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Web Developer

Web Developer is a nifty Firefox extension which provides some very handy tools for web developers, including CSS manipulation, object highlighting, code validation, browser resizing, and lots more.

Browser Plugins

Tamper Data

Firefox plugin by Adam Judson. Use Tamper Data to view and modify HTTP/HTTPS headers and post parameters, trace and time http response/requests, and security test web applications by modifying POST parameters.

Browser Plugins Packet Analysis Web Applications


Firefox plugin by Jan Dittmer. Shows the IP address of the current page in the status bar. It also allows querying custom services by IP (right mouse button) and Hostname (left mouse button), like whois, netcraft. Additionally you can copy the IP address to the clipboard. This extension was formerly ...

Browser Plugins Enumeration

Live HTTP Headers

A Firefox plugin which allows you to view the HTTP headers of a live connection as they are sent and received.

Browser Plugins


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.

Browser Plugins