Firebase is Google. I don't know why they deserve different levels of trust. If Firebase has your permission to harvest your sync info, there is no reason to think this doesn't get copied right on over into googles 'track every click and movement' apparatus.
sofixa|5 years ago
Also, Firebase Cloud Messaging is the only way to have push notifications on Android.
Using either of their products ( outside of Firebase Analytics and maybe Firebase Auth) isn't tracking users and isn't harvesting user data. It's using tools to make apps, that's it.
Nextgrid|5 years ago
Google is a malicious actor as a result of their business model and has already demonstrated their willingness to breach the GDPR with the non-compliant tracking consent prompts they use on their services, so it isn't that far-fetched to believe they can also use data from other services in ways you don't expect, especially when they can have plausible deniability.
smitop|5 years ago
[1] https://firebase.google.com/terms/data-processing-terms#5.pr...