Wap Facebook Chat.jar -

Because smartphones were not yet ubiquitous, developers created third-party Java applications to fill the void left by Facebook. Users would search for "facebook chat.jar," download the file, and install it on their device to bypass the clunky WAP browser and get a more streamlined chat experience.

, or unofficial Facebook Chat apps that used the WAP protocol to compress data. The "Jar" Magic : You would download the facebook_chat.jar wap facebook chat.jar

A typical .jar file was between 100 KB and 400 KB. Compare that to a modern Facebook app which eats up 500 MB. Running Facebook Chat via WAP used kilobytes per session, not megabytes. For users paying per megabyte, this was essential. Because smartphones were not yet ubiquitous