# Development Icon Tab

> Displays an icon before the tab title when you are browsing through a 'test' domain defined as localhost, 127.0.0.1, .dev, .test etc

Canonical page: [https://chrome-stats.com/d/development-icon-tab](https://chrome-stats.com/d/development-icon-tab)

## Overview

- **ID:** `development-icon-tab`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** fegoa89
- **Category:** web-development,tabs
- **Version:** 1.0
- **Last updated:** 2021-02-01
- **First published:** 2021-01-31
- **Size:** 28 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/development-icon-tab/)
- **Website:** [https://github.com/fegoa89](https://github.com/fegoa89)

## Description

Development Icon Tab is a Firefox add-on that displays an icon on tab titles when you are browsing test domains such as localhost, 127.0.0.1, .dev, .test, etc. It provides a visual indicator to distinguish test domains from regular domains.

## Rankings

- #139,009 — Overall
- #59 — development

## Permissions and access

### Permissions

- `tabs`
- `activeTab`
- `storage`

### Content script matches

- `*`

## Safety

- **Risk impact:** High 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).

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Source: [Chrome-Stats](https://chrome-stats.com/d/development-icon-tab)