Inside Java interfaces, all fields are |public static final| and all classes are |public static| and all interfaces are |public|. There are a lot of places where we manually specify (some of) these modifiers, which may be confusing as you may e.g. be induced to think that removing that modifier will make the field non-public or non-final. There are actual example of this where we mark some fields as |/* package */| like they were package protected but really they are public e.g. [0]. I say we remove all of these redundant modifiers to avoid ambiguity. [0]: https://searchfox.org/mozilla-central/rev/d35199ef15ffa57d190886e20d5df6471faf0870/mobile/android/geckoview/src/main/java/org/mozilla/geckoview/GeckoSession.java#4279