Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
Google Lighthouse - A Firefox Add-on for Web App Enhancement
Google Lighthouse is a powerful and open-source Firefox extension leveraging Google's PageSpeed Insights API. This tool provides automated assistance in improving your web apps. It generates a Lighthouse report using headless Chrome run by a Google service. Please note that it can only audit public URLs.
Add-on stats
Manifest V3
Rating: 3.63 
(48)
Weekly download count: 322
Firefox on Android: Yes
Permissions:
- activeTab
- storage
Size: 27.50K
Full description: See detailed description
Ranking
# 573 ▲ 1
Other platforms
Not available on Android
Not available on Edge
User reviews
These summaries are automatically generated weekly using AI based on recent user reviews.
Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate,
spammy, or outdated. Pros
- Simple and easy to use
- Time-saving add-on for performance analysis
- Allows saving and printing reports easily
Cons
- Does not support localhost testing
- Redirects to Google Chrome's Lighthouse site instead of working independently
- Often fails to load the requested page, resulting in errors
Most mentioned
- Inability to test localhost development
- Frequent errors when trying to analyze sites
- Works better under Google Chrome than Firefox
User reviews
by 退出党团队远离中共邪教, 2025-02-11
This is a simple time-saver addon that works exactly as intended and advertized on Firefox desktop (haven't used it on mobile). I love its simplicity—and the easy access menu for saving and printing reports.
Sadly, most of the 1-star reviews seem due to "lack of localhost support" from people that can't be bothered to read the addon description. It requires only a modicum of critical thinking skill to set up free dynamic DNS services for public "localhost" access, and even setting up free LetsEncrypt SSL certificates for secure https access to locally staged development sites is somewhat trivial.
Note to addon dev: perhaps add a bit more about this (localhost use requires x) to the product description, though skimmers are still gonna skim.
by DeCentN2Madness, 2024-12-11
Can't scan local websites
by Firefox user 17676156, 2024-11-13
Add-on safety
Risk impact
Google Lighthouse does not require any sensitive permissions.
Risk impact analysis details
- Low Request access to the following domains:
Risk likelihood
We don't have sufficient data to confidently determine the risk likelihood of Google Lighthouse. Use it at your own risk.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
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