: Includes cutting-edge tools like Valence , which lets you debug other browsers (like Safari on iOS) directly from Firefox.

: Optimized for long coding sessions with a sleek dark interface that reduces eye strain. How to Install on Different Platforms

To , visit the official Mozilla Developer Edition download page. This specialized browser is designed specifically for web developers, offering early access to experimental features and a suite of advanced tools that are typically available 12 weeks before they reach the standard Firefox release. Key Features of Firefox Developer Edition

: Features a unique toolset built specifically for designing and visualizing CSS Grids, allowing you to see area names and preview transformations.