Geral

by João Paulo Noronha

41 Add-ons in this Collection

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 4 out of 5 stars 1,843 reviews

962,944 users

The first and only download manager/accelerator built inside Firefox!

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,124 reviews

1,402,834 users

Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page...

HTTPS Everywhere by EFF Technologists

Rated 4 out of 5 stars 248 reviews

377,368 users

Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.

Awesome Screenshot Plus - Capture, Annotate & More by Diigo Inc.

Rated 4 out of 5 stars 1,623 reviews

443,297 users

Capture the whole page or any portion, annotate it with rectangles, circles, arrows, lines and text, blur sensitive info, one-click upload to share. And more!

FoxyProxy Standard by Eric H. Jung, groeg, others

Rated 4 out of 5 stars 459 reviews

187,589 users

FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 950 reviews

329,962 users

FireFTP is a free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers.

Check out my new project, FireSSH!

Flagfox by Dave G

Rated 5 out of 5 stars 688 reviews

343,935 users

Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...

Web Developer by chrispederick

Rated 5 out of 5 stars 279 reviews

314,824 users

The Web Developer extension adds various web developer tools to the browser.

Tamper Data by Adam Judson

Rated 4 out of 5 stars 175 reviews

65,226 users

Use tamperdata to view and modify HTTP/HTTPS headers and post parameters...

Personas Plus by Mozilla

Rated 3 out of 5 stars 858 reviews

171,464 users

Personas (now known as lightweight themes) are free, easy-to-install "skins" for Firefox. Personas Plus extends that built-in functionality to give you even more control and easier access to new, popular, and your own favorite themes.

CodeBurner for Firebug by SitePoint

Rated 3 out of 5 stars 35 reviews

17,581 users

CodeBurner is a Firefox add-on that integrates with Firebug, to extend it with reference material for HTML and CSS.

JSONView by Ben Hollis

Rated 5 out of 5 stars 177 reviews

90,080 users

View JSON documents in the browser.

TinEye Reverse Image Search by TinEye

TinEye is a reverse image search engine. The extension adds a context menu item so you can search for an image to find out where it came from, how it is being used, if modified versions of the image exist, or to find higher resolution versions.

JavaScript Deobfuscator by Wladimir Palant

Rated 4 out of 5 stars 26 reviews

33,725 users

This add-on shows you what JavaScript code runs on a web page, even if it is obfuscated and generated on the fly. Simply open JavaScript Deobfuscator from the Web Developer menu and watch the scripts being compiled/executed.

YSlow by YSlow

Rated 3 out of 5 stars 210 reviews

39,828 users

YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.
http://yslow.org is the official open source website.
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