Addon Developers Kit

by matagus

27 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,791 reviews

2,434,982 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...

Web Developer by chrispederick

Rated 5 out of 5 stars 217 reviews

600,881 users

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

SQLite Manager by lazierthanthou

Rated 5 out of 5 stars 39 reviews

210,728 users

Manage any SQLite database on your computer.

Tamper Data by Adam Judson

Rated 4 out of 5 stars 132 reviews

120,955 users

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

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 157 reviews

181,651 users

View HTTP headers of a page and while browsing.

JSONView by Ben Hollis

Rated 5 out of 5 stars 133 reviews

108,254 users

View JSON documents in the browser.

about:addons-memory by Nils Maier

Adds an about:addons-memory page that details add-on memory usage

DOM Inspector by SeaMonkey Council

Rated 5 out of 5 stars 65 reviews

145,167 users

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

Add-on Compatibility Reporter by Mozilla

Rated 4 out of 5 stars 213 reviews

84,029 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.

View Cookies by Edwin Martin

Rated 4 out of 5 stars 43 reviews

30,665 users

It adds a tab to the Page Info dialog box, which shows the cookies belonging to the current page.

Extension Auto-Installer by Wladimir Palant

Rated 5 out of 5 stars 13 reviews

3,811 users

Extension Auto-Installer is a helper for Firefox/SeaMonkey/Thunderbird extension developers: it allows automatically adding or updating browser extensions, e.g. via command line tools. This makes testing your changes easier.

Clear Cache Button by Chris Holtz

Rated 4 out of 5 stars 130 reviews

90,221 users

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

Cache Status by Jason Purdy, Andy Portmen

Rated 4 out of 5 stars 110 reviews

21,451 users

Easy cache status & management from status...

GitHub Extension Installer by Diego Casorran

Rated 5 out of 5 stars 8 reviews

2,858 users

Install Browser Extensions straight from GitHub Repositories

MemChaser by Automation Development

Rated 4 out of 5 stars 15 reviews

3,050 users

Firefox extension to chase the memory usage and garbage collector activity.
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