# Google Lighthouse

> Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.

Canonical page: [https://chrome-stats.com/d/google-lighthouse](https://chrome-stats.com/d/google-lighthouse)

## Overview

- **ID:** `google-lighthouse`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Google Lighthouse
- **Category:** web-development
- **Daily users:** 14,749
- **Weekly downloads:** 198
- **Rating:** 3.59 / 5 (49 ratings)
- **Version:** 100.0.0.3
- **Last updated:** 2023-08-17
- **First published:** 2020-02-14
- **Size:** 27 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/google-lighthouse/)

## Description

Google Lighthouse is a powerful, open-source Chrome extension designed to help developers and webmasters improve the performance, quality, and correctness of their web applications. By leveraging the PageSpeed Insights API and running headless Chrome from Google's service, it generates detailed Lighthouse reports that highlight areas for optimization. This tool audits public URLs and provides actionable insights to enhance user experience, accessibility, SEO, and overall web standards compliance, making it an essential tool for modern web development and optimization.

## Rankings

- #610 — Overall
- #48 — Web Development
- #7 — house
- #11 — delight
- #13 — google keep
- #14 — google

## Permissions and access

### Permissions

- `activeTab`
- `storage`

## Safety

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

### Analysis details

- This extension has medium 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).

## Review summary

Pros: easy to use, quick Lighthouse analysis in Firefox desktop, and time-saving reporting features. Cons: lacks localhost testing, frequent test failures/load errors, and reliance on an external Lighthouse viewer (internet needed) which hampers local testing. Android support is limited and Chrome tends to perform better for Lighthouse. Overall, convenient for quick checks but unreliable for local development or offline testing.

### Pros

- Easy to use and simple experience
- Provides Lighthouse analysis in Firefox desktop, saving time
- Quick saving and printing of Lighthouse reports
- Helps analyze the site and reduces dependence on PageSpeed Insights

### Cons

- No localhost/local development testing; can't scan local sites
- Frequent test failures and page load/document errors
- Relies on redirect to external Lighthouse viewer / requires internet; not suitable for local testing

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