Search engines help us navigate the web, but Google and Bing aren't the only helpers that exist out there. There are also a myriad of specific search engines, like Creative Commons or Answers.com. Sometimes, one other search engine is more helpful than the other. If you're an avid user of Firefox, the search engine bar is actually more useful than you think, and includes all of these helpful services. Read on to find out how to utilize these search engines in the Firefox browser.