MatthewWebDev

by matthewxu

33 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,828 reviews

2,243,375 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...

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 981 reviews

1,315,302 users

Customize the way a web page displays or behaves, by using small bits of JavaScript.

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,563 reviews

2,315,824 users

The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

iMacros for Firefox by Ipswitch

Rated 4 out of 5 stars 391 reviews

461,114 users

Automate Firefox. Record and replay repetitive tasks. If you're tired of manually visiting the same sites, filling out forms, downloading files and extracting data, then iMacros is for you! Save time, effort and money with iMacros browser automation!

Element Hiding Helper for Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 446 reviews

692,231 users

Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.

SQLite Manager by lazierthanthou

Rated 5 out of 5 stars 46 reviews

206,016 users

Manage any SQLite database on your computer.

Tamper Data by Adam Judson

Rated 4 out of 5 stars 135 reviews

113,438 users

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

JavaScript Debugger by James Ross, Robert Ginda, others

Rated 4 out of 5 stars 50 reviews

119,669 users

As of Firefox 33, Venkman *no longer works*, as the APIs which it needs have been removed.

Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aimed to provide a powerful JavaScript debugging environment for Mozilla based browsers.

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 306 reviews

283,448 users

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

HackBar by Johan Adriaans, Pedro Laguna

Rated 4 out of 5 stars 41 reviews

33,572 users

Simple security audit / Penetration test tool.

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 168 reviews

159,827 users

View HTTP headers of a page and while browsing.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 349 reviews

148,435 users

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

RightToClick by IKRG

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

RefControl by James Abbatiello

Rated 4 out of 5 stars 182 reviews

82,978 users

Control what gets sent as the HTTP Referer on a per-site basis.

XPath Checker by Brian Slesinsky

Rated 5 out of 5 stars 19 reviews

28,462 users

An interactive editor for XPath expressions.
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