how to change firefox default search to google. In previous version of firefox, user was required to enter the site name in address bar; e.g. "twitter" and on hitting enter the browser directly opens the website. Whereas in current version on doing the same task it opens the yahoo search page with twitter as search query. Is there any way the previous version feature can be enabled in this current version. Also, can we change the search engine from yahoo to google in case the browser is unable to redirect to a perticular site.