For all the hoopla about Chrome… Mozilla Firefox (ideally version 3 and over) is the browser of choice for many Internet marketers.

Why? Simply because there are tons of powerful free extensions and plugins for Firefox that can give you invaluable information on the fly.

Aaron Wall’s plugin, ‘SEO For Firefox‘ is one such tool. In fact, it’s one of my favorite search engine optimization (SEO) extensions. (I’ll cover some of the others in future articles.)

What does SEO For Firefox do? Well, when you perform a search using Google or Yahoo, it yields a host of other data about each of the search results.

Specifically, the tool pulls market research data into each of the search results, including the following:

• PR: Google PageRank - an estimate of global link authority.
• Age: age pulled from Archive.org - the first time a page was indexed by Archive.org’s spider (and theoretically the search engines).
• Links: Yahoo linkdomain - a rough estimate of the total number of links pointing at a domain.
• .edu Link: Yahoo .edu linkdomain - a rough estimate of the number of .edu links pointing at a domain.
• .edu Page Link: Yahoo .edu link - a rough estimate of the number of .edu links pointing at a specific page.
• .gov Link: Yahoo .gov linkdomain - a rough estimate of the number of .gov links pointing at a domain.
• Page Links: Yahoo link - a rough estimate of the number of links pointing at a page.
• del.icio.us: number of times a URL has been bookmarked on Del.icio.us.
• Technorati: an estimate of the number of links to a site from blogs.
• Alexa: rank based on website traffic (heavily biased toward Internet marketing and webmaster sites).
• Cached: Google site - how many pages from a site are indexed in Google.
• dmoz: based on the number of pages from a site listed in DMOZ, and the total number of pages listed in DMOZ that reference that URL.
• Bloglines: an estimate of how many people are subscribed to a particular blog via Bloglines.
• dir.yahoo.com: indicates whether a site is listed in the Yahoo Directory or not.
• WhoIs: a link to the whois data for a site.

SEO For Firefox also provides links to the given data sources to enable you to verify and further analyze the data. You can also choose which data points and links you want activated at a given time.

SEO For Firefox is a handy, free extension that can save you a LOT of time when conducting keyword, SEO and competitive research.

Just one tip - and this applies to similar such extensions - turn SEO For Firefox OFF when you are casually browsing.

If you always have it switched on, then each time you perform a search, you will effectively be running hundreds of search engine queries… to the point where the search engines may view you as a robot and ban you for a certain period of time. (This has happened to me, so I speak from experience!)

==> Click here to get SEO For Firefox