# Env Border

> Add a colored border to your site's different environments

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

## Overview

- **ID:** `env-border`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** jmason87
- **Category:** web-development,appearance
- **Daily users:** 2
- **Version:** 1.0.0
- **Last updated:** 2025-11-13
- **First published:** 2025-11-10
- **Size:** 44 KB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/env-border/)

## Description

Env Border is a Chrome extension designed to enhance your web development workflow by visually distinguishing between different environments of your applications. By allowing you to input the domains for your local, QA, staging, and production environments, Env Border sets a colored border around the webpage window. This simple yet effective visual cue helps you quickly identify the environment you're currently viewing at a glance.

Features
Environment Recognition: Automatically recognizes the environment based on the domain
Subdomain Support: Matches subdomains automatically (e.g., <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/21613783a6972ea27049f4d1a9bc0e57428c372c11f8d4c001f4f7b1fab20fc1/http%3A//api.qa.example.com" rel="nofollow">api.qa.example.com</a> matches <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/17c2fb2f3dc6fd238b559fa497a6caff96607b0fd30356679ffee4835f3b067d/http%3A//qa.example.com" rel="nofollow">qa.example.com</a>)
Color-Coded Borders: Adds a distinct colored border to the window:
    - Green for Local
    - Yellow for QA
    - Orange for Staging
    - Red for Production
Custom Domain Input: Allows you to specify the domains for each environment
Toggle Control: Enable or disable the extension with a single click

github: <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/08eeb7541ab8816efef8e82095f32a96a1cb3a36df6cbe6e87e648678332052d/https%3A//github.com/jmason87/env-border" rel="nofollow">https://github.com/jmason87/env-border</a>

## Rankings

- #67,161 — Overall
- #129 — environment

## Permissions and access

### Permissions

- `activeTab`
- `storage`
- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

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

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- 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

- [URLColors](https://chrome-stats.com/d/url-colors) — 109 users, 4.00 / 5
- [TabColorizer](https://chrome-stats.com/d/tabcolorizer) — 10 users, 3.00 / 5
- [Environment Marker](https://chrome-stats.com/d/environment-marker-extension) — 267 users, 5.00 / 5
- [Website color coding](https://chrome-stats.com/d/website-color-coding)
- [Enviro-Shade](https://chrome-stats.com/d/enviro-shade) — 2 users, 5.00 / 5
- [Environment Highlighter](https://chrome-stats.com/d/environment-highlighter) — 2 users
- [Smart Environment Ribbon](https://chrome-stats.com/d/smart-environment-ribbon) — 1 users
- [Live Indicator](https://chrome-stats.com/d/live-indicator)
- [Environment Indicator](https://chrome-stats.com/d/indicateur-d-environnement) — 2 users
- [Environment Indicator](https://chrome-stats.com/d/environment-indicator) — 1 users
- [Env-based FF browser color](https://chrome-stats.com/d/env-based-ff-browser-color)
- [Dynamic Environment Detector](https://chrome-stats.com/d/dynamic-environment-detector)

---

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