can u add facebook login button of firebase in 1 hr teamviver

Yes i can make button of facebook login in your app I've over 4 years of experience developing mobile apps lets talk more about it Thanks :)

A Mobile Application Developer with more than 6 years of experience in Software Development, Application Maintenance & Support and Project Execution Knowledge in Android Studio, Eclipse, Material Design, Android SDK, Web Services, JSON, REST, PayPal Integration, Google Push Notification, Eclipse IDE,SQLite database, Activities, Services, Broadcast Receivers, UI Designing. Experience with third party libraries and APIs. Handled Android Terminal, Finger Print Option and External scanning application using mobile (Scanbuddy) We will ready to work in Database(MySQL or SQl Server) and also for API either .NET or Java or PHP. Please prefer me for this work. I am ready to start it.

I had already done this thing in ma project so can do this within hour. I have already use the firebase , facebook integration using firebase and will do that this with taking your less time.