[android-components](../../index.md) / [mozilla.components.browser.engine.gecko](../index.md) / [GeckoEngine](index.md) / [installWebExtension](./install-web-extension.md)

# installWebExtension

`fun installWebExtension(ext: `[`WebExtension`](../../mozilla.components.concept.engine.webextension/-web-extension/index.md)`, onSuccess: (`[`WebExtension`](../../mozilla.components.concept.engine.webextension/-web-extension/index.md)`) -> `[`Unit`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html)`, onError: (`[`WebExtension`](../../mozilla.components.concept.engine.webextension/-web-extension/index.md)`, `[`Throwable`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-throwable/index.html)`) -> `[`Unit`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html)`): `[`Unit`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) [(source)](https://github.com/mozilla-mobile/android-components/blob/master/components/browser/engine-gecko-nightly/src/main/java/mozilla/components/browser/engine/gecko/GeckoEngine.kt#L69)

Overrides [Engine.installWebExtension](../../mozilla.components.concept.engine/-engine/install-web-extension.md)

See [Engine.installWebExtension](../../mozilla.components.concept.engine/-engine/install-web-extension.md).

