Great Firefox extensions

• Screen grab – takes a screenshot of the webpage and saves it as an image file.This will save your time than use other methods.

• Server Spy  – indicates what brand of HTTP server (Apache, IIS, etc.

• AdSense Preview  – preview the Google AdSense ads that would appear on that page.

• SEO for Firefox  – pulls useful market research data right into Google's and Yahoo!'s search results, including Google PR, Age, links, Alexa rank, WHOIS, and more. It also adds a few helpful links to the top of the search pages, including Google Trends, Google Traffic Estimator, and the Overture View Bid tool.

• Server Switcher  – easily switch between sites on your development and live servers by clicking the switch server icon.

• FireBug  – an advanced debugger console that lets you monitor your JavaScript, CSS, and HTML.

• IE Tab (http://ietab.mozdev.org) – sick of swapping between Internet Explorer and Firefox when testing out a web page you’re developing? With IE Tab you can view Internet Explorer in a Firefox Tab!

• FireFTP  – free, secure, cross-platform FTP client that provides easy and intuitive access to FTP servers. This eliminates a piece of software for those of you who use a separate program for FTP.

• Professor X  – lets you view header information without having to view source code. The page “slides” down and Professor X shows you the contents of the page's head element, including Meta, Script and Style content.