If something dont work on firefox i just dont use it, i am doing that for some time and it´s been great to me, others should do the same and tell the product owner that, so them make more acessible products from now on
Babel (specifically, babel-preset-env, which I assume you're referring to) only ensures that your code's syntax can run within a given browser. It doesn't make sure all the web APIs and browser features you take advantage of are compatible, or that they produce the same result.