TabFreezer

Name: TabFreezer
Author: adam2am

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

Overview

Firefox Add-ons Store

Daily users

Data as of 2026-07-22

Version:

1.0.1

Last updated: 2026-05-09

Features & Capabilities

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

User Growth & Download Statistics

Add-on

By:

adam2am

Daily users:

Version:

1.0.1 Last updated: 2026-05-09

Version code:

6250540

Creation date:

2026-05-06

Risk:

Permissions:

Size:

28.99KB

Email:

ad*****@outlook.com

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-22

Compare stats and ranking:

Ranking

# 43,641 ▲

Other rankings

#234 in free vpn keyword 91 ▲

For Developers

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Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

adam2am

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/tabfreezer/

Email:

ad*****@outlook.com

Is TabFreezer Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

TabFreezer requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

TabFreezer is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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