-To help improve the [WebVR API](https://immersive-web.github.io/webvr/spec/1.1/) and the [Unity WebVR Assets](https://assetstore.unity.com/packages/templates/systems/webvr-assets-109152) package, each time a web page built using the [WebVR Assets](https://assetstore.unity.com/packages/templates/systems/webvr-assets-109152) is loaded, Mozilla automatically receives general-usage statistics and uncaught JavaScript errors encountered by end-users, using [Google Analytics](https://analytics.google.com/analytics/web/) and [Sentry](https://sentry.io), respectively. [The *complete list of collected data*](./TELEMETRY.MD#list-of-collected-data) includes metrics for counting the number of unique web-page sessions; time for web pages to load and time open; JavaScript error exceptions occurred on the page; the number of times a VR device is mounted and worn; number of times VR mode is enabled and time spent; and a random identifier.
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