Astral-devel pack

by Alexander Smirnov

111 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,759 reviews

2,551,484 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...

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 234 reviews

412,346 users

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

Web Developer by chrispederick

Rated 5 out of 5 stars 203 reviews

640,157 users

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

SQLite Manager by lazierthanthou

Rated 5 out of 5 stars 30 reviews

207,423 users

Manage any SQLite database on your computer.

Tamper Data by Adam Judson

Rated 4 out of 5 stars 127 reviews

125,139 users

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

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 300 reviews

282,951 users

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...

FirePath by Pierre Tholence

Rated 4 out of 5 stars 22 reviews

62,118 users

FirePath is a Firebug extension that adds a development tool to edit, inspect and generate XPath 1.0 expressions, CSS 3 selectors and JQuery selectors (Sizzle selector engine).

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 153 reviews

190,064 users

View HTTP headers of a page and while browsing.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 327 reviews

162,589 users

Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

JavaScript Deobfuscator by Wladimir Palant

Rated 4 out of 5 stars 26 reviews

56,141 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 159 reviews

105,703 users

An HTTP analyzer addon for Firefox

JSONView by Ben Hollis

Rated 5 out of 5 stars 125 reviews

98,085 users

View JSON documents in the browser.

SeoQuake SEO extension by SeoQuake Team

Rated 4 out of 5 stars 205 reviews

70,243 users

Seoquake is a Firefox SEO extension aimed primarily at helping web masters who deal with search engine optimization (SEO), social media optimization (SMO) and internet promotion. Seoquake allows to investigate many important SEO parameters.

Selenium Expert (Selenium IDE) by Samit Badle

Rated 5 out of 5 stars 1 review

26,882 users

This plugin is my attempt to bring the wonderful world of inspections, tips, hints, fixes and refactoring to Selenese! The Selenium Expert goes through your selenium test cases suggesting improvements, giving tips and even lets you apply them.

JS Switch by Hemiola SUN

Rated 4 out of 5 stars 20 reviews

12,738 users

Add a toolbar button or an option in Tool menu to toggle JavaScript
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