One big complaint about search engines is they are all rather vanilla with their visual representation.  Wouldn’t it be better if you could color code things a ‘bit more?  One Greasemonkey script that does a great job at this is Colorful Search.

Want to quickly search for more social media or search engine information for any web page or link on the Web?  yExplore 2 is an excellent add-on for Firefox that does exactly that, and more.
By simply right-clicking on any page you can find out the following:

Yahoo Site Explorer Backlinks & Index
Google Backlinks, Index, Cache
Archive.org
Bing Index
Delicious saves for a domain.
Highlighting of NoFollow links.
Whois Info
and much more!

You can get more information about yExplore 2 [...]

Thanks to Firefox and some of the great add-ons that have been developed for it, your browser is your best friend when it comes to web site design.  From CSS tools, to promoting your domain, here are 10 of the most popular web designer tools for Firefox.
Any of these add-ons would be great to add to your own proverbial web designer’s toolbelt.

ColorZilla – This advanced eyedropper and color picker will help you find out exactly what color is being used [...]

Search engine optimization (or otherwise known as SEO) has always been a mystery to me. Never had understood it, and I do not think I would ever want to understand it. It seems like all the SEO experts I have ever met are always a little on the grumpy side as well. If you want the SEO tools without becoming a grump, then I would suggest checking out the RankQuest SEO Toolbar.
Rankquest SEO(Search Engine Optimization) Toolbar provides [...]

SeoQuake is a very neat extension available for Firefox that is a search engine optimizer’s best friend. It has been developed for the look-see of site’s parameters in search results of Google, Yahoo, MSN, Yandex, Rambler search engines and any other pages as well.
+ Learn More About and Install the SEOQuake Extension!

Search engine optimization (SEO) is important for just about every Web master out there. You always want to know where your competitors are and how you are standing in the search engine rankings. SEO for Firefox hopes to make your optimization process just a little easier.
Want to know why Google or Yahoo! ranks pages? If so this is the Firefox extension for you. SEO for Firefox pulls in many useful marketing data points to make it easy get [...]

When it comes to search engine optimization (SEO) work, you can never get enough tools to help you get the job done. You can think of the Niche Watch Tool as one more thing to hang from your search engine optimization tool belt. This extension almost acts as a spy to see what your Online competitors are up to, and how close you are to beating them.
[Learn More About the Niche Watch Tool!]

Search engine optimization (SEO) has become big business in the Online world we live in today. Everybody wants to know how to “work” the search engines so they can get themselves in as many results as possible. What SEO Tools does this extension provide? It comes with: spider simulator, keyword density, determine link price, Yahoo web rank, domain stats, HTTP headers, robots text viewer, whois lookup, keyword suggestions, web site country and domain age.
[Learn More About [...]