i'd love to help you regarding your question. first of all, what kind of phone are using? an android, iOS phone?
please follow this step it might help you:
if you are using an android phone check the following:
-use packet data/data services (pls click)
-then select the access point name
-it should be myGLobe INET
-and enter this apn: http.globe.com.ph
after which try connecting to fb via your mobile browser and not with the fb app.