# GrowthBook DevTools

> GrowthBook DevTools helps you debug feature flags and experiments and design A/B tests visually — all from your browser.

Canonical page: [https://chrome-stats.com/d/growthbook-devtools](https://chrome-stats.com/d/growthbook-devtools)

## Overview

- **ID:** `growthbook-devtools`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** GrowthBook
- **Category:** web-development
- **Daily users:** 185
- **Weekly downloads:** 3
- **Version:** 1.2.4
- **Last updated:** 2026-03-05
- **First published:** 2025-02-26
- **Size:** 929 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/growthbook-devtools/)
- **Website:** [https://www.growthbook.io/contact](https://www.growthbook.io/contact)

## Description

GrowthBook DevTools is a Chrome extension that lets product teams and developers debug feature flags and run experiments directly in the browser. Use the Visual Editor to create and edit experiments without touching code, instantly view active flags and experiments on any page, override flag values or experiment variations on the fly, and simulate different user attributes to preview experiences.

Key capabilities include detailed evaluation debug logs, on-the-fly variation testing, Archetypes for quick user profiles, and attribute overrides for realistic testing. Requires the GrowthBook SDK (JavaScript, React, or HTML script tag). Learn more in the docs: https://docs.growthbook.io/tools/chrome-extension. GrowthBook is an open-source A/B testing and feature flagging platform: https://www.growthbook.io

## Rankings

- #8,539 — Overall
- #20 — grow
- #33 — book
- #65 — variation
- #77 — override
- #107 — tools

## Permissions and access

### Permissions

- `storage`
- `clipboardWrite`

### Host permissions

- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High 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).

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