12405 train running status: What is the user-agent string added

What is the user-agent string added when we open facebook app from an android mobile. I want to detect facebook app from android OS using user-agent string, is that achievable. Are there unique user- 创建帐户既免费又简单。 探索成千上万款游戏，与数百万新朋友一起畅玩吧！ 了解更多关于 Steam 的信息 Home Discovery Queue Wishlist Points Shop News Stats COMMUNITY Home Discussions Workshop Market Broadcasts About SUPPORT Install Steam login | language The Facebook SDK for Unity gets the wrong key hash. It gets the key from "C:\Users\"your user".android\debug.keystore" and, in a perfect world, it should get it from the keystore you created in your project.