READ STEP BY STEP IF U DO ANY MISTAKE COMMENT BELOW AND ASK
this trick is working for Mozilla Firefox so try it on Mozilla.
Firstly Change your Browser Proxy Manually use Indonesia proxy
Then Save Your Settings.
Now Open your Facebook Account Name Settings.
Change your language from English (us) to Bahasa Indonesia
Then Simply remove Your Last Name And Save it.
Now Your Facebook Account is only with First Name Without Last Name.
After Completing all steps remove Manual Proxy and select use system proxy settings and change change your language back to English (us)
Important Note:- First Open your Facebook account settings then change proxy because sometime after changing proxy their will be error in log in account