# Localhost Detector

> Detects if you are accessing localhost or production and respectively shows prominent red banner only on localhost.

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

## Overview

- **ID:** `detect-localhost`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** ntp
- **Category:** web-development
- **Daily users:** 3
- **Version:** 0.4
- **Last updated:** 2021-05-11
- **First published:** 2021-03-23
- **Size:** 12 KB
- **Data as of:** 2026-09-11
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/detect-localhost/)
- **Website:** [https://github.com/entepe85/localhost-detector](https://github.com/entepe85/localhost-detector)

## Description

Localhost Detector is a Firefox add-on that detects if you are accessing localhost or production and shows a prominent red banner only on localhost. It helps you easily identify when you are working on a local development environment to avoid making unintended changes to your production environment.

## Rankings

- #56,913 — Overall
- #173 — detect

## Permissions and access

### Content script matches

- `localhost`
- `127.0.0.1`
- `*.local`

## Safety

- **Risk impact:** Low risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
- 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).

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