# LaunchFirefoxExtension

[**@openpolyfill/firefox-addon-playwright-harness**](/docs/api/reference)

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[@openpolyfill/firefox-addon-playwright-harness](/docs/api/reference/globals) / launchFirefoxExtension

# Function: launchFirefoxExtension()

> **launchFirefoxExtension**(`config`): `Promise`\<[`FirefoxLaunchResult`](/docs/api/reference/interfaces/FirefoxLaunchResult)\>

Defined in: [src/launch.ts:78](https://github.com/OpenPolyfill/FirefoxAddonPlaywrightHarness/blob/9532a852e3623332cfb2eacd964ebdb4045220e5/src/launch.ts#L78)

## Parameters

### config

[`FirefoxHarnessConfig`](/docs/api/reference/interfaces/FirefoxHarnessConfig)

## Returns

`Promise`\<[`FirefoxLaunchResult`](/docs/api/reference/interfaces/FirefoxLaunchResult)\>