Geral

by João Paulo Noronha

43 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,837 reviews

1,949,681 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...

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

Rated 4 out of 5 stars 1,259 reviews

283,940 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!

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 4 out of 5 stars 1,795 reviews

1,212,279 users

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

HTTPS Everywhere by EFF Technologists

Rated 4 out of 5 stars 115 reviews

216,536 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.

FoxyProxy Standard by Eric H. Jung, groeg, others

Rated 4 out of 5 stars 362 reviews

261,336 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.

Web Developer by chrispederick

Rated 5 out of 5 stars 248 reviews

435,471 users

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

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 971 reviews

436,680 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 664 reviews

478,411 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...

Tamper Data by Adam Judson

Rated 4 out of 5 stars 140 reviews

99,294 users

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

Personas Plus by Mozilla

Rated 3 out of 5 stars 932 reviews

274,313 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.

RightToClick by IKRG

Stops javascript annoyances such as forbidden right click, forbidden text selection or disabled features like copy/save images from web-pages.

JSONView by Ben Hollis

Rated 5 out of 5 stars 165 reviews

104,407 users

View JSON documents in the browser.

Beyond Australis by Quicksaver

Rated 5 out of 5 stars 299 reviews

34,761 users

Australis was the code name for the current Firefox theme, it aimed to make a great browser look awesome. Now you can go one step further and also make it feel awesome to use!

JavaScript Deobfuscator by Wladimir Palant

Rated 5 out of 5 stars 20 reviews

48,284 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 215 reviews

70,849 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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