Which Chrome your agents drive (default Chrome per computer)

  • Desktop, mobile and web
  • All plans
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What it does

With AgentsRoom and Chrome running on several computers of the same account, every Chrome profile that has the extension is visible to every desktop. When an agent calls a chrome_* tool without choosing a browser, AgentsRoom picks one for it: the profile you ticked Default on this computer, else the only Chrome running on this computer, else the only Chrome online. Only when that is still ambiguous does the agent ask which one to use.

Where to find it

Status bar > Chrome chip > popover > Your Chrome profiles. Each row shows the profile name, This computer when that Chrome runs on the same computer as this desktop (the OS name otherwise), and a Default checkbox.

How to use it

  1. Open the Chrome popover on the computer your agents run on.
  2. Tick Default on the profile they should drive. One profile at most: ticking another one moves the default, clicking the ticked one clears it.
  3. Agents started or not, the next chrome_* call of an agent that has not chosen a Chrome uses it. An agent that already chose one with chrome_select_browser keeps its choice.

Naming: a profile the user never renamed is called after its computer ("Chrome · Mac Mini") as soon as the desktop of that computer sees it; before that it reads "Chrome · macOS". A name typed in the extension popup always wins.

Settings

  • Default checkbox (status-bar Chrome popover > Your Chrome profiles): machine-local, stored in ~/.agentsroom/chrome-default.json. Each computer keeps its own default, it does not follow the account. Off (none ticked) by default.

Agent tools (MCP)

  • chrome_list_browsers: each browser is tagged on this computer and this computer's default when they apply.
  • chrome_select_browser with makeDefault: true: drive that Chrome AND tick it as this computer's default (only when the user asks for it).

Providers

All providers, no difference: the choice is made by the desktop, not by the agent CLI.

Mobile

Not on the mobile companion: the phone lists no Chrome profile.

Limits

  • "This computer" needs the extension to reach the desktop on the local loopback (the same link as "Send page to agent"). Without it the profile still works, it is just not recognised as local, and the default checkbox still applies.
  • One Chrome profile = one browser: to expose two accounts, run two profiles with the extension signed in to the same AgentsRoom account in both.
  • A default that is offline is skipped: the next rule applies.

Common questions

  • I have several computers with AgentsRoom and Chrome: which Chrome do my agents drive? The one ticked Default on the computer the agent runs on. With none ticked, the Chrome of that same computer, when it is the only one there.
  • Two Chrome profiles on the same computer, which one is used? Tick Default on one of them, otherwise the agent lists them and asks.
  • Can two agents drive two different accounts at once? Yes: two Chrome profiles, each with the extension, each named; each agent selects its own with chrome_select_browser.
  • Why is my Chrome called "Chrome · macOS"? The desktop of that computer has not seen it yet, or the extension cannot reach it locally. Rename it in the extension popup, Browser tab, Browser name.

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