Unblock bottlenecks, streamline processes, optimize assets.įind memory leaks and make your application zippy. Test sites on emulated devices in your browser.įine-tune animations, alignment and padding.

Monitor network requests that can slow or block your site.Īdd, modify and remove cache, cookies, databases and session data. Powerful JavaScript debugger with support for your framework. Track CSS, JavaScript, security and network issues. Inspect and refine code to build pixel-perfect layouts. It also includes valuable information such as the font source, weight, style and more. The new fonts panel in Firefox DevTools gives developers quick access to all of the information they need about the fonts being used in an element. These tools allow you to visualize the grid, display associated area names, preview transformations on the grid and much more.įirefox DevTools has a brand new shape path editor that takes the guesswork out of fine-tuning your shape-outside and clip-path shapes by allowing you to very easily fine-tune your adjustments with a visual editor. This includes a best-in-class JavaScript debugger, which can target multiple browsers and is built in React and Redux.įirefox is the only browser with tools built specifically for building and designing with CSS Grid. In Firefox Developer Edition the new Firefox DevTools are powerful, flexible, and best of all, hackable.

This includes a new CSS engine that has state-of-the-art innovations and is blazingly fast. Firefox Developer Edition Overviewįirefox Developer Edition has been rebuilt from the ground up to be faster and more powerful than ever. Initially, beta versions of the data are sent to Mozilla - and at other times to our partners - to help us deal with problems and try out solutions. Free download Firefox Developer Edition 67 full version standalone offline installer for Windows PC, Beta is an unstable testing and development platform.

Mozilla firefox developer version