diff --git a/app/assets/javascripts/discourse/app/lib/keyboard-shortcuts.js b/app/assets/javascripts/discourse/app/lib/keyboard-shortcuts.js
index 7457b705b1f..a5cbc9e267b 100644
--- a/app/assets/javascripts/discourse/app/lib/keyboard-shortcuts.js
+++ b/app/assets/javascripts/discourse/app/lib/keyboard-shortcuts.js
@@ -13,7 +13,7 @@ import domUtils from "discourse-common/utils/dom-utils";
 import { INPUT_DELAY } from "discourse-common/config/environment";
 import { ajax } from "discourse/lib/ajax";
 import { headerOffset } from "discourse/lib/offset-calculator";
-import { helperContext } from "discourse-common/lib/helpers";
+import { capabilities } from "discourse/services/capabilities";
 
 let extraKeyboardShortcutsHelp = {};
 function addExtraKeyboardShortcutHelp(help) {
@@ -876,13 +876,13 @@ export default {
   },
 
   webviewKeyboardBack() {
-    if (helperContext().capabilities.isAppWebview) {
+    if (capabilities.isAppWebview) {
       window.history.back();
     }
   },
 
   webviewKeyboardForward() {
-    if (helperContext().capabilities.isAppWebview) {
+    if (capabilities.isAppWebview) {
       window.history.forward();
     }
   },
diff --git a/app/assets/javascripts/discourse/app/lib/utilities.js b/app/assets/javascripts/discourse/app/lib/utilities.js
index cd825625948..6fb79b524fc 100644
--- a/app/assets/javascripts/discourse/app/lib/utilities.js
+++ b/app/assets/javascripts/discourse/app/lib/utilities.js
@@ -2,10 +2,10 @@ import getURL from "discourse-common/lib/get-url";
 import Handlebars from "handlebars";
 import I18n from "I18n";
 import { escape } from "pretty-text/sanitizer";
-import { helperContext } from "discourse-common/lib/helpers";
 import toMarkdown from "discourse/lib/to-markdown";
 import deprecated from "discourse-common/lib/deprecated";
 import * as AvatarUtils from "discourse-common/lib/avatar-utils";
+import { capabilities } from "discourse/services/capabilities";
 
 let _defaultHomepage;
 
@@ -268,7 +268,7 @@ export function determinePostReplaceSelection({
 export function isAppleDevice() {
   // IE has no DOMNodeInserted so can not get this hack despite saying it is like iPhone
   // This will apply hack on all iDevices
-  let caps = helperContext().capabilities;
+  let caps = capabilities;
   return caps.isIOS && !window.navigator.userAgent.match(/Trident/g);
 }
 
@@ -451,7 +451,7 @@ export function modKeysPressed(event) {
 }
 
 export function translateModKey(string) {
-  const { isApple } = helperContext().capabilities;
+  const { isApple } = capabilities;
   // Apple device users are used to glyphs for shortcut keys
   if (isApple) {
     string = string
diff --git a/app/assets/javascripts/discourse/app/services/capabilities.js b/app/assets/javascripts/discourse/app/services/capabilities.js
index aca1f7c1cd7..41dac2d3607 100644
--- a/app/assets/javascripts/discourse/app/services/capabilities.js
+++ b/app/assets/javascripts/discourse/app/services/capabilities.js
@@ -1,47 +1,54 @@
-import Service from "@ember/service";
-
 const APPLE_NAVIGATOR_PLATFORMS = /iPhone|iPod|iPad|Macintosh|MacIntel/;
 const APPLE_USER_AGENT_DATA_PLATFORM = /macOS/;
 
-// Lets us know about browser's capabilities
-export default class Capabilities extends Service {
-  constructor() {
-    super(...arguments);
+function calculateCapabilities() {
+  const capabilities = {};
 
-    const ua = navigator.userAgent;
+  const ua = navigator.userAgent;
 
-    this.touch = navigator.maxTouchPoints > 1 || "ontouchstart" in window;
+  capabilities.touch = navigator.maxTouchPoints > 1 || "ontouchstart" in window;
 
-    this.isAndroid = ua.includes("Android");
-    this.isWinphone = ua.includes("Windows Phone");
-    this.isIpadOS =
-      ua.includes("Mac OS") && !/iPhone|iPod/.test(ua) && this.touch;
-    this.isIOS =
-      (/iPhone|iPod/.test(navigator.userAgent) || this.isIpadOS) &&
-      !window.MSStream;
-    this.isApple =
-      APPLE_NAVIGATOR_PLATFORMS.test(navigator.platform) ||
-      (navigator.userAgentData &&
-        APPLE_USER_AGENT_DATA_PLATFORM.test(navigator.userAgentData.platform));
+  capabilities.isAndroid = ua.includes("Android");
+  capabilities.isWinphone = ua.includes("Windows Phone");
+  capabilities.isIpadOS =
+    ua.includes("Mac OS") && !/iPhone|iPod/.test(ua) && capabilities.touch;
+  capabilities.isIOS =
+    (/iPhone|iPod/.test(navigator.userAgent) || capabilities.isIpadOS) &&
+    !window.MSStream;
+  capabilities.isApple =
+    APPLE_NAVIGATOR_PLATFORMS.test(navigator.platform) ||
+    (navigator.userAgentData &&
+      APPLE_USER_AGENT_DATA_PLATFORM.test(navigator.userAgentData.platform));
 
-    this.isOpera = !!window.opera || ua.includes(" OPR/");
-    this.isFirefox = ua.includes("Firefox");
-    this.isChrome = !!window.chrome && !this.isOpera;
-    this.isSafari =
-      /Constructor/.test(window.HTMLElement) ||
-      window.safari?.pushNotification?.toString() ===
-        "[object SafariRemoteNotification]";
+  capabilities.isOpera = !!window.opera || ua.includes(" OPR/");
+  capabilities.isFirefox = ua.includes("Firefox");
+  capabilities.isChrome = !!window.chrome && !capabilities.isOpera;
+  capabilities.isSafari =
+    /Constructor/.test(window.HTMLElement) ||
+    window.safari?.pushNotification?.toString() ===
+      "[object SafariRemoteNotification]";
 
-    this.hasContactPicker =
-      "contacts" in navigator && "ContactsManager" in window;
-    this.canVibrate = "vibrate" in navigator;
-    this.isPwa =
-      window.matchMedia("(display-mode: standalone)").matches ||
-      window.navigator.standalone ||
-      document.referrer.includes("android-app://");
-    this.isiOSPWA = this.isPwa && this.isIOS;
-    this.wasLaunchedFromDiscourseHub =
-      window.location.search.includes("discourse_app=1");
-    this.isAppWebview = window.ReactNativeWebView !== undefined;
+  capabilities.hasContactPicker =
+    "contacts" in navigator && "ContactsManager" in window;
+  capabilities.canVibrate = "vibrate" in navigator;
+  capabilities.isPwa =
+    window.matchMedia("(display-mode: standalone)").matches ||
+    window.navigator.standalone ||
+    document.referrer.includes("android-app://");
+  capabilities.isiOSPWA = capabilities.isPwa && capabilities.isIOS;
+  capabilities.wasLaunchedFromDiscourseHub =
+    window.location.search.includes("discourse_app=1");
+  capabilities.isAppWebview = window.ReactNativeWebView !== undefined;
+
+  return capabilities;
+}
+
+export const capabilities = calculateCapabilities();
+
+export default class CapabilitiesService {
+  static isServiceFactory = true;
+
+  static create() {
+    return capabilities;
   }
 }
diff --git a/app/assets/javascripts/discourse/app/services/composer.js b/app/assets/javascripts/discourse/app/services/composer.js
index 06049924d30..7a95da9a5fb 100644
--- a/app/assets/javascripts/discourse/app/services/composer.js
+++ b/app/assets/javascripts/discourse/app/services/composer.js
@@ -100,6 +100,7 @@ export default class ComposerController extends Controller {
   @service site;
   @service store;
   @service appEvents;
+  @service capabilities;
 
   checkedMessages = false;
   messageCount = null;
@@ -128,10 +129,6 @@ export default class ComposerController extends Controller {
     return getOwner(this).lookup("controller:topic");
   }
 
-  get capabilities() {
-    return getOwner(this).lookup("capabilities:main");
-  }
-
   @on("init")
   _setupPreview() {
     const val = this.site.mobileView
diff --git a/app/assets/javascripts/discourse/tests/acceptance/sidebar-user-test.js b/app/assets/javascripts/discourse/tests/acceptance/sidebar-user-test.js
index b92fb0e1c3e..2bb6c7858ff 100644
--- a/app/assets/javascripts/discourse/tests/acceptance/sidebar-user-test.js
+++ b/app/assets/javascripts/discourse/tests/acceptance/sidebar-user-test.js
@@ -7,6 +7,7 @@ import {
   query,
   updateCurrentUser,
 } from "discourse/tests/helpers/qunit-helpers";
+import Sinon from "sinon";
 
 acceptance(
   "Sidebar - Logged on user - Legacy navigation menu enabled",
@@ -162,7 +163,7 @@ acceptance(
 
     test("button to toggle between mobile and desktop view on touch devices ", async function (assert) {
       const capabilities = this.container.lookup("service:capabilities");
-      capabilities.touch = true;
+      Sinon.stub(capabilities, "touch").value(true);
 
       await visit("/");
 
diff --git a/plugins/chat/assets/javascripts/discourse/lib/chat-message-interactor.js b/plugins/chat/assets/javascripts/discourse/lib/chat-message-interactor.js
index bc5da78b96a..d83077b93a2 100644
--- a/plugins/chat/assets/javascripts/discourse/lib/chat-message-interactor.js
+++ b/plugins/chat/assets/javascripts/discourse/lib/chat-message-interactor.js
@@ -12,7 +12,7 @@ import { clipboardCopy } from "discourse/lib/utilities";
 import ChatMessageReaction, {
   REACTIONS,
 } from "discourse/plugins/chat/discourse/models/chat-message-reaction";
-import { getOwner, setOwner } from "@ember/application";
+import { setOwner } from "@ember/application";
 import { tracked } from "@glimmer/tracking";
 import ChatMessage from "discourse/plugins/chat/discourse/models/chat-message";
 import { MESSAGE_CONTEXT_THREAD } from "discourse/plugins/chat/discourse/components/chat-message";
@@ -42,6 +42,7 @@ export default class ChatMessageInteractor {
   @service currentUser;
   @service site;
   @service router;
+  @service capabilities;
 
   @tracked message = null;
   @tracked context = null;
@@ -56,10 +57,6 @@ export default class ChatMessageInteractor {
     this.cachedFavoritesReactions = this.chatEmojiReactionStore.favorites;
   }
 
-  get capabilities() {
-    return getOwner(this).lookup("capabilities:main");
-  }
-
   get pane() {
     return this.context === MESSAGE_CONTEXT_THREAD
       ? this.chatThreadPane