Optimal Solutions

by e-mike

22 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,837 reviews

2,177,516 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...

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 998 reviews

1,235,845 users

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

Selenium IDE by Jason Huggins, Adam Goucher, others

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Experimental

Rated 5 out of 5 stars 9 reviews

93,185 users

Selenium IDE is an integrated development environment for Selenium tests. It is implemented as a Firefox extension, and allows you to record, edit, and debug tests.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 263 reviews

333,149 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 965 reviews

469,502 users

FireFTP is a free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers.

Check out my new project, FireSSH!

Web Developer by chrispederick

Rated 5 out of 5 stars 235 reviews

478,687 users

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

FirePath by Pierre Tholence

Rated 4 out of 5 stars 22 reviews

93,826 users

FirePath is a Firebug extension that adds a development tool to edit, inspect and generate XPath 1.0 expressions, CSS 3 selectors and JQuery selectors (Sizzle selector engine).

Xmarks Sync by Xmarks Inc.

Rated 4 out of 5 stars 2,559 reviews

315,443 users

Xmarks is the #1 bookmarking and open tab add-on. Keep your bookmarks, and open tabs backed up and synchronized across computers and browsers. Mobile phones with Premium access. Utilize LastPass to sync passwords!

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 309 reviews

267,948 users

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

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 170 reviews

148,876 users

View HTTP headers of a page and while browsing.

Save Link in Folder by Achim Seufert

Rated 4 out of 5 stars 42 reviews

4,384 users

Easily save links in personally customized...

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 354 reviews

142,788 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 217 reviews

82,045 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.

ChatZilla by Gijs Kruitbosch, Robert Ginda, others

Rated 4 out of 5 stars 127 reviews

128,701 users

A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.

FirePHP by cadorn

Rated 4 out of 5 stars 48 reviews

43,243 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/
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