What are the tools used during test preparation by a tester?

What are the tools used during test preparation by a tester?

-Firebug – Used to edit, debug and monitor a web site’s HTML, CSS, Javascript.

-Selenium – An open source software testing framework for web applications.

-OpenSTA – A GUI based web server benchmarking utility to test the heavy load performance of HTTP/HTTPS.

-WinSCP – An open source FTP client for MS Windows for testing file uploading and downloading

-Web Developer toolbar for Firefox : To validate HTML, CSS and links from menu bar.

-YSlow for FireBug – Used for analyzing web page performance by testing the web page components.