Puppeteer: CDP support is required for this feature. The current browser does not support CDP.

A requested feature needs CDP but the current browser/protocol has no CDP bridge.

Error message

CDP support is required for this feature. The current browser does not support CDP.

How this error happens

Firefox/WebDriver BiDi does not supply Chrome’s CDP feature bridge. A CDP session request asks for a capability that connection does not have.

The snippets use the imported puppeteer instance and installed compatible browsers.

const browser = await puppeteer.launch({
    browser: "firefox",
    protocol: "webDriverBiDi",
});

const page = await browser.newPage();

await page.createCDPSession();

How to fix

Use Chrome/CDP if the task genuinely needs raw CDP commands.

const browser = await puppeteer.launch({
    browser: "chrome",
    protocol: "cdp",
});

try {
    const page = await browser.newPage();
    const session = await page.createCDPSession();

    await session.send(
        "Runtime.enable"
    );

    await session.detach();
} finally {
    await browser.close();
}

Things to keep in mind

A browser switch changes the engine being tested. If Firefox behavior is the goal, use supported public BiDi operations instead of substituting Chrome.

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