Firefox Devtools News Today

Web styling features of today and tomorrow, as seen at Google IO 2022, plus some extras.

CSS Stats CSS Stats runs a thorough audit of the CSS files requested on a page. Like many similar tools, it provides a dashboard-alike view of rules, selectors, declarations and properties, along with pseudo-classes and pseudo-elements. It also breaks down all styles into groups, from layout and structure to spacing, typography, font stacks and colors. Specificity scores, built with CSS Stats. Lower scores and flatter curves are better for maintainability. (Large preview) One of the useful fea...

DevTools is very advanced and helpful, but can also be very intimidating and overwhelming. Let’s fix that. In this article, Vitaly reviews useful features and shortcuts for debugging in Chrome, Firefox, Edge and Safari. Out of all the tools available at our fingertips these days, DevTools is probably one of the most advanced ones. Over the years, it has become a tool for debugging, profiling, auditing and even prototyping — all living within the same interface, and always just a keyboard sh...

Let’s make 2021… fast! An annual front-end performance checklist (available as PDF, Apple Pages, MS Word), with everything you need to know to create fast experiences on the web today, from metrics to tooling and front-end techniques. Updated since 2016. Ah, you can also get useful front-end tips in our email newsletter. This guide has been kindly supported by our friends at LogRocket, a service that combines frontend performance monitoring, session replay, and product analytics to help y...