So what browser is made for power users now? That did used to be Firefox - Firefox became so popular because it strongly appealed to power users, who then evan

So what browser is made for power users now? That did used to be Firefox - Firefox became so popular because it strongly appealed to power users, who then evangelized it to friends and family. Over the years, Mozilla has increasingly targeted the mass market. That's well and good, though I don't know how they can compete with being the default browser (Safari, IE, Edge, Chrome) or with massive advertising and heavy pushing on Google's homepage or in auto-installers like Chrome, no matter how good they make the browser. But what happens to power users now?