Super Search for Your Firefox
Do you want a better search engine than Google? Definitely, not Bing or Yahoo. You can have super search engine right in your Firefox.
Firefox Super Search toolbar allows you search result in 160 search engines. 70 of them can be searched right from toolbar itself. Others require a visit before search.
Basically you can search everything and anything on this earth. People, Video, Image, News, and Website all are one click away.
About drawback, it doesn’t have auto-complete and search-as-you-type suggestions.
It might suitable for people need search a lot. For me, Google and Yahoo is more than enough 
Do you really need this Super Search?