Firefox OS (Advanced)

by Ahmad Salah

9 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,828 reviews

2,089,718 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 983 reviews

1,271,763 users

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

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 262 reviews

329,513 users

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

Web Developer by chrispederick

Rated 5 out of 5 stars 228 reviews

490,739 users

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

SQLite Manager by lazierthanthou

Rated 5 out of 5 stars 46 reviews

194,591 users

Manage any SQLite database on your computer.

Tamper Data by Adam Judson

Rated 4 out of 5 stars 135 reviews

107,457 users

Use tamperdata to view and modify HTTP/HTTPS headers and post parameters...

Add-on Compatibility Reporter by Mozilla

Rated 4 out of 5 stars 213 reviews

67,520 users

Help make Firefox better. The Add-on Compatibility Reporter enables you to report if the Firefox add-ons that you're using are working properly.

Pixel Perfect by Mike Buckley, Lorne Markham, others

Rated 4 out of 5 stars 102 reviews

12,509 users

Pixel Perfect is a Firefox extension that allows web developers and designers to easily overlay a web composition with semi-transparent layers (images). These layers can be consequently used for per pixel comparison between the page and a layer.

Mozilla Labs - Jetpack Prototype by Mozilla Labs

Rated 4 out of 5 stars 27 reviews

152 users

Jetpack Prototype is an experiment in making it easy to build Firefox add-ons using common web technologies.

What are Collections?

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

Explore Collections

More by this User

See all collections by this user