Some of the people I know simply don't want to hear about Facebook or creating an account on that site. While most of them have no valid reason for this attitude I think it's their right to hate Facebook or simply ignore it. On the other hand stuff that can be found on Facebook regarding a certain topic becomes more and more relevant with each day so... how can one search on Facebook without having an account? The answer is Facebook Search today's topic of course! ;)
I know this kind of Firefox addon isn't really interesting - after all we're only talking about a search engine to add to your browser and nothing more but the fact that it works as it should and it gets its kind of job done should be more than enough to make it interesting don't you think? After all the numbers don't look that interesting yet - Facebook Search 20100807 was last updated on the 27th of August 2010 and currently has a rating of 4/5 stars after 5 user reviews and no less than 17112 downloads.
Other than the above I think you should know that Facebook Search supports phrase search exclusions and the OR operator not to mention the fact that it goes like a charm with Quick Search Bar a great addon for Firefox 4 we talked about at the end of March. Well... I guess you don't need any tutoring on how to press a button and type what you're looking for so I guess that's all for now folks! ;)