September 19, 2026
ChatGPT Works with Familiar Extensions: OpenAI Enables Them in Its Browser on macOS and Windows
On September 6, 2026, ChatGPT's built-in browser on macOS and Windows began running Chrome extensions. It can be opened from the toolbar or with Cmd+Shift+B on macOS and Ctrl+Shift+B on Windows. For an existing Chrome profile, sessions, tabs, and extensions, OpenAI recommends the Codex extension for Chrome.
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DAILY AI REVIEW 🗞 — September 19 XAI 🔥: - Grok Voice Transcribe 2.0 is now available in the Grok Voice API. $0.10/hr in batch mode, $0.20/hr in streaming mode. META 🔥: - Muse connectors are available to developers. You provide the API, while Muse provides the agent, browser, and user context. - Muse is now available in Canada. - A dedicated Muse Mail tab is in development. OPENAI 🔥: - The ChatGPT desktop browser now runs Chrome extensions. - Most plugins can connect multiple accounts in one chat. Developers can add a profile tool so ChatGPT can name the connections. ANTHROPIC 🔥: - Claude Code 2.1.277 reads AGENTS.md when no CLAUDE.md file is present. The toggle is in /config. - Anthropic is partnering with Accenture on embedded frontier AI evaluation. GOOGLE 🔥: - Google Pics is now generally available in Workspace: generate, refine images, and create them together. - Dreambeans is now generally available in Labs: a daily personalized selection of stories. MISTRAL 🔥: - Mistral investigated the leak claim and says its systems were not compromised. * I used Grok to prepare this brief, manually selected the news, and edited the result. ** This daily brief also arrives as a daily email; you can subscribe in the blog.
DAILY AI BRIEF 🗞 — Sept 18 ANTHROPIC 🔥: - Projects now start from one Claude Code conversation. Claude spins parallel cloud threads, keeps shared memory, and surfaces an Overview panel. XAI 🔥: - Grok Bot voice is live. Desktop and mobile, rolling out over the next couple of days. META 🔥: - Muse for Mac is out, US only. Computer use across apps, files, calendar, notes, and messages. You pick what it can access. PERPLEXITY 🔥: - Effort selector is live in Computer on web. Presets pair the orchestrator model with reasoning depth. Mobile and desktop next. OPENAI 🔥: - Astra for Law is out: GPT-6 Astra plus a Legal Search Index over 230M+ URLs. Trusted Access first, API soon. - ChatGPT in Word hits all plans including Free, with usage limits. Business and Enterprise get a two-week GPT-5.6 Sol preview. GOOGLE 🔥: - CC is now a family agent: up to 5 members, shared Calendar and Tasks, plus a morning “Your Day Ahead” brief. Waitlist, US 18+. ALIBABA 🔥: - Qwen3.8-Omni-Flash is out. First omni-modal agent model, 1M context, native audio-video plus tools. Video input cost down ~89% vs 3.5-Omni-Plus. * Used Grok to compose this brief, cherry-picking the news and doing some post-editing. ** This daily brief also arrives in the daily email format; subscribe on the blog.
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Previously, ChatGPT's built-in browser could not run Chrome extensions and existed separately from the familiar profile. Now ChatGPT runs these extensions on macOS and Windows, while OpenAI points to the Codex extension for an existing profile, sessions, and tabs.
Opening it remains quick. The browser opens from the toolbar or with Cmd+Shift+B on macOS and Ctrl+Shift+B on Windows.
For an existing Chrome profile, OpenAI points to the Codex extension as the next path.
