# Sleep Mode

> Sleep Mode will temporarily put all tabs to sleep mode for saving RAM memory, saving battery and make your computer/laptop faster.

Canonical page: [https://chrome-stats.com/d/sleep-mode](https://chrome-stats.com/d/sleep-mode)

## Overview

- **ID:** `sleep-mode`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** matico
- **Category:** social-communication,other,tabs
- **Daily users:** 727
- **Weekly downloads:** 16
- **Rating:** 3.45 / 5 (31 ratings)
- **Version:** 2.2.2
- **Last updated:** 2019-11-17
- **First published:** 2019-03-27
- **Size:** 1.74 MB
- **Data as of:** 2026-09-11
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/sleep-mode/)
- **Website:** [https://www.linkedin.com/in/mactiencong/](https://www.linkedin.com/in/mactiencong/)

## Description

Sleep Mode is a powerful Chrome extension designed to optimize your browsing experience by temporarily putting all inactive tabs into sleep mode. This saves valuable RAM memory and battery life, resulting in a faster and more efficient computer or laptop.

While keeping your current working tab active for uninterrupted productivity, Sleep Mode automatically wakes tabs as you switch to them, ensuring seamless workflow. It features customizable settings including options to ignore pinned tabs, tabs with audio playback, as well as Google Docs and Office Online tabs. You can also manage sleep behavior per tab via context menu options. With Sleep Mode, enjoy improved system performance and extended battery life without disrupting your work.

## Rankings

- #4,005 — Overall
- #9 — laptop
- #22 — model
- #67 — memory
- #78 — keep
- #90 — computer

## Permissions and access

### Permissions

- `tabs`
- `activeTab`
- `webNavigation`
- `storage`
- `<all_urls>`
- `contextMenus`

## Safety

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

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension website URL may be invalid

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

## Review summary

Sleep Mode is praised for real memory and CPU savings by sleeping inactive tabs, often dramatically cutting RAM use and improving battery life. However, the timer is frequently unreliable, enabling/disabling can reload tabs and disrupt sessions, and Linux users report crashes. It can also break tab-opening behaviors. Users want more granular controls (per-tab sleep/whitelisting) and easier timer updates. Overall, it’s effective when working but plagued by stability and usability issues that hinder everyday use.

### Pros

- Significant RAM savings by sleeping inactive tabs
- Lower CPU usage and longer battery life when tabs are slept
- Overall positive and effective when the feature works

### Cons

- Timer feature is unreliable or non-functional (doesn't reset or apply correctly)
- Enabling/disabling can reload all tabs or discard-loaded tabs, breaking the session
- Causes instability on Linux and Firefox crashes in some setups
- Disrupts normal tab opening (middle-click/ctrl-click) and URL handling
- Limited settings and lack of per-tab controls/whitelisting; timer updates require disabling and restarting

## Similar extensions and apps

- [Sleep Modeee](https://chrome-stats.com/d/sleep-modeee)
- [Sleep Modeawq](https://chrome-stats.com/d/sleep-modeawq)
- [Sleep Modae](https://chrome-stats.com/d/sleep-modae)
- [Slumber](https://chrome-stats.com/d/slumber-tabs) — 23 users, 5.00 / 5
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- [Smart Tab Suspender](https://chrome-stats.com/d/smart-tabsuspender) — 42 users, 4.40 / 5
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- [Hibernating Tabs](https://chrome-stats.com/d/hibernating-tabs) — 62 users
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Source: [Chrome-Stats](https://chrome-stats.com/d/sleep-mode)