Website push notifications can be helpful. The way you're asked to enable those notifications? Not so much -- the constant requests can drive you up the wall when you're just trying to check the latest news. Mozilla is coming to your rescue. Its newly released Firefox 59 for the desktop gives you the option to block notification requests. You can also tell the browser to block requests to use your hardware or location, for that matter. You'll have to dig deep into the settings (it's under permissions) to turn these features off, but they should make your web surfing relatively hassle-free.
Source: Mozilla Blog, Release Notes