Firefox OpenSearch add-on that let's you search the web from the browser search and address bar. Includes same searches on Google, Yahoo, BING, and ASK search engines with a click of an icon. Searchen Networks®, or Searchen®, is a meta search engine and directory service in the United States and internationally. This add-on simply makes Searchen Networks® quickly available from your browsers search box while also checking other major search engines. Serious About Search ® is a registered trademark of Searchen Networks ® Inc.