Because you've set google as default search engine in Options.

Firefox itself is a web browser and not a search engine as Google is a search engine. edit: https://support.mozilla.org/en-US/kb/manage-my-default-search-engines-firefox-android <strike>https://support.mozilla.org/en-US/kb/change-your-default-search-settings-firefox</strike> as this is for desktop Firefox. https://blog.mozilla.org/blog/2017/11/14/firefox-features-google-as-default-search-provider-in-the-u-s-canada-hong-kong-and-taiwan/

Possibly one of these articles will help: For Firefox ''Focus'' for Android: * [[Change your default search on Firefox Focus for Android]] * [[Add a search engine to Firefox Focus for Android]] * [[Remove a search engine in Firefox Focus for Android]] For Firefox for Android: * [[Manage my default search engines in Firefox for Android]]