Page Unresponsive Browser Origin: On your device Last updated 15 Oct 2026

Chrome: Page Unresponsive — The following page(s) have become unresponsive. You can wait for them to become responsive or exit the page(s)

A tab is stuck in a busy loop or waiting on something heavy, so Chrome offers to wait or kill it.

Exact message you may see Page UnresponsiveThe following page(s) have become unresponsiveWait or Exit pages
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Seen on: Chrome Edge JavaScript

Meaning

The tab's JavaScript is blocking the main thread — an infinite loop, a huge synchronous task, a runaway extension, or a page loading enormous data. If you are the developer, record a Performance profile and break long tasks into chunks (requestIdleCallback, Web Workers).

Common causes

  • Infinite or very long synchronous JavaScript loop
  • Huge DOM/table rendering or layout thrashing
  • Memory pressure or too many tabs
  • Faulty extension or content script
  • Heavy page on an old device

⚡ Quick fix

  1. Click "Exit pages" or wait a few seconds
  2. Reload with extensions disabled
  3. Developers: profile in DevTools → Performance and split long tasks

Detailed fix by platform

JavaScript

  1. Break long loops: process 1,000 items per tick using setTimeout/requestIdleCallback, or move work to a Web Worker

Chrome

  1. Press Shift+Esc to open Chrome's Task Manager and end the heavy tab/extension

How to diagnose

  1. Which — Which tab/extension uses most CPU (Shift+Esc)?
  2. Reproduce — Only on one page?
  3. Profile — Long task in DevTools?

🔧 Still not fixed?

Many errors look alike. If the steps above didn’t solve it, one of these is probably what you’re facing:

Where this error sits

Origin: On your device. Errors that are often confused with or caused by this one (click to open):

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