Web Developers

by The MAZZTer

12 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,755 reviews

2,568,004 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...

Web Developer by chrispederick

Rated 5 out of 5 stars 202 reviews

654,778 users

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

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 234 reviews

425,683 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Tamper Data by Adam Judson

Rated 4 out of 5 stars 126 reviews

128,035 users

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

IE Tab by PCMan, yuoo2k

IE Tab - an extension from Taiwan, features: Embedding Internet Explorer in tabs of Mozilla/Firefox...

JavaScript Deobfuscator by Wladimir Palant

Rated 4 out of 5 stars 26 reviews

57,168 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.

HttpFox by Martin Theimer

Rated 4 out of 5 stars 157 reviews

106,306 users

An HTTP analyzer addon for Firefox

FirePHP by cadorn

Rated 4 out of 5 stars 45 reviews

65,908 users

FirePHP enables you to log to your Firebug Console using a simple PHP method call.

Not using Firebug 1.9+ on Firefox 8+? See http://firephp.org/

DOM Inspector by SeaMonkey Council

Rated 5 out of 5 stars 59 reviews

148,961 users

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

Firecookie by Jan Odvarko

Rated 4 out of 5 stars 61 reviews

5,640 users

Firecookie is an extension for Firebug that makes possible to view and manage cookies in your browser

Firecookie is part of Firebug since Firebug 1.10

Console² by Philip Chee, zeniko

Rated 5 out of 5 stars 47 reviews

12,823 users

Console² (pronounced Console Squared or Console Two) replaces the JavaScript Console with what could be the next generation Error Console. From v0.5 includes the Console Filter extension previously available separately from the Console² website.

FireRainbow by BinaryAge

Rated 4 out of 5 stars 43 reviews

7,955 users

Javascript syntax highlighting for Firebug

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