Generally most of the Internet users open the browser and type in Google.com to get the search page and then type their specific search text. You can also do a quick search by using the Firefox Add Keyword for this search feature.
Open google.com in Firefox and right click on the search text box. This should display a menu with Add Keyword for this Search feature. On selecting the option the following dialog should appear.
Now type Google for the name field and provide a Keyword as g for you entry and click Ok.
Now if you want to do a search in google for java certification.Open Firefox browser and type g <space> Java Certifications in the address bar and press enter. This would display the search result page for the search text Java Certifications.