For many the Facebook Application experience is garbage. It has too much going on "ie auto play videos as of late" and lots of other things that tend to eat up your battery, and overall bog down your device. It really takes a fast phone for the Facebook to operate smoothly. Anyone with a device that has any age whatsoever will more than likely have a poor, slow, experience with the Facebook app. If you need to know everything going on in your friends life, and you need to know now more than likely you skip the app and you view Facebook on the web were it operates using much fewer resources.
The only issue with simply using facebook on your browser is the fact that you have to launch the browser, navigate, to facebook, possibly sign in depending on how long it has been since your last session. There is now a better option thanks to developer "cixty". His new "Facebook Browser" app takes the webview Facebook experience and crams it into an application. The app gives you instant access to your account and requires no other browsers to work. Everything is contained within the app. This app is free and can be downloaded at the source link below.
Via XDA