T3rnel Browser Connects AI Agents to Your Real Browser with Human Oversight

Summary

T3rnel Browser’s version 1.2.0 provides 102 browser tools and connects to MCP clients including Claude Code, Cursor, VS Code, Windsurf, Codex, Grok Build and Kimi Code/Desktop. Its capabilities include inspecting and copying CSS, capturing full-page screenshots with sticky-header and lazy-loading support, viewing Markdown, auditing pages and links, debugging React applications, filling forms, clearing cache, and sampling colors. It can record and replay browser flows and export maintainable tests for CI. The extension is designed to operate inside the browser profile a user is already signed into, without a separate automation browser, re-authentication, or automation flags. Its safety controls redact credentials before they reach the model, pause actions that change pages for human approval, and provide a timeline that can be scrubbed backward when a run fails. It also includes an encrypted on-device identity vault for per-site credentials. Chrome, Brave, Edge, Opera and Chromium use the same store package, while Firefox is only partly supported. The product has a free tier and a $29.99 one-time Pro purchase covering three activations, with no subscription. The author says the product is focused on the human-control layer rather than competing with free browser automation tools on price.