We can change the default search engine. Go to the preferences and click search.(type about:preferances#search in address bar and hit enter) Then scroll down to the Default Search Engine section and click the drop-down menu where it instructs the user to Choose the default search engine to use in the address bar and search bar.

I didn't ask HOW to change the search engine, I asked HOW COME a privacy concerned browser use Google as a default search engine. It's like hiring the NSA to protect you from being spied.

That's all are Deals for the future of Mozilla... ;) If we want we can change that easily... I also personally recommend duck duck go...

"Mozilla, a non-profit corporation, historically has earned most of its revenue from search. As CNET reported at the time Mozilla switched to Yahoo in the US, its 2012 revenues were $311m. Newer regional search deals with Google, Baidu, Yahoo, and Yandex helped bump Mozilla revenues to $421m by 2015."

Mozilla actually wanted to get away from Google being a default search engine in many Firefox locales that had it.

In 2014 Yahoo was default search engine for many locales instead of Google. https://blog.mozilla.org/blog/2014/11/19/promoting-choice-and-innovation-on-the-web/

In 2017 due to issues Mozilla was having with Yahoo they needed a new default search engine so Mozilla reluctantly went back to Google in place of Yahoo. https://blog.mozilla.org/blog/2017/11/14/firefox-features-google-as-default-search-provider-in-the-u-s-canada-hong-kong-and-taiwan/

Then shortly after as of Firefox 57.0 and later Mozilla dropped Yahoo completely due to lawsuit and such as mentioned in https://support.mozilla.org/en-US/forums/contributors/712925

Ok, I get it. It's a matter of money.

Firefox uses Google, a totally-no-privacy-at-all search engine, as default because they get money from them. It's like Greenpeace taking money from Coca-Cola.

It kind of stinks, but that's the way it goes.

Thank you all for your answers.