# Flexbox Detector

> Detects whether a website is using Flexbox

Canonical page: [https://chrome-stats.com/d/flexbox-detector](https://chrome-stats.com/d/flexbox-detector)

## Overview

- **ID:** `flexbox-detector`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Firefox user 13008763
- **Category:** web-development,other
- **Daily users:** 4
- **Version:** 1.1.1resigned1
- **Last updated:** 2024-04-25
- **First published:** 2017-05-04
- **Size:** 451 KB
- **Data as of:** 2026-09-14
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/flexbox-detector/)

## Description

Flexbox Detector is a Firefox add-on that effectively identifies whether a website employs Flexbox for its layout. With this tool, you can quickly determine if a website you are visiting utilizes Flexbox, a powerful CSS layout module that provides flexible and responsive web design capabilities.

## Rankings

- #50,152 — Overall
- #118 — detect

## Permissions and access

### Permissions

- `activeTab`

## Safety

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

### Analysis details

- 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

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- [Website Technology Detector](https://chrome-stats.com/d/website-technology-detector) — 287 users, 5.00 / 5
- [Svelte Detector](https://chrome-stats.com/d/svelte-detector) — 9 users

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