[android-components](../../index.md) / [mozilla.components.browser.session.tab](../index.md) / [CustomTabConfig](index.md) / [actionButtonConfig](./action-button-config.md)

# actionButtonConfig

`val actionButtonConfig: `[`CustomTabActionButtonConfig`](../-custom-tab-action-button-config/index.md)`?` [(source)](https://github.com/mozilla-mobile/android-components/blob/master/components/browser/session/src/main/java/mozilla/components/browser/session/tab/CustomTabConfig.kt#L31)

Custom action button on the toolbar.

### Property

`actionButtonConfig` - Custom action button on the toolbar.