All about Prefs

Hi, I recently became the module owner of Prefs, and there are several peers. In the past it was an ill-maintained module, but that is no longer the case. I have been doing a bunch of work to improve Prefs. As part of this I wrote a document that describes how they currently work, and some of

Intent to remove Ambient Light and Proximity sensor APIs

I am suggesting the removal of both Ambient Light and Proximity Sensor APIs via a preference so we can ensure there is no adverse impact to the web with a quick mitigation if needed. If there are no issues with this, I plan to push the code early in the new year to account for the holiday