<commit_before>---
layout: page
title:  "Build Your Own WebExtension Add-on for Firefox"
permalink: /webextensions/
lang: pt
ref: webextensions
parent: activities
---

* TOC
{:toc}

{: .label .timebox}
<span class="glyphicon glyphicon-time" aria-hidden="true"></span> 1-3 hours

{: .clear}
_

{: .alert .alert-info .impactbox}
<span class="glyphicon glyphicon-ok-circle" aria-hidden="true"></span>
Add-ons provide a safe, simple, and powerful way to personalize your browsing experience. With WebExtensions APIs, it’s easier than ever to create extensions that can be easily ported to Firefox, Chrome, Edge, and Opera. Through this activity you’ll help connect new developers with an opportunity to create add-ons to solve real problems and make their lives and the web better.

Firefox is an open-source web browser that cares about user control and privacy, and add-ons provide a safe, simple, and powerful way to personalize your browsing experience. From blocking ads to organizing tabs, add-ons help make Firefox your own.

It’s very easy to create add-ons for Firefox with [WebExtensions](https://developer.mozilla.org/en-US/Add-ons/WebExtensions). This Web-based technology framework offers a powerful way to create browser extensions that can be easily ported to Chrome, Opera, and Edge, and you only need to know HTML, JavaScript and CSS to build them.
<commit_msg>Fixed permalink to /pt/webextensions<commit_after>---
layout: page
title:  "Build Your Own WebExtension Add-on for Firefox"
permalink: /pt/webextensions/
lang: pt
ref: webextensions
parent: activities
---

* TOC
{:toc}

{: .label .timebox}
<span class="glyphicon glyphicon-time" aria-hidden="true"></span> 1-3 hours

{: .clear}
_

{: .alert .alert-info .impactbox}
<span class="glyphicon glyphicon-ok-circle" aria-hidden="true"></span>
Add-ons provide a safe, simple, and powerful way to personalize your browsing experience. With WebExtensions APIs, it’s easier than ever to create extensions that can be easily ported to Firefox, Chrome, Edge, and Opera. Through this activity you’ll help connect new developers with an opportunity to create add-ons to solve real problems and make their lives and the web better.

Firefox is an open-source web browser that cares about user control and privacy, and add-ons provide a safe, simple, and powerful way to personalize your browsing experience. From blocking ads to organizing tabs, add-ons help make Firefox your own.

It’s very easy to create add-ons for Firefox with [WebExtensions](https://developer.mozilla.org/en-US/Add-ons/WebExtensions). This Web-based technology framework offers a powerful way to create browser extensions that can be easily ported to Chrome, Opera, and Edge, and you only need to know HTML, JavaScript and CSS to build them.

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