Mjetet e Zhvilluesve Firefox

Creating

Authoring tools for websites and web apps.

Scratchpad

A text editor built into Firefox that lets you write and execute JavaScript.

Style Editor

View and edit CSS styles for the current page.

Shader Editor

View and edit the vertex and fragment shaders used by WebGL.

Web Audio Editor

Examine the graph of audio nodes in an audio context, and modify their parameters.

Exploring and debugging

Examine, explore, and debug websites and web apps.

Web Console

See messages logged a web page, and interact with the page using JavaScript.

Page Inspector

View and modify the page HTML and CSS.

JavaScript Debugger

Stop, step through, examine and modify the JavaScript running in a page.

Network Monitor

See the network requests made when a page is loaded.

Storage Inspector

Inspect cookies, local storage, indexedDB and session storage present in a page.

Developer Toolbar

A command-line interface for the developer tools.

3D View

3D visualization of the page.

Eyedropper

Select a color from the page.

Working with iframes

How to target a particular iframe.

Mobile

Tools for mobile development.

App Manager

Design and develop apps for Firefox OS.

WebIDE

The replacement for the App Manager, available from Firefox 33 onwards.

Firefox OS Simulator

Run and debug your Firefox OS app on the desktop, without needing a real Firefox OS device.

Responsive Design View

See how your website or app will look on different screen sizes without changing the size of your browser window.

Debugging on Firefox for Android

Connect the developer tools to Firefox for Android.

Performance

Diagnose and fix performance problems.

Performance tool

Revamped JS profiler and frame rate timeline.

JavaScript Profiler

Figure out where your JavaScript code is spending its time.

Paint Flashing Tool

Highlights the parts of the page that are repainted in response to events.

Reflow Event Logging

See reflow events in the web console.

Network Performance

See how long the parts of your site take to load.

Debugging the browser

By default, the developer tools are attached to a web page or web app. But you can also connect them to the browser as a whole. This is useful for browser and add-on development.

Browser Console

See messages logged by the browser itself and add-ons, and run JavaScript code in the browser's scope.

Browser Toolbox

Attach the Developer Tools to the browser itself.

Extending the devtools

The developer tools are designed to be extensible. Firefox add-ons can access the developer tools and the components they use to extend existing tools and add new tools. With the remote debugging protocol you can implement your own debugging clients and servers, enabling you to debug websites using your own tools or to debug different targets using the Firefox tools.

Remote Debugging Protocol

The protocol used to connect the Firefox Developer Tools to a debugging target like an instance of Firefox or a Firefox OS device.

Source Editor

A code editor built into Firefox that can be embedded in your add-on.

The Debugger Interface

An API that lets JavaScript code observe the execution of other JavaScript code. The Firefox Developer Tools use this API to implement the JavaScript debugger.

Web Console custom output

How to extend and customize the output of the Web Console and the Browser Console.

Firebug

A very popular and powerful web development tool, including a JavaScript debugger, HTML and CSS viewer and editor, and network monitor.

DOM Inspector

Inspect, browse, and edit the DOM of web pages or XUL windows.

Web Developer

Adds a menu and a toolbar to the browser with various web developer tools.

Webmaker Tools

A set of tools developed by Mozilla, aimed at people getting started with Web development.

W3C Validators

The W3C website hosts a number of tools to check the validity of your website, including its HTML and CSS.

JSHint

JavaScript code analysis tool.