developer web

by Intrudere

18 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,783 reviews

2,427,357 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 956 reviews

1,266,788 users

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

SQLite Manager by lazierthanthou

Rated 5 out of 5 stars 37 reviews

205,915 users

Manage any SQLite database on your computer.

UnMHT by arai_a

Rated 5 out of 5 stars 217 reviews

82,018 users

UnMHT allows you to view MHT (MHTML) web archive format files, and save complete web pages, including text and graphics, into a single MHT file in Firefox/SeaMonkey.

YSlow by YSlow

Rated 3 out of 5 stars 192 reviews

109,194 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.

Wappalyzer by Elbert Alias

Rated 4 out of 5 stars 98 reviews

71,265 users

Wappalyzer is a browser extension that identifies software on websites.

DOM Inspector by SeaMonkey Council

Rated 5 out of 5 stars 65 reviews

138,209 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.

Firefinder for Firebug by Robert Nyman

Rated 3 out of 5 stars 28 reviews

24,104 users

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

CodeBurner for Firebug by SitePoint

Rated 3 out of 5 stars 33 reviews

35,907 users

CodeBurner is a Firefox add-on that integrates with Firebug, to extend it with reference material for HTML and CSS.

FireQuery by BinaryAge, Jan Odvarko

Rated 4 out of 5 stars 52 reviews

33,560 users

Firebug plugin for jQuery development

Locationbar² by Dao Gottwald

Rated 4 out of 5 stars 256 reviews

16,517 users

More than a textbox.

Console² by Philip Chee, zeniko

Rated 5 out of 5 stars 48 reviews

10,061 users

Console² (pronounced Console Squared or Console Two) replaces the JavaScript Console with what could be the next generation Error Console. From v0.5 includes the Console Filter extension previously available separately from the Console² website.

Open IT Online by Denis Remondini

Rated 4 out of 5 stars 43 reviews

4,503 users

Open IT Online allows you to open documents and images online without the need of any software to be installed. It supports Google Docs, Zoho, View Docs Online, Vuzit to edit/view documents and Snipshot, Pixlr, Sumo Paint, etc. to edit/view images.

Power Twitter by Narendra Rocherolle, Nick Wilder

Rated 4 out of 5 stars 167 reviews

3,959 users

Makes Twitter Better!

Uppity by Anthony Lieuallen

Rated 5 out of 5 stars 44 reviews

5,928 users

Navigate up one level (directory). It will remove an in-page anchor, the querystring, the file, and the last directory in that order, whichever is first found...
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