Firefox: форум сообщества

I use Firefox as my browser and have used Yahoo as my home page and browser for decades. Starting a few days ago, every time I type in the Yahoo search bar I get a Google search page result. I opened Bing and tried to search on their page and got the same result - Google. This is driving me crazy. I want my old Yahoo search back. I am at a loss as to how to fix this. I have looked at the Firefox settings and, of course, Yahoo is no longer listed. A shame. I don't know what to do at this point. Maybe the answer is to get rid of Firefox, but it has worked well for me for a long time. Any help will be appreciated. Thanks.

I need to stop google from automatically searching in the address bar so I can use about.config.

No help has worked from the web. Commands suggested by users don't exist or they use circular logic. In other words I can't go to about.config and make changes because I can't get to about.config because google searches it. I have turned off everything and nothing gets rid of the google search. I can go to other searches but that doesn't help.