diff --git a/packages/ember/README.md b/packages/ember/README.md
index e0c9694d7d49..f28d86f194a1 100644
--- a/packages/ember/README.md
+++ b/packages/ember/README.md
@@ -70,9 +70,6 @@ following Ember specific configuration:
 
 ```javascript
 ENV['@sentry/ember'] = {
-  // Will silence Ember.onError warning without the need of using Ember debugging tools.
-  ignoreEmberOnErrorWarning: false,
-
   // Will disable automatic instrumentation of performance.
   // Manual instrumentation will still be sent.
   disablePerformance: true,
diff --git a/packages/ember/addon/index.ts b/packages/ember/addon/index.ts
index 4a7a59566731..bebd89cb09c3 100644
--- a/packages/ember/addon/index.ts
+++ b/packages/ember/addon/index.ts
@@ -1,7 +1,6 @@
-import { assert, warn } from '@ember/debug';
+import { assert } from '@ember/debug';
 import type Route from '@ember/routing/route';
-import { next } from '@ember/runloop';
-import { getOwnConfig, isDevelopingApp, macroCondition } from '@embroider/macros';
+import { getOwnConfig } from '@embroider/macros';
 import type { BrowserOptions } from '@sentry/browser';
 import { startSpan } from '@sentry/browser';
 import * as Sentry from '@sentry/browser';
@@ -12,7 +11,6 @@ import {
   SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN,
   SEMANTIC_ATTRIBUTE_SENTRY_SOURCE,
 } from '@sentry/core';
-import Ember from 'ember';
 import type { EmberSentryConfig, GlobalConfig, OwnConfig } from './types';
 
 function _getSentryInitConfig(): EmberSentryConfig['sentry'] {
@@ -45,24 +43,7 @@ export function init(_runtimeConfig?: BrowserOptions): Client | undefined {
   const sentryInitConfig = _getSentryInitConfig();
   Object.assign(sentryInitConfig, initConfig);
 
-  const client = Sentry.init(initConfig);
-
-  if (macroCondition(isDevelopingApp())) {
-    if (environmentConfig.ignoreEmberOnErrorWarning) {
-      return client;
-    }
-    next(null, function () {
-      warn(
-        'Ember.onerror found. Using Ember.onerror can hide some errors (such as flushed runloop errors) from Sentry. Use Sentry.captureException to capture errors within Ember.onError or remove it to have errors caught by Sentry directly. This error can be silenced via addon configuration.',
-        !Ember.onerror,
-        {
-          id: '@sentry/ember.ember-onerror-detected',
-        },
-      );
-    });
-  }
-
-  return client;
+  return Sentry.init(initConfig);
 }
 
 type RouteConstructor = new (...args: ConstructorParameters<typeof Route>) => Route;
diff --git a/packages/ember/addon/types.ts b/packages/ember/addon/types.ts
index 468cde6c310f..a66a290004f0 100644
--- a/packages/ember/addon/types.ts
+++ b/packages/ember/addon/types.ts
@@ -5,6 +5,9 @@ type BrowserTracingOptions = Parameters<typeof browserTracingIntegration>[0];
 export type EmberSentryConfig = {
   sentry: BrowserOptions & { browserTracingOptions?: BrowserTracingOptions };
   transitionTimeout: number;
+  /**
+   * @deprecated This option is no longer used and will be removed in the next major version.
+   */
   ignoreEmberOnErrorWarning: boolean;
   disableInstrumentComponents: boolean;
   disablePerformance: boolean;
diff --git a/packages/ember/tests/dummy/config/environment.js b/packages/ember/tests/dummy/config/environment.js
index 144a6aebe1fa..96f525aaa568 100644
--- a/packages/ember/tests/dummy/config/environment.js
+++ b/packages/ember/tests/dummy/config/environment.js
@@ -32,7 +32,6 @@ module.exports = function (environment) {
         },
       },
     },
-    ignoreEmberOnErrorWarning: true,
     minimumRunloopQueueDuration: 0,
     minimumComponentRenderDuration: 0,
   };