[android-components](../../index.md) / [mozilla.components.concept.engine.webextension](../index.md) / [WebExtension](index.md) / [id](./id.md)

# id

`val id: `[`String`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) [(source)](https://github.com/mozilla-mobile/android-components/blob/master/components/concept/engine/src/main/java/mozilla/components/concept/engine/webextension/WebExtension.kt#L19)

the unique ID of this extension.

### Property

`id` - the unique ID of this extension.