◐ Shell
clean mode source ↗

Firefox Developer Tools

Features

  • Inspector

    Inspect and refine code to build pixel-perfect layouts.

  • Console

    Track CSS, JavaScript, security and network issues.

  • Debugger

    Powerful JavaScript debugger with support for your framework.

  • Network

    Monitor network requests that can slow or block your site.

  • Storage

    Add, modify and remove cache, cookies, databases and session data.

  • Responsive Design Mode

    Test sites on emulated devices in your browser.

  • Visual Editing

    Fine-tune animations, alignment and padding.

  • Performance

    Unblock bottlenecks, streamline processes, optimize assets.

  • Memory

    Find memory leaks and make your application zippy.

Helpers