# Tab Memory Manager

> See how much RAM each tab uses, then hibernate, close, or group idle tabs in one click. 100% private — nothing leaves your device.

Canonical page: [https://chrome-stats.com/d/tab-memory-manager](https://chrome-stats.com/d/tab-memory-manager)

## Overview

- **ID:** `tab-memory-manager`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Tab Manager
- **Category:** privacy-security,tabs
- **Daily users:** 48
- **Weekly downloads:** 21
- **Version:** 1.0.2
- **Last updated:** 2026-06-23
- **First published:** 2026-06-18
- **Size:** 52 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/tab-memory-manager/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/tab-memory-manager/privacy/](https://addons.mozilla.org/firefox/addon/tab-memory-manager/privacy/)

## Description

Tab Memory Manager shows you exactly which tabs are the
culprits — then frees the memory in one click. No accounts, no servers, no tracking.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
WHAT IT DOES
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

📊  See memory per tab
A clear estimate of how much memory every open tab is using, with a live total
right on the toolbar icon. Sort by memory, idle time, domain, or "most suggested."

💤  Hibernate or close idle tabs
Free up RAM without losing your place. Hibernating keeps the tab in your strip and
reloads it when you click — far safer than closing. See exactly how much you'll save
before you act.

✨  Smart cleanup suggestions
The extension surfaces your biggest, stalest tabs — the ones safe to clear — and
frees them in one tap. It never touches the tab you're using, pinned tabs, tabs
playing audio, or domains you've whitelisted.

🗂️  Group tabs by domain
Turn a chaotic window into tidy, color-coded groups by website, instantly. One click
to group, one to undo.

↩️  Undo safety net
Closed something by mistake? Every cleanup is saved to a "Recently cleaned" list so
you can restore tabs with one click.

🌙  Built for everyone
Fast, lightweight, no frameworks. Automatic dark mode. A clean, minimal interface
that opens in under 100 ms.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
PRIVATE BY DESIGN
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Your tabs are your business. Tab Memory Manager runs entirely on your device:
• No account or sign-in
• No servers, no analytics, no tracking
• Your tab data and stats never leave your browser

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
HOW THE MEMORY NUMBERS WORK
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Firefox doesn't expose exact per-tab memory to extensions, so Tab Memory
Manager shows calibrated estimates (clearly labeled "est.").

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
PERFECT IF YOU
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

• Keep dozens (or hundreds) of tabs open
• Notice Firefox slowing down or your fan spinning up
• Work on a laptop with limited RAM
• Want a tab suspender that's honest, private, and simple

Install it free, pin it to your toolbar, and reclaim your memory.

## Rankings

- #16,412 — Overall
- #2 — ai memory
- #7 — memory
- #134 — laptop
- #152 — manager
- #160 — manage

## Permissions and access

### Permissions

- `tabs`
- `tabGroups`
- `storage`
- `alarms`
- `scripting`

## Safety

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

## Similar extensions and apps

- [TabClub Memory Manager](https://chrome-stats.com/d/tabclub-memory-manager) — 1 users
- [Tab Memory Saver](https://chrome-stats.com/d/tabmemorysaver) — 279 users, 5.00 / 5
- [Tab Manager](https://chrome-stats.com/d/tab-manager01) — 4 users
- [Tab Memory Saver](https://chrome-stats.com/d/e4ca70c2bd8d4e2a8344) — 8 users
- [TabKeep - Tab & Session Manager](https://chrome-stats.com/d/tabkeep-tab-session-manager)
- [TabGenius - Smart Tab Manager](https://chrome-stats.com/d/tabgenius-smart-tab-manager)
- [Tab Memory Saver](https://chrome-stats.com/d/tab-memory-saver) — 137 users
- [Smart Tab Hibernator](https://chrome-stats.com/d/smart-tab-hibernator-pro) — 3 users
- [Hibernating Tabs](https://chrome-stats.com/d/hibernating-tabs) — 62 users
- [Tab Memory Saver itst](https://chrome-stats.com/d/tab-memory-saver-itst) — 43 users
- [Smart Tab Suspender](https://chrome-stats.com/d/smart-tabsuspender) — 40 users, 4.40 / 5
- [OneTab](https://chrome-stats.com/d/onetab) — 156,186 users, 4.13 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/tab-memory-manager)