Google’s Lighthouse is an open-source, automation tool that helps developers to measure a website or web application load time, performance, accessibility, user experience, and other issues. You can find and run Lighthouse in Chrome from the Audits tab in Developer Tools, Chrome extension is also available. Google recently released Lighthouse extension for Firefox to the Mozilla add–ons store (AMO). The extension uses PageSpeeed Insights API and it cannot audit the localhost and private sites.
Since Lighthouse Chrome extension is available and Firefox supports Web Extensions API if you thought porting it to Firefox is easy that’s not the case. As Lighthouse uses Chrome devtools protocol, Google needs to convert all the calls into the Firefox devtools protocol. This has taken some time and now successful.
Google Lighthouse Firefox Extension
To get started, head to the extension page, download and install the add-on.
Visit any website, click on the Lighthouse icon on the toolbar and click “Generate report”.
The Lighthouse Report Viewer tool will audit the webpage and displays the detailed report on Performance, Accessibility, Best Practices, SEO and Progressive Web App. You can review respective areas to check for opportunities you have to improve the website.
The extension will be maintained by the Lighthouse team.
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