Overview

• Claude for Chrome launches as a controlled Chrome extension limited to 1,000 Max subscribers, with a waitlist for additional testers.
• The agent runs in a side panel that keeps page context and can view websites, click buttons, and complete forms when granted permission.
• Anthropic reports red‑team prompt‑injection success fell from 23.6% without mitigations to 11.2% with new safeguards, and from 35.7% to 0% on four browser‑specific attack types.
• Built‑in protections include site‑level permissions, user confirmations for high‑risk actions, and default blocks on categories such as financial services, adult content, and pirated sites.
• The preview positions Anthropic in a fast‑moving browser‑agent contest with Perplexity’s Comet, reported OpenAI browser efforts, and Google’s Gemini integrations; the Max plan is reported to cost between $100 and $200 per month.