TBA - Evaluate Android Intent Referrers
Currently Fennec listens for the installation referrer com.android.vending.INSTALL_REFERRER. This is used for tracking installations (source of install, when it was installed, etc). We probably do not want this.
See mobile/android/base/java/org/mozilla/gecko/distribution/ReferrerReceiver.java and (proxied) network calls in mobile/android/base/java/org/mozilla/gecko/distribution/Distribution.java
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