Adding brave search as default engine

I've added the search engine default for brave in Firefox which I've used for since the beginning but it won't show up as choice in my settings choice and I added in I type it in it says the string is wrong. It is not wrong it doesn't add in because your software browser Firefox isn't working correctly what is the problem. Currently it says removed if I try to add it again yet it doesn't show up why? Please fix your browser so it adds in easily it should I should be able to click it it shows up in my choices I make it my default and then it works fine it doesn't do that because you've added too much crap Extremely frustrating