# Auto Shutdown (WebExtension)

> Shutdown, hibernate, restart, suspend, or run a custom command when all downloads are finished

Canonical page: [https://chrome-stats.com/d/auto-shutdown-webextension](https://chrome-stats.com/d/auto-shutdown-webextension)

## Overview

- **ID:** `auto-shutdown-webextension`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Sarah Av.
- **Category:** download-management,privacy-security,photos-music-videos
- **Daily users:** 906
- **Weekly downloads:** 13
- **Rating:** 2.67 / 5 (18 ratings)
- **Version:** 0.2.1
- **Last updated:** 2025-01-13
- **First published:** 2017-03-09
- **Size:** 93 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/auto-shutdown-webextension/)
- **Website:** [https://add0n.com/auto-shutdown.html](https://add0n.com/auto-shutdown.html)

## Description

Auto Shutdown is a versatile Chrome extension designed to automate your computer's power actions once all downloads finish. Whether you want your PC to shutdown, hibernate, restart, suspend, or execute any custom OS-level command, this extension handles it seamlessly.

To enable these features, a native messaging application must be installed on your device. This powerful tool can also be used creatively, such as playing a music track via a desktop application once downloads complete. For installation instructions and further details, visit the official page linked below. Report bugs or contribute via the GitHub repository.

## Rankings

- #3,474 — Overall
- #311 — Download Management
- #39 — commands
- #47 — command
- #52 — auto
- #99 — extension guard

## Permissions and access

### Permissions

- `storage`
- `nativeMessaging`
- `downloads`
- `power`

## Safety

- **Risk impact:** Low risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Facilitates communication between extensions and native applications, usually low risk if managed correctly.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Review summary

Reviews are mixed: some users report it works on Windows 10 and provides a useful timer-based shutdown; others struggle with setup, reliability, and unclear configuration. The main positives are Windows 10 compatibility and the core countdown/shutdown function; the main drawbacks are the native client installation burden, occasional non-functionality, unclear commands, path/config errors, and limited event customization. Overall, it can be effective with careful setup but has notable reliability and usability hurdles.

### Pros

- Works on Windows 10 (positive experiences reported).
- Provides a countdown/timer to trigger shutdown/restart actions.
- Useful addon for automated shutdown tasks.
- Updated to a WebExtension to support newer Firefox versions (FF57+).

### Cons

- Requires native client and a non-trivial installation process.
- Reliability issues; some users report it doesn't work on their system (e.g., Windows 10 Home).
- Commands and setup instructions are unclear or confusing (e.g., 'CALL:PowrProf.dll SetSuspendState 0 1 0').
- Path/config issues in the options page and misleading 'Check connection' page; debugging is hard.
- Limited customization of restart events; only certain events trigger actions, with no option to customize.

## Similar extensions and apps

- [Youtube Auto Shutdown](https://chrome-stats.com/d/youtube-auto-shutdown) — 5 users
- [Restart Web Browser / Shutdown OS After Download](https://chrome-stats.com/d/restart-web-browser) — 3 users, 2.50 / 5
- [Automa](https://chrome-stats.com/d/automa) — 4,538 users, 4.62 / 5
- [auto resume downloads](https://chrome-stats.com/d/auto-resume-downloads) — 1,859 users, 2.03 / 5
- [Popup Download Manager](https://chrome-stats.com/d/popup-download-manager) — 14 users, 3.11 / 5
- [Video Auto Pause](https://chrome-stats.com/d/video-auto-pause) — 45 users, 4.00 / 5
- [Auto Save HTML](https://chrome-stats.com/d/auto-save-html) — 249 users, 4.11 / 5
- [automaticDark - Time-Based Theme Changer](https://chrome-stats.com/d/automatic-dark) — 24,586 users, 4.35 / 5
- [Youtube Autoclose Ads](https://chrome-stats.com/d/youtube-autoclose-ads) — 5 users, 3.00 / 5
- [Download Links](https://chrome-stats.com/d/download-links) — 1,732 users, 3.86 / 5
- [Window Autosaver](https://chrome-stats.com/d/window-autosaver) — 1 users
- [Auto Close Tab Extension](https://chrome-stats.com/d/auto-close-tab-extension-nete) — 1 users

---

Source: [Chrome-Stats](https://chrome-stats.com/d/auto-shutdown-webextension)