Some programs come with free toolbars or search providers which change the default search in your web browser. So how do you restore the default search provider? Thankfully it’s a pretty simple process. Click on the search icon to the left of your search box in Firefox and click “Manage Search Engines…”
From this screen you can remove your search providers by clicking on the name of one you don’t want and clicking the remove button. You can also arrange the order of the search providers in the list by clicking a name and clicking Move Up or Move Down. To get more search providers click “Get more search engines..” and select the search engine you want from the list.