HELP !!! EDGE has taken over Pc as DEFAULT BROWSER

I will now not do away with EDGE, I DO NOT WANT GATES and his Comrades being my BROWSER , I Used to be the use of FIREFOX,and with the newset replace over weekend I were given this JUNK EDGE AS a default ,I’m going to atmosphere however there may be not anything to click on to switch out of that junk EDGE..ANy Lend a hand can be liked.