Automatic connection to existing Chrome session

[zenobia-gawlikowska]

Is your feature request related to a problem? Please describe.
As a user, I want to be able to connect to an existing Chrome session in an opened browser with zero configuration work.

Describe the solution you'd like
I would like to issue a command to the agent, such as navigate to http://localhost and the tooling would take over the open session. A security confirmation prompt is of course necessary.

Describe alternatives you've considered
This already works quite well with Playwright MCP. I have tried to configure it using browserUrl following this description: https://github.com/chromeDevTools/chrome-devtools-mcp/#configuration
However, I could not figure out how to connect to my opened session. I would appreciate at least a step by step description how to do it. Ideally without maintaining two browser windows just to cater for this process.

Additional context
Opening a new window requires repeated login and the session details are lost each time. The browser opened by the MCP tool does not have saved login information in the session or in the user settings. This is cumbersome if you are working on an authenticated app. I would like to be able to hop on and off to this automated instrumentation as needed. Sometimes. it's easier to prompt the browser and sometimes it's faster to do it manually. I want to have the freedom to switch as needed within one session.

[natorion]

Thanks for the feature request. We are right now evaluating how a good solution would look like. There are a few dimensions to consider (usability, security, privacy, ...).

[adam-p]

Another shortcoming with the current browser window is that it doesn't allow for loading unpacked extensions. So I can't use it at all for working with my WebExtension, which is unfortunate.

I also tried unsuccessfully to get --browserUrl working.

[iamouyang21]

I hope it's the same as Browser MCP.

[Bre77]

Chrome devtools mcp is the first time I have ever used the automated chrome browser feature, but I cannot authenticate to my application in this profile due to hCapture, so being able to use my existing user profile would be great.

[Deastrom]

I could see this being similar to playwright mcp where the user installs an extension and the mcp cli takes a --extension argument

[immorBen]

The current use is very weird.. I somehow (messed with agent auto solutions) successfully use this with user profiles with some accounts logged in, even without a debugging port… but I cannot replicate and failed many many times on another machine….come on, just a guide ^^

[dangayle]

I haven't used it, but isn't that what the --browserUrl setting is for?