[android-components](../../index.md) / [mozilla.components.feature.session](../index.md) / [WindowFeature](index.md) / [start](./start.md)

# start

`fun start(): `[`Unit`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) [(source)](https://github.com/mozilla-mobile/android-components/blob/master/components/feature/session/src/main/java/mozilla/components/feature/session/WindowFeature.kt#L39)

Overrides [LifecycleAwareFeature.start](../../mozilla.components.support.base.feature/-lifecycle-aware-feature/start.md)

Starts the feature and a observer to listen for window requests.

