5 Ways to Automate Your Browser Without Selenium: CDP, Extensions, and MCP in 2026

5 Ways to Automate Your Browser Without Selenium: CDP, Extensions, and MCP in 2026 Selenium was the right tool for a decade. Today it is the wrong default. If you are still spinning up WebDriver sessions to automate Chrome, you are fighting a protocol translation layer that converts your commands into DevTools Protocol calls anyway -- adding latency, complexity, and a massive dependency tree for no reason. The browser automation landscape in 2026 looks nothing like 2020. Chrome DevTools Protocol has matured into a first-class automation API. Playwright has absorbed MCP (Model Context Protocol) as a bridge layer. Chrome 148 shipped built-in WebMCP support. And extensions have become viable automation relays that work in contexts where external tools cannot. This article covers five concrete approaches to browser automation that are faster, lighter, and more capable than Selenium. Each one includes working TypeScript code you can copy into a project today. By the end, you will know exact