codeceptjs/docs/plugins/browser.md

Supercharged End 2 End Testing Framework for NodeJS

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title: browser
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## browser

Overrides browser helper config from the command line. Works for all browser helpers
(Playwright, Puppeteer, WebDriver, Appium) without touching `codecept.conf`.

Enable it via `-p` option with one or more colon-chained args:

    npx codeceptjs run -p browser:show
    npx codeceptjs run -p browser:hide
    npx codeceptjs run -p browser:browser=firefox
    npx codeceptjs run -p browser:windowSize=1024x768:video=false
    npx codeceptjs run -p browser:hide:browser=webkit:windowSize=800x600

#### Args

*   **show** — force visible browser
*   **hide** — force headless (also injects `--headless` into WebDriver chrome/firefox capability args)
*   **`<key>=<value>`** — set `helpers.<eachBrowserHelper>.<key> = <value>`. Three keys
    get per-helper translation via `setBrowserConfig`:
    *   `browser=<name>` — Puppeteer receives `product`, Playwright receives `browser`
    *   `windowSize=WxH` — also adds `--window-size=W,H` chromium/chrome args
    *   `show=true|false` — toggles `show` on Playwright/Puppeteer; injects/strips
        `--headless` in WebDriver chrome/firefox capability args

Values stay as strings. `true` / `false` are coerced to booleans.

Requires `@codeceptjs/configure` to be installed; if missing, the plugin
logs a hint and skips the override.

### Parameters

*   `config`