Are these the steps that you followed?

You can choose from different search providers such as Google, Yahoo or Bing when you search the Internet using Firefox. For more information, see the article Search bar - add, change and manage search engines on Firefox.

If you want to change the default search engine that Firefox uses,

In Firefox 33 or below:

1. Move the mouse cursor inside the search box at the top right of the Firefox window and click the down arrow next to the provider's logo.
2. If you would like to select another search engine, simply pick the engine from the dropdown list.

If you also want to change the order of the search engines, do this:

1. From the dropdown list, select Manage Search Engines....
2. In the upcoming window, you have all your search engines listed. To change the order, simply click one search engine and then select Move up or Move down from the buttons on the right side in order to change the order of the search engines.

Starting in Firefox 34:
Note: The following may not apply to localized versions of Firefox.

Use one of these methods to change the default search engine:

• Click the menu button and choose Options on Windows or Preferences on Mac or Linux, then select the Search settings panel.
• Click on the magnifying glass icon in the Search bar, then click on Change Search Settings, as shown here:

In the Search settings panel that opens, select a different search engine from the drop-down menu (see this screenshot).

Thank you. Using the triple bar menu options worked.

I am glad to hear that your problem has been resolved. If you haven't already, please select the answer that solves the problem. This will help other users with similar problems find the solution more easily.

Thank you for contacting Mozilla Support.