diff --git a/dom/push/test/xpcshell/head.js b/dom/push/test/xpcshell/head.js
index ac312b5ab83b..6d77d0cb63e5 100644
--- a/dom/push/test/xpcshell/head.js
+++ b/dom/push/test/xpcshell/head.js
@@ -168,23 +168,6 @@ function makeStub(target, stubs) {
   });
 }
 
-/**
- * Disables `push` and `pushsubscriptionchange` service worker events for the
- * given scopes. These events cause crashes in xpcshell, so we disable them
- * for testing nsIPushNotificationService.
- *
- * @param {String[]} scopes A list of scope URLs.
- */
-function disableServiceWorkerEvents(...scopes) {
-  for (let scope of scopes) {
-    Services.perms.add(
-      Services.io.newURI(scope, null, null),
-      'desktop-notification',
-      Ci.nsIPermissionManager.DENY_ACTION
-    );
-  }
-}
-
 /**
  * Sets default PushService preferences. All pref names are prefixed with
  * `dom.push.`; any additional preferences will override the defaults.
@@ -221,6 +204,8 @@ function setPrefs(prefs = {}) {
     'http2.reset_retry_count_after_ms': 60000,
     maxQuotaPerSubscription: 16,
     quotaUpdateDelay: 3000,
+    'testing.notifyWorkers': false,
+    'testing.notifyAllObservers': true,
   }, prefs);
   for (let pref in defaultPrefs) {
     servicePrefs.set(pref, defaultPrefs[pref]);
diff --git a/dom/push/test/xpcshell/test_clear_origin_data.js b/dom/push/test/xpcshell/test_clear_origin_data.js
index 6b1d430d0055..475ef3cea95a 100644
--- a/dom/push/test/xpcshell/test_clear_origin_data.js
+++ b/dom/push/test/xpcshell/test_clear_origin_data.js
@@ -41,9 +41,6 @@ function run_test() {
     requestTimeout: 1000,
     retryBaseInterval: 150
   });
-  disableServiceWorkerEvents(
-    'https://example.org/1'
-  );
   run_next_test();
 }
 
diff --git a/dom/push/test/xpcshell/test_notification_ack.js b/dom/push/test/xpcshell/test_notification_ack.js
index bf283542990b..dbb695483998 100644
--- a/dom/push/test/xpcshell/test_notification_ack.js
+++ b/dom/push/test/xpcshell/test_notification_ack.js
@@ -10,11 +10,6 @@ var userAgentID = '5ab1d1df-7a3d-4024-a469-b9e1bb399fad';
 function run_test() {
   do_get_profile();
   setPrefs({userAgentID});
-  disableServiceWorkerEvents(
-    'https://example.org/1',
-    'https://example.org/2',
-    'https://example.org/3'
-  );
   run_next_test();
 }
 
@@ -50,11 +45,9 @@ add_task(function* test_notification_ack() {
     yield db.put(record);
   }
 
-  let notifyPromise = Promise.all([
-    promiseObserverNotification('push-notification'),
-    promiseObserverNotification('push-notification'),
-    promiseObserverNotification('push-notification')
-  ]);
+  let notifyCount = 0;
+  let notifyPromise = promiseObserverNotification('push-message', () =>
+    ++notifyCount == 3);
 
   let acks = 0;
   let ackDone;
diff --git a/dom/push/test/xpcshell/test_notification_data.js b/dom/push/test/xpcshell/test_notification_data.js
index 92b231ef28a4..b49b246a19a1 100644
--- a/dom/push/test/xpcshell/test_notification_data.js
+++ b/dom/push/test/xpcshell/test_notification_data.js
@@ -218,9 +218,9 @@ add_task(function* test_notification_ack_data() {
   ];
 
   let sendAndReceive = testData => {
-    let messageReceived = promiseObserverNotification('push-notification', (subject, data) => {
-      let notification = subject.QueryInterface(Ci.nsIPushObserverNotification);
-      equal(notification.data, testData.receive.data,
+    let messageReceived = promiseObserverNotification('push-message', (subject, data) => {
+      let notification = subject.QueryInterface(Ci.nsIPushMessage);
+      equal(notification.text(), testData.receive.data,
             'Check data for notification ' + testData.version);
       equal(data, testData.receive.scope,
             'Check scope for notification ' + testData.version);
diff --git a/dom/push/test/xpcshell/test_notification_duplicate.js b/dom/push/test/xpcshell/test_notification_duplicate.js
index ed6385f70637..8b97a2393d75 100644
--- a/dom/push/test/xpcshell/test_notification_duplicate.js
+++ b/dom/push/test/xpcshell/test_notification_duplicate.js
@@ -12,10 +12,6 @@ function run_test() {
   setPrefs({
     userAgentID: userAgentID,
   });
-  disableServiceWorkerEvents(
-    'https://example.com/1',
-    'https://example.com/2'
-  );
   run_next_test();
 }
 
@@ -44,7 +40,7 @@ add_task(function* test_notification_duplicate() {
     yield db.put(record);
   }
 
-  let notifyPromise = promiseObserverNotification('push-notification');
+  let notifyPromise = promiseObserverNotification('push-message');
 
   let acks = 0;
   let ackDone;
diff --git a/dom/push/test/xpcshell/test_notification_error.js b/dom/push/test/xpcshell/test_notification_error.js
index 91ce131c8aa3..56a4521f1706 100644
--- a/dom/push/test/xpcshell/test_notification_error.js
+++ b/dom/push/test/xpcshell/test_notification_error.js
@@ -12,11 +12,6 @@ function run_test() {
   setPrefs({
     userAgentID: userAgentID,
   });
-  disableServiceWorkerEvents(
-    'https://example.com/a',
-    'https://example.com/b',
-    'https://example.com/c'
-  );
   run_next_test();
 }
 
@@ -54,16 +49,9 @@ add_task(function* test_notification_error() {
     yield db.put(record);
   }
 
-  let notifyPromise = Promise.all([
-    promiseObserverNotification(
-      'push-notification',
-      (subject, data) => data == 'https://example.com/a'
-    ),
-    promiseObserverNotification(
-      'push-notification',
-      (subject, data) => data == 'https://example.com/c'
-    )
-  ]);
+  let scopes = [];
+  let notifyPromise = promiseObserverNotification('push-message', (subject, data) =>
+    scopes.push(data) == 2);
 
   let ackDone;
   let ackPromise = new Promise(resolve => ackDone = after(records.length, resolve));
@@ -99,20 +87,15 @@ add_task(function* test_notification_error() {
     }
   });
 
-  let [a, c] = yield waitForPromise(
+  yield waitForPromise(
     notifyPromise,
     DEFAULT_TIMEOUT,
     'Timed out waiting for notifications'
   );
-  let aPush = a.subject.QueryInterface(Ci.nsIPushObserverNotification);
-  equal(aPush.pushEndpoint, 'https://example.org/update/success-1',
-    'Wrong endpoint for notification A');
-  equal(aPush.version, 2, 'Wrong version for notification A');
-
-  let cPush = c.subject.QueryInterface(Ci.nsIPushObserverNotification);
-  equal(cPush.pushEndpoint, 'https://example.org/update/success-2',
-    'Wrong endpoint for notification C');
-  equal(cPush.version, 4, 'Wrong version for notification C');
+  ok(scopes.includes('https://example.com/a'),
+    'Missing scope for notification A');
+  ok(scopes.includes('https://example.com/c'),
+    'Missing scope for notification C');
 
   yield waitForPromise(ackPromise, DEFAULT_TIMEOUT,
     'Timed out waiting for acknowledgements');
diff --git a/dom/push/test/xpcshell/test_notification_http2.js b/dom/push/test/xpcshell/test_notification_http2.js
index a7c03ee7ef2e..44c53c7082d6 100644
--- a/dom/push/test/xpcshell/test_notification_http2.js
+++ b/dom/push/test/xpcshell/test_notification_http2.js
@@ -35,11 +35,8 @@ function run_test() {
 
   prefs.setIntPref("network.http.speculative-parallel-limit", oldPref);
 
-  disableServiceWorkerEvents(
-    'https://example.com/page/1',
-    'https://example.com/page/2',
-    'https://example.com/page/3'
-  );
+  servicePrefs.set('testing.notifyWorkers', false);
+  servicePrefs.set('testing.notifyAllObservers', true);
 
   run_next_test();
 }
@@ -124,24 +121,24 @@ add_task(function* test_pushNotifications() {
   }
 
   let notifyPromise = Promise.all([
-    promiseObserverNotification('push-notification', function(subject, data) {
-      var notification = subject.QueryInterface(Ci.nsIPushObserverNotification);
-      if (notification && (data == "https://example.com/page/1")){
-        equal(subject.data, "Some message", "decoded message is incorrect");
+    promiseObserverNotification('push-message', function(subject, data) {
+      var message = subject.QueryInterface(Ci.nsIPushMessage);
+      if (message && (data == "https://example.com/page/1")){
+        equal(message.text(), "Some message", "decoded message is incorrect");
         return true;
       }
     }),
-    promiseObserverNotification('push-notification', function(subject, data) {
-      var notification = subject.QueryInterface(Ci.nsIPushObserverNotification);
-      if (notification && (data == "https://example.com/page/2")){
-        equal(subject.data, "Some message", "decoded message is incorrect");
+    promiseObserverNotification('push-message', function(subject, data) {
+      var message = subject.QueryInterface(Ci.nsIPushMessage);
+      if (message && (data == "https://example.com/page/2")){
+        equal(message.text(), "Some message", "decoded message is incorrect");
         return true;
       }
     }),
-    promiseObserverNotification('push-notification', function(subject, data) {
-      var notification = subject.QueryInterface(Ci.nsIPushObserverNotification);
-      if (notification && (data == "https://example.com/page/3")){
-        equal(subject.data, "Some message", "decoded message is incorrect");
+    promiseObserverNotification('push-message', function(subject, data) {
+      var message = subject.QueryInterface(Ci.nsIPushMessage);
+      if (message && (data == "https://example.com/page/3")){
+        equal(message.text(), "Some message", "decoded message is incorrect");
         return true;
       }
     })
diff --git a/dom/push/test/xpcshell/test_notification_incomplete.js b/dom/push/test/xpcshell/test_notification_incomplete.js
index ca41ad9e30fc..f78816c62815 100644
--- a/dom/push/test/xpcshell/test_notification_incomplete.js
+++ b/dom/push/test/xpcshell/test_notification_incomplete.js
@@ -12,12 +12,6 @@ function run_test() {
   setPrefs({
     userAgentID: userAgentID,
   });
-  disableServiceWorkerEvents(
-    'https://example.com/page/1',
-    'https://example.com/page/2',
-    'https://example.com/page/3',
-    'https://example.com/page/4'
-  );
   run_next_test();
 }
 
@@ -57,9 +51,12 @@ add_task(function* test_notification_incomplete() {
     yield db.put(record);
   }
 
-  Services.obs.addObserver(function observe(subject, topic, data) {
+  function observeMessage(subject, topic, data) {
     ok(false, 'Should not deliver malformed updates');
-  }, 'push-notification', false);
+  }
+  do_register_cleanup(() =>
+    Services.obs.removeObserver(observeMessage, 'push-message'));
+  Services.obs.addObserver(observeMessage, 'push-message', false);
 
   let notificationDone;
   let notificationPromise = new Promise(resolve => notificationDone = after(2, resolve));
diff --git a/dom/push/test/xpcshell/test_notification_version_string.js b/dom/push/test/xpcshell/test_notification_version_string.js
index c4c7597df585..e55293bf32bd 100644
--- a/dom/push/test/xpcshell/test_notification_version_string.js
+++ b/dom/push/test/xpcshell/test_notification_version_string.js
@@ -12,9 +12,6 @@ function run_test() {
   setPrefs({
     userAgentID: userAgentID,
   });
-  disableServiceWorkerEvents(
-    'https://example.net/case'
-  );
   run_next_test();
 }
 
@@ -31,7 +28,7 @@ add_task(function* test_notification_version_string() {
     systemRecord: true,
   });
 
-  let notifyPromise = promiseObserverNotification('push-notification');
+  let notifyPromise = promiseObserverNotification('push-message');
 
   let ackDone;
   let ackPromise = new Promise(resolve => ackDone = resolve);
@@ -65,11 +62,7 @@ add_task(function* test_notification_version_string() {
     DEFAULT_TIMEOUT,
     'Timed out waiting for string notification'
   );
-  let message = notification.QueryInterface(Ci.nsIPushObserverNotification);
-  equal(scope, 'https://example.com/page/1', 'Wrong scope');
-  equal(message.pushEndpoint, 'https://example.org/updates/1',
-    'Wrong push endpoint');
-  strictEqual(message.version, 4, 'Wrong version');
+  equal(notification, null, 'Unexpected data for Simple Push message');
 
   yield waitForPromise(ackPromise, DEFAULT_TIMEOUT,
     'Timed out waiting for string acknowledgement');
diff --git a/dom/push/test/xpcshell/test_quota_exceeded.js b/dom/push/test/xpcshell/test_quota_exceeded.js
index b6c4b4b50512..383336579ec0 100644
--- a/dom/push/test/xpcshell/test_quota_exceeded.js
+++ b/dom/push/test/xpcshell/test_quota_exceeded.js
@@ -82,7 +82,7 @@ add_task(function* test_expiration_origin_threshold() {
   // different scopes, so each can send 5 notifications before we remove
   // their subscription.
   let updates = 0;
-  let notifyPromise = promiseObserverNotification('push-notification', (subject, data) => {
+  let notifyPromise = promiseObserverNotification('push-message', (subject, data) => {
     updates++;
     return updates == 6;
   });
diff --git a/dom/push/test/xpcshell/test_quota_with_notification.js b/dom/push/test/xpcshell/test_quota_with_notification.js
index 23a7bb110aa8..4833a2a37fdc 100644
--- a/dom/push/test/xpcshell/test_quota_with_notification.js
+++ b/dom/push/test/xpcshell/test_quota_with_notification.js
@@ -55,7 +55,7 @@ add_task(function* test_expiration_origin_threshold() {
   let numMessages = 10;
 
   let updates = 0;
-  let notifyPromise = promiseObserverNotification('push-notification', (subject, data) => {
+  let notifyPromise = promiseObserverNotification('push-message', (subject, data) => {
     updates++;
     return updates == numMessages;
   });
diff --git a/dom/push/test/xpcshell/test_register_5xxCode_http2.js b/dom/push/test/xpcshell/test_register_5xxCode_http2.js
index 77dc7fd4eadd..ab27205032a7 100644
--- a/dom/push/test/xpcshell/test_register_5xxCode_http2.js
+++ b/dom/push/test/xpcshell/test_register_5xxCode_http2.js
@@ -56,9 +56,6 @@ function run_test() {
     'http2.retryInterval': 1000,
     'http2.maxRetries': 2
   });
-  disableServiceWorkerEvents(
-    'https://example.com/retry5xxCode'
-  );
 
   run_next_test();
 }
diff --git a/dom/push/test/xpcshell/test_register_case.js b/dom/push/test/xpcshell/test_register_case.js
index 69ce048a98c6..343192259c3e 100644
--- a/dom/push/test/xpcshell/test_register_case.js
+++ b/dom/push/test/xpcshell/test_register_case.js
@@ -10,9 +10,6 @@ const userAgentID = '1760b1f5-c3ba-40e3-9344-adef7c18ab12';
 function run_test() {
   do_get_profile();
   setPrefs();
-  disableServiceWorkerEvents(
-    'https://example.net/case'
-  );
   run_next_test();
 }
 
diff --git a/dom/push/test/xpcshell/test_register_error_http2.js b/dom/push/test/xpcshell/test_register_error_http2.js
index 3e363380efb4..f8f29225ee22 100644
--- a/dom/push/test/xpcshell/test_register_error_http2.js
+++ b/dom/push/test/xpcshell/test_register_error_http2.js
@@ -23,10 +23,6 @@ function run_test() {
 
   tlsProfile = prefs.getBoolPref("network.http.spdy.enforce-tls-profile");
 
-  disableServiceWorkerEvents(
-    'https://example.net/page/invalid-response'
-  );
-
   serverURL = "https://localhost:" + serverPort;
 
   run_next_test();
diff --git a/dom/push/test/xpcshell/test_register_flush.js b/dom/push/test/xpcshell/test_register_flush.js
index c341a464ed2b..3b0e3d8d0043 100644
--- a/dom/push/test/xpcshell/test_register_flush.js
+++ b/dom/push/test/xpcshell/test_register_flush.js
@@ -15,10 +15,6 @@ function run_test() {
     requestTimeout: 1000,
     retryBaseInterval: 150
   });
-  disableServiceWorkerEvents(
-    'https://example.com/page/1',
-    'https://example.com/page/2'
-  );
   run_next_test();
 }
 
@@ -36,7 +32,7 @@ add_task(function* test_register_flush() {
   };
   yield db.put(record);
 
-  let notifyPromise = promiseObserverNotification('push-notification');
+  let notifyPromise = promiseObserverNotification('push-message');
 
   let ackDone;
   let ackPromise = new Promise(resolve => ackDone = after(2, resolve));
diff --git a/dom/push/test/xpcshell/test_register_invalid_channel.js b/dom/push/test/xpcshell/test_register_invalid_channel.js
index a0d3c3e204a0..8d29d5fa9c2e 100644
--- a/dom/push/test/xpcshell/test_register_invalid_channel.js
+++ b/dom/push/test/xpcshell/test_register_invalid_channel.js
@@ -11,9 +11,6 @@ const channelID = 'cafed00d';
 function run_test() {
   do_get_profile();
   setPrefs();
-  disableServiceWorkerEvents(
-    'https://example.com/invalid-channel'
-  );
   run_next_test();
 }
 
diff --git a/dom/push/test/xpcshell/test_register_invalid_endpoint.js b/dom/push/test/xpcshell/test_register_invalid_endpoint.js
index 208d9320e5bc..ffafc64cdab0 100644
--- a/dom/push/test/xpcshell/test_register_invalid_endpoint.js
+++ b/dom/push/test/xpcshell/test_register_invalid_endpoint.js
@@ -11,9 +11,6 @@ const channelID = 'c0660af8-b532-4931-81f0-9fd27a12d6ab';
 function run_test() {
   do_get_profile();
   setPrefs();
-  disableServiceWorkerEvents(
-    'https://example.net/page/invalid-endpoint'
-  );
   run_next_test();
 }
 
diff --git a/dom/push/test/xpcshell/test_register_invalid_json.js b/dom/push/test/xpcshell/test_register_invalid_json.js
index adfa32928bb2..aa3b5c055bb9 100644
--- a/dom/push/test/xpcshell/test_register_invalid_json.js
+++ b/dom/push/test/xpcshell/test_register_invalid_json.js
@@ -14,9 +14,6 @@ function run_test() {
     requestTimeout: 1000,
     retryBaseInterval: 150
   });
-  disableServiceWorkerEvents(
-    'https://example.net/page/invalid-json'
-  );
   run_next_test();
 }
 
diff --git a/dom/push/test/xpcshell/test_register_no_id.js b/dom/push/test/xpcshell/test_register_no_id.js
index 6fadfef30055..a562abf44731 100644
--- a/dom/push/test/xpcshell/test_register_no_id.js
+++ b/dom/push/test/xpcshell/test_register_no_id.js
@@ -15,9 +15,6 @@ function run_test() {
     requestTimeout: 1000,
     retryBaseInterval: 150
   });
-  disableServiceWorkerEvents(
-    'https://example.com/incomplete'
-  );
   run_next_test();
 }
 
diff --git a/dom/push/test/xpcshell/test_register_request_queue.js b/dom/push/test/xpcshell/test_register_request_queue.js
index 47c430a32a0b..047846372bf9 100644
--- a/dom/push/test/xpcshell/test_register_request_queue.js
+++ b/dom/push/test/xpcshell/test_register_request_queue.js
@@ -11,9 +11,6 @@ function run_test() {
     requestTimeout: 1000,
     retryBaseInterval: 150
   });
-  disableServiceWorkerEvents(
-    'https://example.com/page/1'
-  );
   run_next_test();
 }
 
diff --git a/dom/push/test/xpcshell/test_register_rollback.js b/dom/push/test/xpcshell/test_register_rollback.js
index aa7f49b2d1e0..35809a8189a2 100644
--- a/dom/push/test/xpcshell/test_register_rollback.js
+++ b/dom/push/test/xpcshell/test_register_rollback.js
@@ -15,9 +15,6 @@ function run_test() {
     requestTimeout: 1000,
     retryBaseInterval: 150
   });
-  disableServiceWorkerEvents(
-    'https://example.com/storage-error'
-  );
   run_next_test();
 }
 
diff --git a/dom/push/test/xpcshell/test_register_success.js b/dom/push/test/xpcshell/test_register_success.js
index a0b52b54095e..68ead06637e8 100644
--- a/dom/push/test/xpcshell/test_register_success.js
+++ b/dom/push/test/xpcshell/test_register_success.js
@@ -15,9 +15,6 @@ function run_test() {
     requestTimeout: 1000,
     retryBaseInterval: 150
   });
-  disableServiceWorkerEvents(
-    'https://example.org/1'
-  );
   run_next_test();
 }
 
diff --git a/dom/push/test/xpcshell/test_register_success_http2.js b/dom/push/test/xpcshell/test_register_success_http2.js
index a48c77793041..5217ebbfa3a9 100644
--- a/dom/push/test/xpcshell/test_register_success_http2.js
+++ b/dom/push/test/xpcshell/test_register_success_http2.js
@@ -37,11 +37,6 @@ function run_test() {
 
   serverURL = "https://localhost:" + serverPort;
 
-  disableServiceWorkerEvents(
-    'https://example.org/1',
-    'https://example.org/no_receiptEndpoint'
-  );
-
   run_next_test();
 }
 
diff --git a/dom/push/test/xpcshell/test_register_timeout.js b/dom/push/test/xpcshell/test_register_timeout.js
index 05a46ecc837b..812077c447eb 100644
--- a/dom/push/test/xpcshell/test_register_timeout.js
+++ b/dom/push/test/xpcshell/test_register_timeout.js
@@ -14,9 +14,6 @@ function run_test() {
     requestTimeout: 1000,
     retryBaseInterval: 150
   });
-  disableServiceWorkerEvents(
-    'https://example.net/page/timeout'
-  );
   run_next_test();
 }
 
diff --git a/dom/push/test/xpcshell/test_register_wrong_id.js b/dom/push/test/xpcshell/test_register_wrong_id.js
index 20bb5d4d396a..5b51adc4da9d 100644
--- a/dom/push/test/xpcshell/test_register_wrong_id.js
+++ b/dom/push/test/xpcshell/test_register_wrong_id.js
@@ -16,9 +16,6 @@ function run_test() {
     requestTimeout: 1000,
     retryBaseInterval: 150
   });
-  disableServiceWorkerEvents(
-    'https://example.com/mismatched'
-  );
   run_next_test();
 }
 
diff --git a/dom/push/test/xpcshell/test_register_wrong_type.js b/dom/push/test/xpcshell/test_register_wrong_type.js
index 2b91d4e571c3..9ab06e849f51 100644
--- a/dom/push/test/xpcshell/test_register_wrong_type.js
+++ b/dom/push/test/xpcshell/test_register_wrong_type.js
@@ -13,9 +13,6 @@ function run_test() {
     requestTimeout: 1000,
     retryBaseInterval: 150
   });
-  disableServiceWorkerEvents(
-    'https://example.com/mistyped'
-  );
   run_next_test();
 }
 
diff --git a/dom/push/test/xpcshell/test_registration_success_http2.js b/dom/push/test/xpcshell/test_registration_success_http2.js
index 7b3bdb133b19..e7d3c897f3ab 100644
--- a/dom/push/test/xpcshell/test_registration_success_http2.js
+++ b/dom/push/test/xpcshell/test_registration_success_http2.js
@@ -19,12 +19,6 @@ function run_test() {
   do_get_profile();
   prefs = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefBranch);
 
-  disableServiceWorkerEvents(
-    'https://example.net/a',
-    'https://example.net/b',
-    'https://example.net/c'
-  );
-
   run_next_test();
 }
 
diff --git a/dom/push/test/xpcshell/test_resubscribe_4xxCode_http2.js b/dom/push/test/xpcshell/test_resubscribe_4xxCode_http2.js
index c8b43c3f4027..b3b8d2436659 100644
--- a/dom/push/test/xpcshell/test_resubscribe_4xxCode_http2.js
+++ b/dom/push/test/xpcshell/test_resubscribe_4xxCode_http2.js
@@ -48,9 +48,8 @@ function run_test() {
 
   do_get_profile();
 
-  disableServiceWorkerEvents(
-    'https://example.com/page'
-  );
+  servicePrefs.set('testing.notifyWorkers', false);
+  servicePrefs.set('testing.notifyAllObservers', true);
 
   run_next_test();
 }
diff --git a/dom/push/test/xpcshell/test_resubscribe_5xxCode_http2.js b/dom/push/test/xpcshell/test_resubscribe_5xxCode_http2.js
index 0f7739e2ffcf..b8372130a9d6 100644
--- a/dom/push/test/xpcshell/test_resubscribe_5xxCode_http2.js
+++ b/dom/push/test/xpcshell/test_resubscribe_5xxCode_http2.js
@@ -56,9 +56,6 @@ function run_test() {
     'http2.retryInterval': 1000,
     'http2.maxRetries': 2
   });
-  disableServiceWorkerEvents(
-    'https://example.com/page'
-  );
 
   run_next_test();
 }
diff --git a/dom/push/test/xpcshell/test_resubscribe_listening_for_msg_error_http2.js b/dom/push/test/xpcshell/test_resubscribe_listening_for_msg_error_http2.js
index 7416862c5906..5044f6483f85 100644
--- a/dom/push/test/xpcshell/test_resubscribe_listening_for_msg_error_http2.js
+++ b/dom/push/test/xpcshell/test_resubscribe_listening_for_msg_error_http2.js
@@ -44,9 +44,6 @@ function run_test() {
     'http2.retryInterval': 1000,
     'http2.maxRetries': 2
   });
-  disableServiceWorkerEvents(
-    'https://example.com/page'
-  );
 
   run_next_test();
 }
diff --git a/dom/push/test/xpcshell/test_unregister_success_http2.js b/dom/push/test/xpcshell/test_unregister_success_http2.js
index 5b3f6719df0b..b6c77ca3d6d0 100644
--- a/dom/push/test/xpcshell/test_unregister_success_http2.js
+++ b/dom/push/test/xpcshell/test_unregister_success_http2.js
@@ -34,10 +34,6 @@ function run_test() {
 
   prefs.setIntPref("network.http.speculative-parallel-limit", oldPref);
 
-  disableServiceWorkerEvents(
-    'https://example.com/page/unregister-success'
-  );
-
   run_next_test();
 }
 
diff --git a/dom/push/test/xpcshell/test_updateRecordNoEncryptionKeys_http2.js b/dom/push/test/xpcshell/test_updateRecordNoEncryptionKeys_http2.js
index 093c2335665b..db1196585e6d 100644
--- a/dom/push/test/xpcshell/test_updateRecordNoEncryptionKeys_http2.js
+++ b/dom/push/test/xpcshell/test_updateRecordNoEncryptionKeys_http2.js
@@ -32,9 +32,6 @@ function run_test() {
     'http2.retryInterval': 1000,
     'http2.maxRetries': 2
   });
-  disableServiceWorkerEvents(
-    'https://example.com/page'
-  );
 
   run_next_test();
 }
diff --git a/dom/push/test/xpcshell/test_updateRecordNoEncryptionKeys_ws.js b/dom/push/test/xpcshell/test_updateRecordNoEncryptionKeys_ws.js
index 3a16d90e1b16..353cece05041 100644
--- a/dom/push/test/xpcshell/test_updateRecordNoEncryptionKeys_ws.js
+++ b/dom/push/test/xpcshell/test_updateRecordNoEncryptionKeys_ws.js
@@ -12,11 +12,6 @@ function run_test() {
   setPrefs({
     userAgentID,
   });
-  disableServiceWorkerEvents(
-    'https://example.com/page/1',
-    'https://example.com/page/2',
-    'https://example.com/page/3'
-  );
   run_next_test();
 }