Useful packages for Linux

I like to install some useful stuff on my linux machine.
To make my workstation more productive. :)

Here is the list of packages I usually install:

- screen
- freenx.i386

I use yum package manager on Fedora.

Web Developer - Awesome Extension for firefox

I was looking for web developer tool for firefox which aids in designing web pages especially with monitors of different resolutions. I knew about a developer toolbar provided by Microsoft for IE but I was looking for a similar extension for firefox when I stumbled upon Web Developer extension for firefox.

I just downloaded the latest version for Mozilla firefox.
It's awesome!!!



A decent summary of features:

• Dynamic updating of css of a given page
• Images: show their paths, sizes, point out images with no 'alt' attributes, etc.
  
• All types of page info (cookies, headers, more...)
• Utils to clear cache, session cookies, javascript debugger
• Helpful outlining: like outlining all block elements
• Resize the browser window to various resolutions
• Validation : HTML/XHTML, css, validating of link...
• Disabling of images, javascript, ...
• Links to specifications: css1, css2, HTML, XHTML, DOM...
• Manipulating Forms ... various utilities