My Favorite Add-ons

by madvic

24 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,933 reviews

17,456,615 users

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,063 reviews

1,812,048 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 258 reviews

405,943 users

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

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 380 reviews

223,645 users

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

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 362 reviews

122,553 users

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

YSlow by YSlow

Rated 3 out of 5 stars 221 reviews

62,802 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.

CacheViewer by benki

Rated 4 out of 5 stars 219 reviews

61,880 users

This extenion is GUI Front-end of "about:cache"...

Firefinder for Firebug by Robert Nyman

Rated 3 out of 5 stars 28 reviews

17,372 users

Finds HTML elements matching chosen CSS selector(s) or XPath expression

FirePHP by cadorn

Rated 4 out of 5 stars 50 reviews

34,050 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/

SQL Inject Me by Security Compass

Download Now

Experimental

Rated 4 out of 5 stars 26 reviews

10,639 users

SQL Injection vulnerabilites can cause a lot of damage to a web application. A malicious user can possibly view records, delete records, drop tables or gain access to your server. SQL Inject-Me is Firefox Extension used to test for SQL Injection vuln...

RAMBack by Stuart Parmenter

Rated 3 out of 5 stars 143 reviews

22,665 users

RAMBack will cause Firefox to issue an internal notification to free up memory that is otherwise held for performance purposes. Additional items will be hooked into this notification in the future.

Screengrab by Andy M

Rated 4 out of 5 stars 587 reviews

17,430 users

Screengrab! saves webpages as images... but not for new versions of Firefox.

FF changes too fast and I don't have the time to maintain it anymore. Bugs have developed that I am not in a position to investigate.

Therefore, Screengrab is EOL.

CSS Usage by Teun van Eijsden

Rated 4 out of 5 stars 40 reviews

16,004 users

Firebug extension to view which CSS rules are actually used.

Pixel Perfect by Mike Buckley, Lorne Markham, others

Rated 4 out of 5 stars 101 reviews

11,185 users

Pixel Perfect is a Firefox extension that allows web developers and designers to easily overlay a web composition with semi-transparent layers (images). These layers can be consequently used for per pixel comparison between the page and a layer.

CodeBurner for Firebug by SitePoint

Rated 3 out of 5 stars 35 reviews

21,318 users

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