Playwright MCP v0.0.78
Playwright MCP v0.0.78 adds a targeted browser find tool, reduces accessibility snapshot verbosity to save tokens, introduces mobile device emulation flags, and fixes several navigation and screenshot bugs.
Why this signal matters
Playwright MCP version 0.0.78 brings new features and stability fixes to the browser automation agent tooling. A new browser find tool allows searching accessibility snapshots by text or regex, returning matching nodes with surrounding context snippets instead of full snapshots to reduce context costs. General accessibility snapshots were distilled to lower verbosity and token usage. For device configuration, --mobile and --device CLI options enable mobile emulation. browser navigate now reports non-2xx HTTP navigation statuses and avoids crashes when navigation closes the last tab. Other fixes include enabling the Chromium sandbox by default, awaiting page initialization before taking screenshots upon opening, properly saving videos across multiple tabs, passing noDefaults for CDP connections, closing isolated HTTP contexts upon disconnect, and syncing the client event stream before sending server-to-client requests.
Actionable summary
Playwright MCP v0.0.78 introduces the browser find tool for regex/text search over accessibility snapshots, compresses snapshot output to save tokens, surfaces non-2xx status codes in browser navigate , adds CLI flags --mobile and --device , and fixes sandbox and tab handling crashes.
- Agent usefulness
- 62/100
- Confidence
- 96%
- Canonical data
- JSON + Markdown
What builders should check
- Adopt the browser find tool in place of full snapshot requests when locating specific elements to minimize token consumption.
- Utilize --mobile or --device CLI flags if mobile browser emulation is needed.
- Handle non-2xx HTTP status codes now explicitly returned by the browser navigate tool.