Facebook recently update added a new feature to its mobile app. The feature loads all links clicked on Facebook to open in the in-app browser as opposed to a browser installed on the phone. While this is faster, it seriously limits what you can do with the open page (for eg. sharing is limited). But fortunately this feature can be disabled.
To disable it, do the following:
- In the Facebook app, goto Menu > App Settings
- In General Settings, you will find the “Always open links with external browser” option. Tap it to Enable it.
- Now your facebook app should behave just the way it did before the update.