AdTab Killer — auto close unwanted new tabs

Name: AdTab Killer — auto close unwanted new tabs
Author: htmyname

By: htmyname Add-on

Close tabs, pop-ups, and windows generated by intrusive ads or malicious sites

Overview

Firefox Add-ons Store

Daily users

4 ▲ 2

Data as of 2026-07-27

Version:

1.8.4

Last updated: 2026-07-20

Features & Capabilities

🎯 Key Features:

🔒 Instantly closes unwanted new tabs and windows opened by ads or malicious scripts.

📊 Real-time counter of blocked tabs.

🛡 Protected Sites: stop a website from opening new tabs, windows, or pop-ups. The page still loads normally.

❌ Blocked Sites: websites that never open. They are closed the moment they try.

✅ Allowed Sites: websites that are always allowed to open.

🧹 Automatically close all tabs, all windows, or both, based on your settings.

🔄 Option to let a website open tabs to itself.

📈 Activity log of blocked tabs.

🛠 Tools page to manage everything in one place.

🌍 Available in 26 languages, with dark mode.

🚀 Coming Soon in the Premium Version:

♾ Unlimited Blocked, and Allowed sites.

⚙ Advanced blocking rules and preferences.

AdTab Killer is lightweight, efficient, and built to keep your browsing uninterrupted.

User Growth & Download Statistics

Add-on

By:

htmyname

Daily users:

4 2

Version:

1.8.4 Last updated: 2026-07-20

Version code:

6365602

Creation date:

2026-07-11

Risk:

Permissions:

Size:

290.75KB

Email:

su*****@htmyname.dev

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-27

Compare stats and ranking:

Ranking

# 48,594 ▲ 18,382

Other rankings

#190 in close keyword 21 ▲ 51

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:

htmyname

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/adtab-killer-auto-close-tabs/

Email:

su*****@htmyname.dev

Permission Change History

2026-07-21: Version 1.8.2 → 1.8.4

Add Permissions: declarativeNetRequest

Is AdTab Killer — auto close unwanted new tabs 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.

AdTab Killer — auto close unwanted new tabs 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.
High ****** ********* ** * ****** ******** ******** ********** * ******* ******* *****

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.

AdTab Killer — auto close unwanted new tabs 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 was recently updated in the past month. New updates may not be stable or safe.
High **** ********* *** ******** ****** *** ********** *** *** ** ****** ** *****
High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****