The features all 3rd custom builds lack at present

Because of some service reasons, Mozilla products’ some features depend on some Cloud API Key, without the API Key, some service will not work.

An example is The Google Maps Geolocation API, you can test it in link1 and link2. If your build did not add Google Maps Geolocation API Key, the sites will not give right results.

Another example is Firefox Hello import contacts service ( firefox34+ ), which depends on Google Oauth API, if your build did not add the API Key, the import service will fail.

So I try to add the API Key to my nightly test build, it seems the examples above work OK, and I want to add the features in my future editions.