My Favorite Add-ons

by kaelifa

21 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,755 reviews

2,661,358 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...

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 5 out of 5 stars 1,548 reviews

1,536,213 users

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

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 933 reviews

1,407,673 users

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

iMacros for Firefox by iMacros

Rated 4 out of 5 stars 366 reviews

299,601 users

Automate Firefox. Record and replay repetitious work. If you love the Firefox web browser, but are tired of repetitive tasks like visiting the same sites every days, filling out forms, and remembering passwords, then iMacros for Firefox is the soluti...

Web Developer by chrispederick

Rated 5 out of 5 stars 202 reviews

696,949 users

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

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

Rated 4 out of 5 stars 1,016 reviews

229,432 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!

SQLite Manager by lazierthanthou

Rated 5 out of 5 stars 29 reviews

217,017 users

Manage any SQLite database on your computer.

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 300 reviews

306,362 users

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

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 327 reviews

176,584 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 176 reviews

134,239 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.

FireQuery by BinaryAge

Rated 4 out of 5 stars 49 reviews

41,899 users

Firebug plugin for jQuery development

ShowIP by ShowIP Dev Team

Download Now

Experimental

Rated 3 out of 5 stars 280 reviews

102,175 users

Show the IP address of the current page in the status bar. It also allows querying custom information services by IP (right click) and see location and avaiable vouchers for shopping sites. Additionally you can copy the IP address to the clipboard.

Firefinder for Firebug by Robert Nyman

Rated 3 out of 5 stars 28 reviews

27,846 users

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

Clear Cache Button by Chris Holtz

Rated 4 out of 5 stars 128 reviews

160,306 users

Adds a clear cache toolbar button. After installing the extension, find the clear cache button in the toolbar customization...

Pixel Perfect by Mike Buckley, Lorne Markham, others

Rated 4 out of 5 stars 97 reviews

17,120 users

Pixel Perfect is a Firefox/Firebug extension that allows web developers and designers to easily overlay a web composition over top of the developed HTML.
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