How to change your default search engine in Firefox

Desktop

Open Firefox on your desktop computer.

Open the browser menu (three lines) and select Settings.

Select Search from the menu on the left.

Firefox Desktop settings sidebar

From here, you can change your default search engine.

Open the Firefox browser on your Android device.

Tap the search engine icon to the left of the URL search bar.

Tap Search settings > Default search engine.

From here, you can change your default search engine.

Open the Firefox browser on your iPhone or iPad.

Open the browser menu (three lines).

Select Settings to open the Settings menu.

Firefox iOS select settings

Under “General”, tap Search.

From here, you can change your default search engine.

Prior versions on GitHub.