This project hosts some Intent Firewall rules for my own use.
Intent Firewall is a feature that was introduced in Android 4.4.2. It use xml based rules to filter intent. For more information about Intent Firewall, refer to https://web.archive.org/web/20170628113521/http://www.cis.syr.edu/~wedu/android/IntentFirewall/
Greenify has been using this feature since v3.0. Refer to https://greenify.github.io/