In response to a post on the SEO UK blog about one of my favourite firefox extensions, I thought I would put together a list of all of the SEO Firefox extensions which I could not live without.

There are various tools which I use on a daily basis which aid me with my SEO duties. All of the tools are free and can be set up as add-ons within Mozilla Firefox. They work fantastically well when looking at sites and giving advice, when you need statistics which are easily at hand and on the fly.

SEO Quake - https://addons.mozilla.org/firefox/3036/

I couldn’t live without this tool, there is so much to it. It provides on the fly SEO parameters which enable you to investigate many factors of a website. When searching within Google, MSN and Yahoo it will add extremely useful information under each result immediately showing you the PR (PageRank) indexed pages and number of inbound links. There is so much more to this tool, visit the SEO Quake website for more information.

SEO for Firefox - http://tools.seobook.com/firefox/seo-for-firefox.html

For even more extensive information within the search results, SEO books firefox tool provides everything you need to find out why a site is ranking so well. It’s easy to switch off and on (just click the logo at the bottom of your browser). I use this tool everyday when looking at competitors which I want to target.

Webmaster Toolbar - https://addons.mozilla.org/firefox/60/

Switch off java script, styles, images.. swtich off everything! This is a great tool for testing how crawlable your site is. Switch off your java script menus and try navigating around your website, if you can’t, you need to change your navigation. Great tool!

Groowe Search Toolbar - https://addons.mozilla.org/firefox/534/

This is great for searching in general. If you are like me and need to make hundreds of searches everyday, this tool will put a search toolbar in your firefox browser which with a simple click will show you results from all of the major search engines. If I need to view rankings for a site, I can type the keywords in once, and then search multiple search engines very quickly.

SEO Open - https://addons.mozilla.org/firefox/570/

This provides some basic tools to gain important SEO statistics about the site you are visiting. I like the ease of use with this tool, if you are on a page which you want to analyse, just right click and select one of the parameters to test.

SEO Links - http://www.webmasterbrain.com/seo-tools/firefox-extensions/seo-links/

Hover over any link and immediately see ranking and popularity data for the URL. This is the easiest and quickest way to get important data about any link on your page.

HTML Validator - https://addons.mozilla.org/firefox/249/

If your code isn’t nice and clean, you may have problems getting your pages in the search engine index . This tool will show you where the errors are and what line you can find them on. Make sure all your pages are getting a nice green tick! It’s a nice feeling when they do…

Search Status - https://addons.mozilla.org/firefox/321/

A nice easy tool which basically shows you the Google PR and Alexa popularity score of every page you visit. A keyword density analyser, no follow highlighter and related links functions are also included.

Customise Google - http://www.customizegoogle.com/

A great tool, not just for SEO but for searching in general. This will add links at the top of your SERP’s which will quickly take you to other search engine results. You can also do some clever things when looking for images. But the most useful SEO function is the suggest tool which pop up while you type to show you popular terms and the amount of competing websites.

Let me know of any other extensions which help you with your SEOing. There are lots of non SEO add-ons which I utilise but these are definitely my favourite SEO Firefox extensions.