Firefox Developer Edition 126.0b1

Free Download Firefox Developer Edition standalone offline installer for Windows PC. With this, you can get the latest features, fast performance, and the development tools you need to build for the open web.

Overview of Firefox Developer Edition

Firefox Developer Edition has been rebuilt from the ground up to be faster and more powerful than ever. This includes a new CSS with state-of-the-art innovations and is blazingly fast.

In Firefox Developer E's edition, the new Firefox DevTools is powerful, flexible, and hackable. This includes a best-in-class JavaScript debugger, which can target multiple browsers and is built in React and Redux.

Firefox is the only browser with tools built specifically for building and designing with CSS Grid. These tools allow you to visualize the grid, display associated area names, preview transformations on the grid, and much more.

Firefox 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 fine-tune your adjustments quickly with a visual editor.

The new fonts panel in Firefox DevTools gives developers quick access to their information about the fonts being used in an element. It also includes valuable information such as the font source, weight, etc.

Firefox Developer Edition Features

• Inspect and refine code to build pixel-perfect layouts.
• Track CSS, JavaScript, security, and network issues.
• Powerful JavaScript debugger with support for your framework.
• Monitor network requests that can slow or block your site.
• Add, modify, and remove cache, cookies, databases, and session data.
• Test sites on emulated devices in your browser.
• Fine-tune animations, alignment, and padding.
• Unblock bottlenecks, streamline processes and optimize assets.
• Find memory leaks and make your application zippy.
• The only developer tool for inspecting the Web Audio API.
• Edit, write, run, and execute JavaScript in real-time.
• Edit and manage all your CSS stylesheets in your browser.

Technical Details and System Requirements

• Supported OS: Windows 11, Windows 10, Windows 8.1, Windows 7
• RAM (Memory): 2 GB RAM (4 GB recommended)
• Free Hard Disk Space: 200 MB or more