1) Open Mozilla Firefox
2) Click on Tools >> Options >> Advanced >> Settings….
3) Now click on Manual proxy Configuration >> HTTP Proxy
4) Paste 118.98.35.251 or 119.252.160.34 in HTTP Proxy
5) Paste 8080 in Port.
6) Click OK and OK
7) Now open your Facebook account >> Account Setting
8) Scroll down and change the language from English (US) to Bahasa Indonesia
9) Now remove your Last name easily and save it.
10) After completing all above steps select your system proxy and chance your Facebook language back to English (US)