Ferramentas de Desenvolvimento do Firefox

Examinar, editar, e depurar HTML, CSS, e JavaScript no pc e nos dispositivos móveis

Instalar Edição de Desenvolvoimento do FirefoxO que há de novo na Edição de Desenvolvimento do Firefox?

Edição de Desenvolvimento do Firefox é uma versão do Firefox adaptada para os programadores, apresentando as funcionalidades do Firefox mais recentes e ferramentas de desenvolvimento experimentais. Esta edição inclui essas atualizações para as ferramentas do programador:

Partilhar as suas ideias

Partilhar as suas ideias

Solicite novas funcionalidades nas ferramentas de programador ou vote nas ideias que os outros programadores solicitaram.


Authoring tools for websites and web apps.

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.

Exploração e depuração

Examine, explore, and debug websites and web apps.

Consola da Web
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.
Select a color from the page.
Working with iframes
How to target a particular iframe.


Ferramentas para o desenvolvimento móvel.

Gestor de Aplicação
App Manager has been replaced by WebIDE.
The replacement for the App Manager, available from Firefox 33 onwards.
Simulador do Firefox OS
Run and debug your Firefox OS app on the desktop, without needing a real Firefox OS device.
Visualização de Desenho Compreensiva
See how your website or app will look on different screen sizes without changing the size of your browser window.
Depuração no Firefox para Android
Connect the developer tools to Firefox for Android.
Depurar o Firefox para Android com WebIDE
For Desktop Firefox 36+ / Android Firefox 35+, there's a simpler process.
Connect the developer tools to Chrome on Android and Safari on iOS


Diagnose and fix performance problems.

Ferramenta de Desemepnho
Analyze your site's general responsiveness, JavaScript and layout performance.
Frame rate graph
See the frame rate for your site.
Figure out what the browser is doing as it runs your site.
Call Tree
Figure out where your JavaScript code is spending its time.
Flame Chart
See which functions are on the stack over the course of a performance profile.
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.



Depuração do navegador

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.

Consola do Navegador
See messages logged by the browser itself and add-ons, and run JavaScript code in the browser's scope.
Caixa de Ferramentas do Navegador
Attach the Developer Tools to the browser itself.

Aumento das ferramentas de desenvolvimento

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.

Add a new panel to the devtools
Write an add-on that adds a new panel to the Toolbox.
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.
Example devtools add-ons
Use these examples to understand how to implement a devtools add-on.

Mais recursos

This section lists resources which are not currently maintained by Mozilla's developer tools team, but which are widely used by web developers. We've included a few Firefox add-ons in this list, but for the complete list see the “Web Development” category on addons.mozilla.org.

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.
JavaScript code analysis tool.

Join the Developer tools community

Choose your preferred method for joining the discussion:

Etiquetas do documento e colaboradores

 Colaboradores para esta página: mansil, robert882, Leite, caobarbosa, Timmi
 Última atualização por: mansil,