Oh My Browser
Oh My Browser is a free browser extension that lets AI agents work inside an already signed-in browser.
What Oh My Browser is
Oh My Browser is a free browser extension that lets AI agents work inside an already signed-in browser. Agents can read pages, extract structured data, fill forms, click controls, and move through JavaScript-rendered pages and single-page applications. For debugging, they can inspect live page state, bounded network requests, runtime errors, and form diagnostics, then verify a change. Its MCP server is described as compatible with Claude Code, Cursor, Codex, Windsurf, and other MCP clients. The extension runs on Chrome-family browsers, including Chrome, Edge, Brave, and Arc; Firefox and Safari are not supported. Lite allows one concurrent tab without Site Memory, while the default edition supports up to eight tabs and includes Site Memory. The Free Tier costs nothing, with 50 calls per day resetting at 00:00 UTC. A Standard tier currently lists no fees and higher dashboard quotas, without stating exact limits. Browser session data remains local according to the privacy policy.
Good
- Free Tier costs nothing
- Agents can fill forms and navigate single-page apps
- MCP compatibility includes Claude Code and Cursor
- Default edition supports up to eight concurrent tabs
- Browser cookies and login state stay local
Watch out
- Firefox and Safari are not supported
- Lite allows only one concurrent tab
- Lite does not include Site Memory
- Free Tier allows 50 calls per day
Who it suits
It suits agent developers and power users who work in supported Chrome-family browsers. Lite is positioned for managed Chrome environments where unpacked extensions are blocked.
Verdict
Oh My Browser combines browser control, debugging inspection, and MCP connectivity in a Chrome-family extension. Check the browser support and tab limits before choosing an edition.
Plans and prices
From Oh My Browser's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free Tier | Free | 50 calls per day · resets at 00:00 UTC · No charge |
| Full | Free | developer-mode installation · debugger/CDP features · full network-response capture |
| Lite | Free | unlimited for personal users · core read/write features · Chrome Web Store distribution |
| Pro | Priced on request | team sharing · priority support · higher rate limits · waitlist |
| Standard tier | Priced on request | Higher quotas; exact quota not stated on the page · No fees currently; higher quotas are listed in the dashboard |
The facts
Each one read from Oh My Browser's own pages, with the date it was checked.
What it does
- Agent integrations
- Its MCP server is described as compatible with Claude Code, Cursor, Codex, Windsurf, and other MCP clients.checked 8 Oct 2026
- Authenticated sessions
- Existing Chrome sessions can be used with SSO, two-factor authentication, cookie-gated content and enterprise intranets without sharing credentials with the agent.checked 15 Oct 2026
- Chrome WebMCP requirement
- OMB says its extension bridge works without enabling Chrome's experimental WebMCP API.checked 15 Oct 2026
- Chrome Web Store compatibility
- The listing says the extension works with Chromium browsers including Edge, Brave, Arc, Vivaldi and Opera.checked 15 Oct 2026
- Compliance
- OMB says it follows China's PIPL and, where applicable, the EU GDPR.checked 15 Oct 2026
- Credential boundary
- Cookies, login state, passwords and browsing history remain in the local Chrome or Edge profile and are not uploaded to OMB servers.checked 15 Oct 2026
- Data handling
- The policy says active-tab content is forwarded to the AI client as a single-shot response and is not retained on OMB servers; query text is stored as a SHA hash by default.checked 8 Oct 2026
- Data hosting
- The privacy policy says service data is hosted in mainland China on Aliyun.checked 15 Oct 2026
- Debugging
- For software debugging, agents can inspect live page state, bounded network requests, runtime errors, and form diagnostics, then verify a fix.checked 8 Oct 2026
- Developer SDK
- Web developers can install the JavaScript/TypeScript package @getohmy/omb-web-diagnostics to expose bounded application diagnostics.checked 15 Oct 2026
- Diagnostics support
- The CLI provides omb version, omb status and omb doctor commands for checking and repairing connectivity.checked 15 Oct 2026
- Dynamic pages
- The product supports JavaScript-rendered pages, single-page applications and infinite scrolling.checked 15 Oct 2026
- Edition concurrency
- Lite supports one concurrent tab, while the full edition supports up to eight tabs.checked 15 Oct 2026
- Edition difference
- Lite omits Site Memory, while both editions provide reading, interaction, generic diagnostics and logged-in-session support.checked 15 Oct 2026
- Editions and limits
- Lite supports one concurrent tab and has no Site Memory, while the default edition supports up to eight concurrent tabs and Site Memory.checked 8 Oct 2026
- Element targeting
- OMB exposes an accessibility tree and DOM map, with CDP fallback for strict CSP sites.checked 15 Oct 2026
- Hosting and compliance
- The privacy policy says data is hosted in mainland China on Aliyun and that OMB complies with China's PIPL and, where applicable, the EU GDPR.checked 8 Oct 2026
- Installation
- The installer command is curl -fsSL https://api.omb.org.cn/install.sh | sh and it configures the CLI, agents and full extension.checked 15 Oct 2026
- Intended users
- The install page recommends the full edition for agent developers and power users, while Lite is positioned for managed Chrome environments where unpacked extensions are blocked.checked 8 Oct 2026
- Limit: Lite debugger gap
- The Lite store build does not include chrome.debugger, CDP attachment, webRequest header rewriting or anti-detection content scripts.checked 15 Oct 2026
- Limit: product scope
- The store listing says OMB does not provide a cloud agent, remote browser sessions, crawler service, automation-as-a-service platform, dedicated model routing or a chat sidebar.checked 15 Oct 2026
- Local session privacy
- The privacy policy says browser cookies, login state, passwords, and browsing history stay in the local browser and are not uploaded to OMB servers.checked 8 Oct 2026
Where it runs
- Browser actions
- Agents can click, type, scroll, navigate and extract information through the extension.checked 15 Oct 2026
- Browser compatibility
- The extension supports Chrome-family browsers, including Chrome, Edge, Brave, and Arc; Firefox and Safari are not supported.checked 8 Oct 2026
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