• { -brand-name-firefox-developer-edition }

    { -brand-name-firefox-developer-edition }

  • { -brand-name-firefox-developer-edition } is the blazing fast browser that offers cutting edge developer tools and latest features like CSS Grid support and framework debugging

  • { -brand-name-firefox-developer-edition }

  • Welcome to your new favorite browser. Get the latest features, fast performance, and the development tools you need to build for the open web.

  • Speak up

  • Feedback makes us better. Tell us how we can improve the browser and Developer tools.

  • Join the conversation

  • Get involved

  • Help build the last independent browser. Write code, fix bugs, make add-ons, and more.

  • Start now

  • Design. Code. Test. Refine.

  • Build and Perfect your sites<br> with { -brand-name-firefox-devtools }

  • Inspector

    Inspeutor

  • Inspect and refine code to build pixel-perfect layouts.

  • Learn more about Page Inspector

  • Console

    Consola

  • Track CSS, JavaScript, security and network issues.

  • Learn more about Web Console

  • Debugger

    Depurador

  • Powerful JavaScript debugger with support for your framework.

  • Learn more about JavaScript Debugger

  • Network

    Rede

  • Monitor network requests that can slow or block your site.

  • Learn more about Network Monitor

  • Storage panel

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

  • Learn more about Storage Panel

  • Responsive Design Mode

  • Test sites on emulated devices in your browser.

  • Learn more about Responsive Design View

  • Visual Editing

    Edición visual

  • Fine-tune animations, alignment and padding.

  • Learn more about Visual Editing

  • Performance

    Rindimientu

  • Unblock bottlenecks, streamline processes, optimize assets.

  • Learn more about Performance Tools

  • Memory

    Memoria

  • Find memory leaks and make your application zippy.

  • Learn more about Memory Tools

  • Style Editor

    Editor d'estilos

  • Edit and manage all your CSS stylesheets in your browser.

  • Learn more about Style Editor

  • New Tools

    Ferramientes nueves

  • Inactive CSS

  • { -brand-name-firefox-devtools } now grays out CSS declarations that dont have an effect on the page. When you hover over the info icon, youll see a useful message about why the CSS is not being applied, including a hint about how to fix the problem.

  • { -brand-name-firefox-devtools }

    { -brand-name-firefox-devtools }

  • The new { -brand-name-firefox-devtools } are powerful, flexible, and best of all, hackable. This includes a best-in-class JavaScript debugger, which can target multiple browsers and is built in React and Redux.

  • Master CSS Grid

  • Built for Developers

  • Innovative Features

    Carauterístiques innovadores

  • { -brand-name-facebook-container } for { -brand-name-firefox } | Prevent { -brand-name-facebook } from seeing what websites you visit.

    { -brand-name-facebook-container } pa { -brand-name-firefox } | Evita que { -brand-name-facebook } escluque los sitios que visites.

  • Millions of people around the world trust { -brand-name-firefox } Web browsers on { -brand-name-android }, { -brand-name-ios } and desktop computers. Fast. Private. Download now!

  • { -brand-name-facebook }. Well contained. Keep the rest of your life to yourself.

  • Get the { -brand-name-facebook-container } Extension

  • Download { -brand-name-firefox } and get the { -brand-name-facebook-container } Extension

  • The { -brand-name-facebook-container } Extension is currently only available for { -brand-name-firefox } for Desktop.

  • { -brand-name-firefox-browser }

  • Visit <a href="{ $url }">{ $link_copy }</a> to get { -brand-name-firefox } for Desktop.

  • Get { -brand-name-firefox } for { -brand-name-android } and { -brand-name-ios } now.

  • Opt out on your terms

  • { -brand-name-facebook } can track almost all your web activity and tie it to your { -brand-name-facebook } identity. If thats too much for you, the <a href="{ $fbcontainer }">{ -brand-name-facebook-container } extension</a> isolates your identity into a separate container tab, making it harder for { -brand-name-facebook } to track you on the web outside of { -brand-name-facebook }.

  • Install and contain

    Instala y aislla

  • Installing the <a href="{ $fbcontainer }">extension</a> is easy and, once activated, will open { -brand-name-facebook } in a blue tab each time you use it. Use and enjoy { -brand-name-facebook } normally. { -brand-name-facebook } will still be able to send you advertising and recommendations on their site, but it will be much harder for { -brand-name-facebook } to use your activity collected <strong>off { -brand-name-facebook }</strong> to send you ads and other targeted messages.

  • About { -brand-name-firefox } and { -brand-name-mozilla }

    Tocante a { -brand-name-firefox } y { -brand-name-mozilla }

  • Were backed by <a href="{ $mozilla }">{ -brand-name-mozilla }</a>, the not-for-profit organization that puts people over profit to give everyone more power online. We created this extension because we believe that you should have easy-to-use tools that help you manage your privacy and security.

  • Browse freely with { -brand-name-firefox } today.

{ -brand-name-firefox-developer-edition }

{ -brand-name-firefox-developer-edition }