonment: {
         reason: SearchSERPTelemetryUtils.ABANDONMENTS.TAB_CLOSE,
@@ -156,6 +155,7 @@ add_task(async function test_follow_on_visit() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       abandonment: {
         reason: SearchSERPTelemetryUtils.ABANDONMENTS.TAB_CLOSE,
@@ -170,6 +170,7 @@ add_task(async function test_follow_on_visit() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       abandonment: {
         reason: SearchSERPTelemetryUtils.ABANDONMENTS.TAB_CLOSE,
@@ -205,6 +206,7 @@ add_task(async function test_track_ad() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -247,6 +249,7 @@ add_task(async function test_track_ad_organic() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -294,6 +297,7 @@ add_task(async function test_track_ad_new_window() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -349,6 +353,7 @@ add_task(async function test_track_ad_pages_without_ads() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
     },
     {
@@ -360,6 +365,7 @@ add_task(async function test_track_ad_pages_without_ads() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_ads_clicks.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_ads_clicks.js
index 11d2176563..1b7dee7f04 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_ads_clicks.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_ads_clicks.js
@@ -34,9 +34,6 @@ add_setup(async function () {
   // Enable local telemetry recording for the duration of the tests.
   let oldCanRecord = Services.telemetry.canRecordExtended;
   Services.telemetry.canRecordExtended = true;
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
 
   registerCleanupFunction(async () => {
     SearchSERPTelemetry.overrideSearchTelemetryForTests();
@@ -82,6 +79,7 @@ async function track_ad_click(testOrganic) {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -118,6 +116,7 @@ async function track_ad_click(testOrganic) {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -164,6 +163,7 @@ async function track_ad_click(testOrganic) {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -189,6 +189,7 @@ async function track_ad_click(testOrganic) {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -228,6 +229,7 @@ async function track_ad_click(testOrganic) {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -253,6 +255,7 @@ async function track_ad_click(testOrganic) {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -307,6 +310,7 @@ add_task(async function test_track_ad_click_with_location_change_other_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -350,6 +354,7 @@ add_task(async function test_track_ad_click_with_location_change_other_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_ads_data_attributes.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_ads_data_attributes.js
index 3c5e0a464e..02b716c423 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_ads_data_attributes.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_ads_data_attributes.js
@@ -2,7 +2,8 @@
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
 /*
- * Tests for SearchSERPTelemetry associated with ad links found in data attributes.
+ * Tests for SearchSERPTelemetry associated with ad links found in data
+ * attributes.
  */
 
 "use strict";
@@ -34,9 +35,6 @@ add_setup(async function () {
   // Enable local telemetry recording for the duration of the tests.
   let oldCanRecord = Services.telemetry.canRecordExtended;
   Services.telemetry.canRecordExtended = true;
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
 
   registerCleanupFunction(async () => {
     SearchSERPTelemetry.overrideSearchTelemetryForTests();
@@ -76,6 +74,7 @@ add_task(async function test_track_ad_on_data_attributes() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -122,6 +121,7 @@ add_task(async function test_track_ad_on_data_attributes_and_hrefs() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -165,6 +165,7 @@ add_task(async function test_track_no_ad_on_data_attributes_and_hrefs() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
     },
   ]);
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_ads_load_events.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_ads_load_events.js
index 069e13d339..b79f31b678 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_ads_load_events.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_ads_load_events.js
@@ -34,9 +34,6 @@ add_setup(async function () {
   // Enable local telemetry recording for the duration of the tests.
   let oldCanRecord = Services.telemetry.canRecordExtended;
   Services.telemetry.canRecordExtended = true;
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
 
   registerCleanupFunction(async () => {
     SearchSERPTelemetry.overrideSearchTelemetryForTests();
@@ -84,6 +81,7 @@ add_task(async function test_track_ad_on_DOMContentLoaded() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -126,6 +124,7 @@ add_task(async function test_track_ad_on_load_event() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_in_content.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_in_content.js
index 9bff667857..a7237506f6 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_in_content.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_in_content.js
@@ -43,9 +43,6 @@ const TEST_PROVIDER_INFO = [
 add_setup(async function () {
   SearchSERPTelemetry.overrideSearchTelemetryForTests(TEST_PROVIDER_INFO);
   await waitForIdle();
-  await SpecialPowers.pushPrefEnv({
-    set: [["browser.search.serpEventTelemetry.enabled", true]],
-  });
   // Enable local telemetry recording for the duration of the tests.
   let oldCanRecord = Services.telemetry.canRecordExtended;
   Services.telemetry.canRecordExtended = true;
@@ -88,6 +85,7 @@ add_task(async function test_source_opened_in_new_tab_via_middle_click() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -113,6 +111,7 @@ add_task(async function test_source_opened_in_new_tab_via_middle_click() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -162,6 +161,7 @@ add_task(async function test_source_opened_in_new_tab_via_target_blank() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -187,6 +187,7 @@ add_task(async function test_source_opened_in_new_tab_via_target_blank() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -250,6 +251,7 @@ add_task(async function test_source_opened_in_new_tab_via_context_menu() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -275,6 +277,7 @@ add_task(async function test_source_opened_in_new_tab_via_context_menu() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -317,6 +320,7 @@ add_task(
           is_shopping_page: "false",
           is_private: "false",
           shopping_tab_displayed: "false",
+          is_signed_in: "false",
         },
         engagements: [
           {
@@ -343,6 +347,7 @@ add_task(
           is_shopping_page: "false",
           is_private: "false",
           shopping_tab_displayed: "false",
+          is_signed_in: "false",
         },
         adImpressions: [
           {
@@ -386,6 +391,7 @@ add_task(
           is_shopping_page: "false",
           is_private: "false",
           shopping_tab_displayed: "false",
+          is_signed_in: "false",
         },
         engagements: [
           {
@@ -412,6 +418,7 @@ add_task(
           is_shopping_page: "false",
           is_private: "false",
           shopping_tab_displayed: "false",
+          is_signed_in: "false",
         },
         adImpressions: [
           {
@@ -464,6 +471,7 @@ add_task(async function test_refinement_button_vs_opened_in_new_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -489,6 +497,7 @@ add_task(async function test_refinement_button_vs_opened_in_new_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_navigation.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_navigation.js
index 7ce681701a..58519d82ac 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_navigation.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_navigation.js
@@ -56,10 +56,7 @@ add_setup(async function () {
   SearchSERPTelemetry.overrideSearchTelemetryForTests(TEST_PROVIDER_INFO);
   await waitForIdle();
   await SpecialPowers.pushPrefEnv({
-    set: [
-      ["browser.urlbar.suggest.searches", true],
-      ["browser.search.serpEventTelemetry.enabled", true],
-    ],
+    set: [["browser.urlbar.suggest.searches", true]],
   });
   // Enable local telemetry recording for the duration of the tests.
   let oldCanRecord = Services.telemetry.canRecordExtended;
@@ -130,6 +127,7 @@ add_task(async function test_search() {
         shopping_tab_displayed: "false",
         is_shopping_page: "false",
         is_private: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -172,6 +170,7 @@ add_task(async function test_reload() {
         shopping_tab_displayed: "false",
         is_shopping_page: "false",
         is_private: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -194,6 +193,7 @@ add_task(async function test_reload() {
         shopping_tab_displayed: "false",
         is_shopping_page: "false",
         is_private: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -233,6 +233,7 @@ add_task(async function test_reload() {
         shopping_tab_displayed: "false",
         is_shopping_page: "false",
         is_private: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -255,6 +256,7 @@ add_task(async function test_reload() {
         shopping_tab_displayed: "false",
         is_shopping_page: "false",
         is_private: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -306,6 +308,7 @@ add_task(async function test_fresh_search() {
         shopping_tab_displayed: "false",
         is_shopping_page: "false",
         is_private: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -345,6 +348,7 @@ add_task(async function test_click_ad() {
         shopping_tab_displayed: "false",
         is_shopping_page: "false",
         is_private: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -394,6 +398,7 @@ add_task(async function test_go_back() {
         shopping_tab_displayed: "false",
         is_shopping_page: "false",
         is_private: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -419,6 +424,7 @@ add_task(async function test_go_back() {
         shopping_tab_displayed: "false",
         is_shopping_page: "false",
         is_private: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -459,6 +465,7 @@ add_task(async function test_go_back() {
         shopping_tab_displayed: "false",
         is_shopping_page: "false",
         is_private: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -484,6 +491,7 @@ add_task(async function test_go_back() {
         shopping_tab_displayed: "false",
         is_shopping_page: "false",
         is_private: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -538,6 +546,7 @@ add_task(async function test_fresh_search_with_urlbar_persisted() {
         shopping_tab_displayed: "false",
         is_shopping_page: "false",
         is_private: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -577,6 +586,7 @@ add_task(async function test_fresh_search_with_urlbar_persisted() {
         shopping_tab_displayed: "false",
         is_shopping_page: "false",
         is_private: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -599,6 +609,7 @@ add_task(async function test_fresh_search_with_urlbar_persisted() {
         shopping_tab_displayed: "false",
         is_shopping_page: "false",
         is_private: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -640,6 +651,7 @@ add_task(async function test_fresh_search_with_urlbar_persisted() {
         shopping_tab_displayed: "false",
         is_shopping_page: "false",
         is_private: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -662,6 +674,7 @@ add_task(async function test_fresh_search_with_urlbar_persisted() {
         shopping_tab_displayed: "false",
         is_shopping_page: "false",
         is_private: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_webextension.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_webextension.js
index cb9e123622..1d31fc4456 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_webextension.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_sources_webextension.js
@@ -4,7 +4,6 @@
 /*
  * Main tests for SearchSERPTelemetry - general engine visiting and
  * link clicking with Web Extensions.
- *
  */
 
 "use strict";
@@ -42,7 +41,6 @@ add_setup(async function () {
       ],
       // Ensure to add search suggestion telemetry as search_suggestion not search_formhistory.
       ["browser.urlbar.maxHistoricalSearchSuggestions", 0],
-      ["browser.search.serpEventTelemetry.enabled", true],
     ],
   });
   // Enable local telemetry recording for the duration of the tests.
@@ -127,6 +125,7 @@ async function track_ad_click(
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_spa_in_content.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_spa_in_content.js
index 39270c7e9f..f0d731c577 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_spa_in_content.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_spa_in_content.js
@@ -52,6 +52,7 @@ add_task(async function test_content_process_type_search_click_suggestion() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -81,6 +82,7 @@ add_task(async function test_content_process_type_search_click_suggestion() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -125,6 +127,7 @@ add_task(
           is_shopping_page: "false",
           is_private: "false",
           shopping_tab_displayed: "false",
+          is_signed_in: "false",
         },
         engagements: [
           {
@@ -154,6 +157,7 @@ add_task(
           is_shopping_page: "false",
           is_private: "false",
           shopping_tab_displayed: "false",
+          is_signed_in: "false",
         },
         adImpressions: [
           {
@@ -197,6 +201,7 @@ add_task(async function test_content_process_engagement() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -246,6 +251,7 @@ add_task(async function test_content_process_engagement_that_changes_page() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -271,6 +277,7 @@ add_task(async function test_content_process_engagement_that_changes_page() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -319,6 +326,7 @@ add_task(
           is_shopping_page: "false",
           is_private: "false",
           shopping_tab_displayed: "false",
+          is_signed_in: "false",
         },
         engagements: [
           {
@@ -344,6 +352,7 @@ add_task(
           is_shopping_page: "false",
           is_private: "false",
           shopping_tab_displayed: "false",
+          is_signed_in: "false",
         },
         engagements: [
           {
@@ -369,6 +378,7 @@ add_task(
           is_shopping_page: "false",
           is_private: "false",
           shopping_tab_displayed: "false",
+          is_signed_in: "false",
         },
         adImpressions: [
           {
@@ -417,6 +427,7 @@ add_task(async function test_unload_listeners_single_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -476,6 +487,7 @@ add_task(async function test_unload_listeners_multi_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -501,6 +513,7 @@ add_task(async function test_unload_listeners_multi_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_spa_multi_provider.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_spa_multi_provider.js
index 1e44957daa..d3b064ffbf 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_spa_multi_provider.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_spa_multi_provider.js
@@ -55,6 +55,7 @@ add_task(async function test_load_serps_and_click_organic() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -80,6 +81,7 @@ add_task(async function test_load_serps_and_click_organic() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -141,6 +143,7 @@ add_task(async function test_load_serps_and_click_ads() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -166,6 +169,7 @@ add_task(async function test_load_serps_and_click_ads() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -223,6 +227,7 @@ add_task(async function test_load_serps_and_click_related() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -248,6 +253,7 @@ add_task(async function test_load_serps_and_click_related() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -273,6 +279,7 @@ add_task(async function test_load_serps_and_click_related() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -292,6 +299,7 @@ add_task(async function test_load_serps_and_click_related() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -353,6 +361,7 @@ add_task(async function test_load_pages_tabhistory() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -379,6 +388,7 @@ add_task(async function test_load_pages_tabhistory() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -404,6 +414,7 @@ add_task(async function test_load_pages_tabhistory() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -426,6 +437,7 @@ add_task(async function test_load_pages_tabhistory() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -448,6 +460,7 @@ add_task(async function test_load_pages_tabhistory() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -467,6 +480,7 @@ add_task(async function test_load_pages_tabhistory() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -489,6 +503,7 @@ add_task(async function test_load_pages_tabhistory() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -511,6 +526,7 @@ add_task(async function test_load_pages_tabhistory() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_spa_multi_tab.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_spa_multi_tab.js
index 478a995e97..b5e54eb6bc 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_spa_multi_tab.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_spa_multi_tab.js
@@ -85,6 +85,7 @@ add_task(async function test_load_serps_and_click_related_searches() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -111,6 +112,7 @@ add_task(async function test_load_serps_and_click_related_searches() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -137,6 +139,7 @@ add_task(async function test_load_serps_and_click_related_searches() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -164,6 +167,7 @@ add_task(async function test_load_serps_and_click_related_searches() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -184,6 +188,7 @@ add_task(async function test_load_serps_and_click_related_searches() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -210,6 +215,7 @@ add_task(async function test_load_serps_and_click_related_searches() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -229,6 +235,7 @@ add_task(async function test_load_serps_and_click_related_searches() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -249,6 +256,7 @@ add_task(async function test_load_serps_and_click_related_searches() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [],
     },
@@ -262,6 +270,7 @@ add_task(async function test_load_serps_and_click_related_searches() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [],
     },
@@ -317,6 +326,7 @@ add_task(async function test_different_sources_click_ad() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -337,6 +347,7 @@ add_task(async function test_different_sources_click_ad() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -363,6 +374,7 @@ add_task(async function test_different_sources_click_ad() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -386,6 +398,7 @@ add_task(async function test_different_sources_click_ad() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -450,6 +463,7 @@ add_task(async function test_different_sources_click_redirect_ad_in_new_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -470,6 +484,7 @@ add_task(async function test_different_sources_click_redirect_ad_in_new_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -496,6 +511,7 @@ add_task(async function test_different_sources_click_redirect_ad_in_new_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -519,6 +535,7 @@ add_task(async function test_different_sources_click_redirect_ad_in_new_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -574,6 +591,7 @@ add_task(async function test_update_query_params_after_search() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -600,6 +618,7 @@ add_task(async function test_update_query_params_after_search() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -620,6 +639,7 @@ add_task(async function test_update_query_params_after_search() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -673,6 +693,7 @@ add_task(async function test_update_query_params() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -699,6 +720,7 @@ add_task(async function test_update_query_params() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -719,6 +741,7 @@ add_task(async function test_update_query_params() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -779,6 +802,7 @@ add_task(async function test_update_query_params_multiple_related() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -805,6 +829,7 @@ add_task(async function test_update_query_params_multiple_related() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -825,6 +850,7 @@ add_task(async function test_update_query_params_multiple_related() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -851,6 +877,7 @@ add_task(async function test_update_query_params_multiple_related() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
diff --git a/browser/components/search/test/browser/telemetry/browser_search_telemetry_spa_single_tab.js b/browser/components/search/test/browser/telemetry/browser_search_telemetry_spa_single_tab.js
index 4f85c6cfa1..360e531c14 100644
--- a/browser/components/search/test/browser/telemetry/browser_search_telemetry_spa_single_tab.js
+++ b/browser/components/search/test/browser/telemetry/browser_search_telemetry_spa_single_tab.js
@@ -37,6 +37,7 @@ add_task(async function test_load_serp() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -95,6 +96,7 @@ add_task(async function test_load_serp_and_push_unrelated_state() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -134,6 +136,7 @@ add_task(async function test_load_serp_and_load_non_serp_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -176,6 +179,7 @@ add_task(async function test_load_serp_and_click_ad() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -207,6 +211,7 @@ add_task(async function test_load_serp_and_click_ad() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -251,6 +256,7 @@ add_task(async function test_load_serp_and_click_redirect_ad() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -294,6 +300,7 @@ add_task(async function test_load_serp_and_click_redirect_ad_in_new_tab() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -338,6 +345,7 @@ add_task(async function test_load_serp_click_a_related_search() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -363,6 +371,7 @@ add_task(async function test_load_serp_click_a_related_search() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -401,6 +410,7 @@ add_task(async function test_load_serp_click_a_related_search_click_ad() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -426,6 +436,7 @@ add_task(async function test_load_serp_click_a_related_search_click_ad() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -470,6 +481,7 @@ add_task(async function test_load_serp_click_non_serp_tab_click_all() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -509,6 +521,7 @@ add_task(async function test_load_serp_click_non_serp_tab_click_all() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -534,6 +547,7 @@ add_task(async function test_load_serp_click_non_serp_tab_click_all() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -576,6 +590,7 @@ add_task(async function test_load_serp_and_use_back_and_forward() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       engagements: [
         {
@@ -601,6 +616,7 @@ add_task(async function test_load_serp_and_use_back_and_forward() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -623,6 +639,7 @@ add_task(async function test_load_serp_and_use_back_and_forward() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
@@ -645,6 +662,7 @@ add_task(async function test_load_serp_and_use_back_and_forward() {
         is_shopping_page: "false",
         is_private: "false",
         shopping_tab_displayed: "false",
+        is_signed_in: "false",
       },
       adImpressions: [
         {
diff --git a/browser/components/search/test/marionette/telemetry/test_ping_submitted.py b/browser/components/search/test/marionette/telemetry/test_ping_submitted.py
index cefe2d72d1..0ad2095b30 100644
--- a/browser/components/search/test/marionette/telemetry/test_ping_submitted.py
+++ b/browser/components/search/test/marionette/telemetry/test_ping_submitted.py
@@ -63,6 +63,8 @@ class TestPingSubmitted(MarionetteTestCase):
             provider: "example",
             tagged: "true",
             num_ads_clicked: "0",
+            num_ads_hidden: "0",
+            num_ads_loaded: "2",
             num_ads_visible: "2",
         });
             """
diff --git a/browser/components/search/test/unit/test_ui_schemas_valid.js b/browser/components/search/test/unit/test_ui_schemas_valid.js
index 3396f38238..17fb802085 100644
--- a/browser/components/search/test/unit/test_ui_schemas_valid.js
+++ b/browser/components/search/test/unit/test_ui_schemas_valid.js
@@ -7,7 +7,7 @@ let schemas = [
   ["search-telemetry-v2-schema.json", "search-telemetry-v2-ui-schema.json"],
 ];
 
-async function checkUISchemaValid(configSchema, uiSchema) {
+function checkUISchemaValid(configSchema, uiSchema) {
   for (let key of Object.keys(configSchema.properties)) {
     Assert.ok(
       uiSchema["ui:order"].includes(key),
@@ -26,6 +26,6 @@ add_task(async function test_ui_schemas_valid() {
       PathUtils.join(do_get_cwd().path, uiSchema)
     );
 
-    await checkUISchemaValid(schemaData, uiSchemaData);
+    checkUISchemaValid(schemaData, uiSchemaData);
   }
 });
diff --git a/browser/components/search/test/unit/test_urlTelemetry_generic.js b/browser/components/search/test/unit/test_urlTelemetry_generic.js
index e967002421..556e167681 100644
--- a/browser/components/search/test/unit/test_urlTelemetry_generic.js
+++ b/browser/components/search/test/unit/test_urlTelemetry_generic.js
@@ -7,7 +7,6 @@ ChromeUtils.defineESModuleGetters(this, {
   PrivateBrowsingUtils: "resource://gre/modules/PrivateBrowsingUtils.sys.mjs",
   SearchSERPTelemetry: "resource:///modules/SearchSERPTelemetry.sys.mjs",
   SearchSERPTelemetryUtils: "resource:///modules/SearchSERPTelemetry.sys.mjs",
-  SearchUtils: "resource://gre/modules/SearchUtils.sys.mjs",
   TelemetryTestUtils: "resource://testing-common/TelemetryTestUtils.sys.mjs",
   sinon: "resource://testing-common/Sinon.sys.mjs",
 });
@@ -64,10 +63,11 @@ const TESTS = [
       provider: "example",
       tagged: "true",
       partner_code: "ff",
+      source: "unknown",
       is_shopping_page: "false",
       is_private: "false",
       shopping_tab_displayed: "false",
-      source: "unknown",
+      is_signed_in: "false",
     },
   },
   {
@@ -81,10 +81,11 @@ const TESTS = [
       provider: "example",
       tagged: "true",
       partner_code: "ff",
+      source: "unknown",
       is_shopping_page: "true",
       is_private: "false",
       shopping_tab_displayed: "false",
-      source: "unknown",
+      is_signed_in: "false",
     },
   },
   {
@@ -98,10 +99,11 @@ const TESTS = [
       provider: "example",
       tagged: "true",
       partner_code: "tb",
+      source: "unknown",
       is_shopping_page: "false",
       is_private: "false",
       shopping_tab_displayed: "false",
-      source: "unknown",
+      is_signed_in: "false",
     },
   },
   {
@@ -115,10 +117,11 @@ const TESTS = [
       provider: "example",
       tagged: "false",
       partner_code: "foo",
+      source: "unknown",
       is_shopping_page: "false",
       is_private: "false",
       shopping_tab_displayed: "false",
-      source: "unknown",
+      is_signed_in: "false",
     },
   },
   {
@@ -132,10 +135,11 @@ const TESTS = [
       provider: "example",
       tagged: "false",
       partner_code: "other",
+      source: "unknown",
       is_shopping_page: "false",
       is_private: "false",
       shopping_tab_displayed: "false",
-      source: "unknown",
+      is_signed_in: "false",
     },
   },
   {
@@ -149,10 +153,11 @@ const TESTS = [
       provider: "example",
       tagged: "false",
       partner_code: "other",
+      source: "unknown",
       is_shopping_page: "false",
       is_private: "false",
       shopping_tab_displayed: "false",
-      source: "unknown",
+      is_signed_in: "false",
     },
   },
   {
@@ -166,10 +171,11 @@ const TESTS = [
       provider: "example",
       tagged: "false",
       partner_code: "",
+      source: "unknown",
       is_shopping_page: "false",
       is_private: "false",
       shopping_tab_displayed: "false",
-      source: "unknown",
+      is_signed_in: "false",
     },
   },
   {
@@ -183,10 +189,11 @@ const TESTS = [
       provider: "example",
       tagged: "false",
       partner_code: "",
+      source: "unknown",
       is_shopping_page: "false",
       is_private: "false",
       shopping_tab_displayed: "false",
-      source: "unknown",
+      is_signed_in: "false",
     },
   },
   {
@@ -200,10 +207,11 @@ const TESTS = [
       provider: "example2",
       tagged: "false",
       partner_code: "",
+      source: "unknown",
       is_shopping_page: "false",
       is_private: "false",
       shopping_tab_displayed: "false",
-      source: "unknown",
+      is_signed_in: "false",
     },
   },
 ];
@@ -259,10 +267,6 @@ async function testAdUrlClicked(serpUrl, adUrl, expectedAdKey) {
 do_get_profile();
 
 add_task(async function setup() {
-  Services.prefs.setBoolPref(
-    SearchUtils.BROWSER_SEARCH_PREF + "serpEventTelemetry.enabled",
-    true
-  );
   Services.fog.initializeFOG();
   await SearchSERPTelemetry.init();
   SearchSERPTelemetry.overrideSearchTelemetryForTests(TEST_PROVIDER_INFO);