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 1,761 reviews

2,278,373 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 1,568 reviews

1,397,355 users

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

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 943 reviews

1,245,147 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 368 reviews

503,143 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 206 reviews

572,641 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

190,259 users

Manage any SQLite database on your computer.

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

Rated 4 out of 5 stars 1,059 reviews

194,232 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!

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 300 reviews

253,988 users

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

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 327 reviews

145,510 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 183 reviews

108,852 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.

ShowIP by ShowIP Dev Team

Download Now

Experimental

Rated 3 out of 5 stars 283 reviews

79,585 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

23,231 users

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

FireQuery by BinaryAge, Jan Odvarko

Rated 4 out of 5 stars 51 reviews

33,412 users

Firebug plugin for jQuery development

Clear Cache Button by Chris Holtz

Rated 4 out of 5 stars 128 reviews

150,572 users

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

CSS Usage by Teun van Eijsden

Rated 4 out of 5 stars 38 reviews

23,290 users

Firebug extension to view which CSS rules are actually used.
  1. 1
  2. 2
Results 115 of 21

What are Collections?

Collections are groups of related add-ons that anyone can create and share.

Explore Collections

Recently Viewed