{
  "slug": "browser-tabs-supports-isolated-contexts-29a296385f31",
  "title": "browser_tabs supports isolated contexts",
  "tools": [
    "playwright-mcp"
  ],
  "tags": [
    "agent"
  ],
  "introduced_at": "2026-10-31T15:20:06.000Z",
  "announced_at": "2026-10-31T15:20:06.000Z",
  "effective_at": null,
  "date_basis": "source-publication",
  "status": "unknown",
  "how": {
    "incantation": "When opening tabs for multiple accounts, call `browser_tabs` with `action: \"new\"` and a distinct `isolatedContext` name for each account. Tabs with the same name share cookies and storage; different names isolate them.",
    "examples": [
      "browser_tabs({\"action\":\"new\",\"isolatedContext\":\"<account-context>\"})"
    ],
    "gotchas": [
      "Version: v0.0.84",
      "action (required): Operation to perform; use `new`.",
      "isolatedContext: Context name for the new tab; tabs with the same name share cookies and storage."
    ]
  },
  "why_it_matters": "Open tabs for multiple accounts in one browser while keeping their cookies and storage separate.",
  "sources": [
    "https://github.com/microsoft/playwright-mcp/releases/tag/v0.0.84",
    "https://github.com/microsoft/playwright-mcp"
  ],
  "rank": 0.98041,
  "review_state": "approved",
  "provenance": {
    "run_id": "daily-20261031-20",
    "verdict_id": "daily-20261031-20:daily-20261031-20-4ed16df91a2ae7c3-0:gate",
    "evidence_hash": "8105ef3df07afd3c61abbda7767913a1538413773f1aea513ea00d14ef83c867"
  }
}