Open your phone's native File Manager, navigate to the .jar file, and press the center selection key to install it.

Designed perfectly for 240x320 screens, preventing text from appearing too large or cut off.

Facebook Jar 240x320 is a specially designed mobile interface that allows users to access Facebook on their mobile devices with ease. The interface is optimized for mobile devices with a screen resolution of 240x320 pixels, providing a seamless and intuitive experience.

To help you find exactly what you need for your device, tell me: