You are downloading the FB Forever XAP file v2.0.0.0 for Windows Phone. FB Forever is a free Social App: Enjoy the full power of Facebook with Facebook Forever. Full support for photo galleries, news feed, chat, messaging, events and more! Facebook. You can now download the offline XAP package file to install & try it.
Download Locations for FB Forever 2.0.0.0 XAP file
Package File
Please Click Here > to retrieve available package files for FB Forever.
Please be aware that the FB Forever XAP file you are to download is hosted on the Microsoft Store CDN server. You can read more about FB Forever or get it on Microsoft Store.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline FB Forever XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.