In the early 2010s, "Facebook.jar" for 240x320 screens was the lifeline for millions of users on Java-enabled "feature phones" (like the Nokia S40 series or Samsung Star)
.jar (and possibly .jad) to your phone via Bluetooth, USB (mass storage), or microSD..jar file → select Install (or Application → Install).Facebookjar 240x320 new refers to a specific version of the Facebook Java application, designed for mobile phones with limited screen resolution and processing power. The "jar" in Facebookjar stands for Java Archive, which is a file format used to package Java classes and other files for distribution. facebookjar 240x320 new