My Favorite Add-ons

by kaelifa

21 Add-ons in this Collection

Greasemonkey by Anthony Lieuallen

Rated 4 out of 5 stars 1,643 reviews

609,189 users

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

iMacros for Firefox by Ipswitch, Inc.

Rated 4 out of 5 stars 1,226 reviews

300,299 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!

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,699 reviews

750,139 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 4 out of 5 stars 2,862 reviews

598,033 users

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

Web Developer by chrispederick

Rated 4 out of 5 stars 491 reviews

247,025 users

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

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 443 reviews

170,353 users

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

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

Rated 4 out of 5 stars 1,968 reviews

251,985 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 4 out of 5 stars 345 reviews

95,450 users

Manage any SQLite database on your computer.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 367 reviews

54,818 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 213 reviews

22,134 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

8,092 users

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

ShowIP by Anonymous user f5ac7e

Download Now

Experimental

Rated 3 out of 5 stars 283 reviews

13,732 users

Shows the ip address and additional information about the remote host using ip2info.org.
Also Displays Information about your local internet connection.
Privacy note: Data on what host you visit is only sent when you enable remote data.

Screengrab by Andy M

Rated 4 out of 5 stars 575 reviews

7,381 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.

Clear Cache Button by Chris Holtz

Rated 3 out of 5 stars 130 reviews

6,190 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 42 reviews

5,800 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