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chrome-devtools-mcp-v1.2.0

Skyvern-AI/skyvernchrome-devtools-mcp-v1.2.0Jun 8, 2026by browser-automation-bot

AI Summary

This release introduces experimental TOON support, memory debugging tools, and extension service worker logs, along with performance optimizations and validation improvements.

Key Highlights

  • Experimental TOON support for structured content
  • Memory debugging tools
  • Extension service worker logs
  • Close heap snapshot MCP tool
  • Performance improvements (concurrent lighthouse saves)

New Features

  • Experimental TOON support
  • Memory debugging tools
  • Extension service worker logs
  • Close heap snapshot tool
  • Allowed/Blocked URL pattern options

Full Release Notes

## [1.2.0](https://github.com/ChromeDevTools/chrome-devtools-mcp/compare/chrome-devtools-mcp-v1.1.1...chrome-devtools-mcp-v1.2.0) (2026-06-08)


### 🎉 Features

* add experimental TOON support for structured content output ([#2042](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2042)) ([aa33bff](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/aa33bff19fcbf87949eec152c4b49d74e0a9330d))
* Adds close_heapsnapshot MCP tool ([#2174](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2174)) ([8713b93](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/8713b93b41ce301acf0ebc555c9a1b25d29bc526))
* Handle multiple providers of third-party developer tools ([#2168](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2168)) ([30d59a7](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/30d59a78727c31ec9d70d2bd6d9310e78f1888b3))
* implement extension service worker logs ([#1915](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/1915)) ([29e3898](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/29e389848fd0cae1116620d44fbce508b4404137))
* memory debugging tools ([#2169](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2169)) ([0217397](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/02173972574241049885171c5a6fc0ba998a20cc))
* support allowedUrlPattern & blockedUrlPattern Options ([#2037](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2037)) ([02b4492](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/02b4492ca605755f67f016ee1de98aa1f506168c))


### 🛠️ Fixes

* Cursor plugin homepage setting field ([#2173](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2173)) ([8971890](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/89718901174be7c0c58a1a2b29281ab2f053cd53))


### 📄 Documentation

* **skill:** guide agent to prompt for --categoryExtensions  ([#2189](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2189)) ([8b458f7](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/8b458f7ad194b52305b831d5bfd6c0b6f5a53376))


### ⚡ Performance

* lighthouse file saves to run concurrently ([#2178](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2178)) ([f90f863](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/f90f863d4b9d643ab880c9dc8cdd78b6c88ae38d))


### 🏗️ Refactor

* change type of logger ([#2165](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2165)) ([bf0574d](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/bf0574da8ce0986beb5dd2f026a2332a7e63b791))
* use validate files on the tool level ([#2152](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2152)) ([2e039c0](https://github.com/ChromeDevTools/chrome-devtools-mcp/commit/2e039c09e1a273581d9b51081a0feb8a57791947)), closes [#2150](https://github.com/ChromeDevTools/chrome-devtools-mcp/issues/2150)