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Playwright MCP v0.0.73 fixes a critical gap where extension channels and executable paths could not be resolved from CI/CD environment variables.

If you run Playwright MCP in Docker, Kubernetes, or ephemeral CI workers, this release removes a class of environment-specific debugging that typically consumes 15–30 minutes per incident.

What changed

Two interconnected bug fixes:

Extension channel and executablePath now resolve from CLI flags and environment variables ( #40572 )

--browser channel flags now propagate on --extension paths ( #40567 )

Combined, these changes mean your Playwright MCP setup can now be fully environment-driven.

The pattern

export PLAYWRIGHT_BROWSERS_CHANNEL = chromium export PLAYWRIGHT_EXTENSION_PATH = /path/to/browser-extension npx playwright test

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The resolution hierarchy is now:

CLI flags (highest priority)

Environment variables

Config file…