# Site Killer

> Automatically kill (close) the site. Can be used to kill unwanted popup.

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

## Overview

- **ID:** `site-killer`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** chimin
- **Category:** privacy-security
- **Version:** 2.1.1
- **Last updated:** 2022-12-03
- **First published:** 2019-07-30
- **Size:** 23 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/site-killer/)

## Description

Site Killer is a Firefox add-on that allows you to automatically close any website on your saved list. It also provides a list of recently visited websites for easy addition to the kill list. With Site Killer's configurable options, you can easily manage and control which sites to close.

## Rankings

- #140,960 — Overall

## Permissions and access

### Permissions

- `notifications`
- `tabs`

## Safety

- **Risk impact:** Moderate 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 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

- [PopupKiller](https://chrome-stats.com/d/popupkiller) — 23 users, 3.00 / 5
- [AdTab Killer — auto close unwanted new tabs](https://chrome-stats.com/d/adtab-killer-auto-close-tabs) — 34 users, 5.00 / 5
- [Auto Closer](https://chrome-stats.com/d/auto-closer) — 15 users, 3.00 / 5
- [Kill It](https://chrome-stats.com/d/kill-it) — 154 users, 5.00 / 5
- [TargetKiller](https://chrome-stats.com/d/target-killer) — 63 users, 3.25 / 5
- [Blacklist AutoClose](https://chrome-stats.com/d/blacklist-autoclose) — 870 users, 4.31 / 5
- [Site Blocker Extension](https://chrome-stats.com/d/site-blocker-extension) — 6 users
- [AutoClose Blacklisted](https://chrome-stats.com/d/autoclose-blacklisted) — 35 users, 3.67 / 5
- [DomainKiller](https://chrome-stats.com/d/domainkiller)
- [AdsKiller](https://chrome-stats.com/d/adskiller) — 8,374 users, 3.67 / 5
- [Tab Limiter](https://chrome-stats.com/d/tab-limiter1) — 8 users, 5.00 / 5
- [Tab Close Gold](https://chrome-stats.com/d/tab-close-gold) — 306 users, 5.00 / 5

---

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