unknown

A developer announces a new Firefox extension called JavaScript Playground — a cyber-themed, in-browser coding sandbox for quickly testing JavaScript snippets. Key features include real-time code evaluation, side-by-side editor and output panel, CodeMirror syntax highlighting with Darcula theme, console.log capture, error display, and persistent code storage. It supports ES6+, HTML/CSS editing, works on both Firefox desktop and Android, is free, open-source (MIT), and under 100KB.

🚀 I Built a Cyber-Themed JavaScript Playground for Firefox Addon!

onyx

**Write and run JavaScript code instantly — right from your Firefox toolbar.**
A sleek, JavaScript playground with live evaluation, persistent storage, and full console capture. Click the icon, write code, and see results in real time.

<p>**Write and run JavaScript code instantly — right from your Firefox toolbar.**
A sleek, JavaScript playground with live evaluation, persistent storage, and full console capture. Click the icon, write code, and see results in real time.</p>