# TabFreezer

> Freeze inactive tabs automatically and unload pinned tabs on startup to cut Firefox memory usage fast. Easily from Ngb ram -\> to just 1.

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

## Overview

- **ID:** `tabfreezer`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** adam2am
- **Category:** privacy-security,alerts-updates,tabs
- **Daily users:** 9
- **Version:** 1.0.1
- **Last updated:** 2026-05-09
- **First published:** 2026-05-06
- **Size:** 29 KB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/tabfreezer/)

## Description

TabFreezer is a lightweight Firefox tab suspender focused on real day to day memory savings

It is a fork of Tab Suspender with two key improvements:
- Freeze pinned tabs on startup so heavy pinned tabs do not immediately consume memory when Firefox opens.
- Discard all tabs now with a keyboard shortcut for instant cleanup without opening the popup.

This is especially useful if you keep many pinned tabs for work, research, chat, dashboards, or media sites. In real use, a large pinned-tab setup can consume huge amounts of RAM at startup. For example, a session that opens around 15 GB with tons of pinned tabs of memory usage can drop closer to 1 GB after startup when pinned tabs are unloaded until needed

Key features:
- Automatically freezes inactive tabs after a configurable delay
- Optional protection for audible tabs
- Optional protection for pinned tabs during normal browsing
- Unload pinned tabs on browser/window startup
- Discard all tabs now button and keyboard shortcut
- Per-tab “do not suspend” toggle
- URL host whitelist
- Simple local settings, no accounts, no telemetry, no cloud service

## Rankings

- #35,208 — Overall
- #210 — free vpn

## Permissions and access

### Permissions

- `tabs`
- `storage`
- `sessions`

## 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

- [TabFrost – Memory Saver](https://chrome-stats.com/d/tabfrost) — 4 users
- [Smart Tab Hibernator](https://chrome-stats.com/d/smart-tab-hibernator-pro) — 3 users
- [Tabinator](https://chrome-stats.com/d/sdtabinator) — 1 users
- [Tab Suspender – Save Memory](https://chrome-stats.com/d/tab-suspender-save-memory) — 17 users, 1.00 / 5
- [TabNap - Smart Tab Suspension](https://chrome-stats.com/d/tabnap) — 6 users, 5.00 / 5
- [Auto Tab Freezer](https://chrome-stats.com/d/auto-tab-freezer) — 4 users, 1.00 / 5
- [New Tab Suspender v2](https://chrome-stats.com/d/new-tab-suspender-v2) — 120 users, 2.75 / 5
- [Tab Memory Monitor](https://chrome-stats.com/d/tab-memory-monitor) — 1 users
- [Auto Tab Suspender](https://chrome-stats.com/d/auto-tab-suspender) — 8 users, 3.00 / 5
- [CleanTabs](https://chrome-stats.com/d/cleantabs) — 45 users, 5.00 / 5
- [Tab Hibernation Engine Standard](https://chrome-stats.com/d/tab-hibernation-engine) — 1 users
- [Tab Hibernation Engine Express](https://chrome-stats.com/d/engine-express) — 2 users

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