Firefox

Yeah, I'm not too mad about this. It's a good idea, but without legal weight behind it, it ultimately failed. Ideally GDPR and similar regulations would provide something similar, so I can set my preference once and every site would be required to respect it. That would be much better that the current situation, which is that I am forced to navigate every asshole site's custom cookie notice. Each one's a little different, and some of them break certain browser configurations. It's a UX nightmare. This is probably by design — annoy users into submission. Because nobody in their right mind would ever click "allow" if it were not the easier choice.