[Launch options](https://cdpfleet.com/docs/options)

# `config`

Override individual fingerprint properties.

**Use it for:** Changing one or two properties of a generated persona, such as the core count, while Camoufox keeps everything else consistent.

**Browsers:** [Camoufox](https://cdpfleet.com/docs/browsers/camoufox#opt-config).

## Details

-   **Type:** `object`
-   **Default:** none
-   **Example:** `{"config":{"navigator.hardwareConcurrency":8,"navigator.maxTouchPoints":0}}`

A map of Camoufox fingerprint properties to values, e.g. `navigator.userAgent`, `navigator.hardwareConcurrency`, `navigator.maxTouchPoints`, `screen.width`, `timezone`, `webGl:vendor`. Your values win over generated ones. Use this — not client-side `newContext` options — to change the user agent.

Strictly validated: an unknown property (e.g. Chromium-only `navigator.deviceMemory`) or a wrong value type returns 400. Keep overrides consistent with `os` (for example, touch points stay 0 on a desktop OS).

## Used in

-   [Camoufox with exact fingerprint values](https://cdpfleet.com/docs/examples#camoufox-config)

All options: [launch options](https://cdpfleet.com/docs/options).

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Source: https://cdpfleet.com/docs/options/config · Markdown: https://cdpfleet.com/docs/options/config.md · All docs for AI tools: https://cdpfleet.com/llms.txt