Web development

by marwac6

16 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,759 reviews

2,537,919 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...

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,458 reviews

2,251,496 users

The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 942 reviews

1,333,705 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 234 reviews

410,682 users

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

FoxyProxy Standard by Eric H. Jung, groeg, others

Rated 4 out of 5 stars 333 reviews

342,278 users

FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.

Web Developer by chrispederick

Rated 5 out of 5 stars 203 reviews

636,649 users

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

Flagfox by Dave G

Rated 5 out of 5 stars 621 reviews

719,625 users

Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...

BetterPrivacy by IKRG

Rated 5 out of 5 stars 422 reviews

619,972 users

Remove or manage a new and uncommon kind of cookies, better known as LSO's.The BetterPrivacy safeguard offers various ways to handle Flash-cookies set by Google, YouTube, Ebay and others...

Latest updates: See bottom link 'version history'!

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 912 reviews

627,737 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!

Evernote Web Clipper by Evernote

Rated 3 out of 5 stars 732 reviews

429,798 users

Use the Evernote Web Clipper to save things you see on the web into your Evernote account.

IE Tab V2 (Enhanced IE Tab) by ietab.net

Rated 4 out of 5 stars 413 reviews

609,556 users

Note: If you are encountering the Connecting... problem see instructions below.

The updated, fully supported IE Tab. Embed IE in a Firefox tab. IE Tab Features: FF 4+ support, IE 7-9 compatibility modes, old IE Tab settings import.

YSlow by YSlow

Rated 3 out of 5 stars 180 reviews

122,973 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 95 reviews

66,601 users

Wappalyzer is a browser extension that identifies software on websites.

Firepicker by thedarkone2

Rated 5 out of 5 stars 53 reviews

23,308 users

Simple color picker plugin for Firebug.

Firediff by kpdecker

Rated 4 out of 5 stars 16 reviews

26,244 users

Track Changes in Firebug
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