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 1,773 reviews

2,281,631 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 1,588 reviews

1,341,764 users

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

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 954 reviews

1,225,261 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 375 reviews

375,722 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 213 reviews

545,434 users

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

SQLite Manager by lazierthanthou

Rated 5 out of 5 stars 35 reviews

194,758 users

Manage any SQLite database on your computer.

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

Rated 4 out of 5 stars 1,080 reviews

192,720 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

245,891 users

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

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 332 reviews

146,109 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 192 reviews

104,134 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.

Firefinder for Firebug by Robert Nyman

Rated 3 out of 5 stars 28 reviews

22,880 users

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

Clear Cache Button by Chris Holtz

Rated 4 out of 5 stars 129 reviews

147,618 users

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

ShowIP by ShowIP Dev Team

Download Now

Experimental

Rated 3 out of 5 stars 284 reviews

70,703 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.

FireQuery by BinaryAge, Jan Odvarko

Rated 4 out of 5 stars 51 reviews

32,067 users

Firebug plugin for jQuery development

CSS Usage by Teun van Eijsden

Rated 4 out of 5 stars 38 reviews

21,937 users

Firebug extension to view which CSS rules are actually used.
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