"Add to Search Bar" is the greatest and most useful search tool, I have ever seen:
Before I met "Add to Search Bar", I used for the search on various internet sites, the FireFox add-on "Mycroft Project". But with "Add to Search Bar" it is by far quicker to add a new site to the searchbar.
With only 3 clicks, you can make any web page with a search window to one of your preferred search engines and then structure all your search engines with the Firefox add-on "Organize Search Engines" in clear folders.