OS:
_Platform:_
Module RNFirebase requires main queue setup since it overrides constantsToExport but doesn't implement requiresMainQueueSetup. In a future release React Native will default to initializing all native modules on a background thread unless explicitly opted-out of.
Same for several other Firebase modules.

react-native info:
Environment:
OS: macOS Sierra 10.12.6
Node: 8.6.0
Yarn: 1.2.0
npm: 5.3.0
Watchman: 4.9.0
Xcode: Xcode 9.0 Build version 9A235
Android Studio: Not Found
Packages: (wanted => installed)
react: 16.0.0-beta.5 => 16.0.0-beta.5
react-native: 0.49.3 => 0.49.3
https://github.com/wix/react-native-navigation/pull/1983/files#diff-b8c48202d12fa78c4c377e5a3225c298
Thanks for flagging and with a PR to use as reference 馃憤 we'll sort for next patch release.
I've just fixed this, pending a release later today
Most helpful comment
I've just fixed this, pending a release later today