List of keyword searches
From MozillaZine Knowledge Base
Remember that you can change the Keyword to fit your preferences. The keywords are case-insensitive - that means that 'dict', 'DICT', 'DiCt' and 'dICt' will all work the same. Remember: to use a keyword, type the keyword followed by a phrase or a word. The phrase or the word will replace the "%s" in the URL and that site will be accessed.