Facebook share fell 4 per cent within hours after Facebook CEO Mark Zuckerberg announced the changes to make the social network more meaningful, The Sun reported.

Facebook is making changes to its News Feed feature that will allow users to see more updates from family and friends than posts from businesses, brands and media, Facebook CEO Mark Zuckerberg has announced.

A day after some reports suggested that Facebook was asking new users in India to enter their names as mentioned in their Aadhaar Card when they sign up for an account, the social media giant on Thursday clarified that it is not collecting Aadhaar data.

Facebook may soon start testing two features -- "red envelope" that would enable users send money to others from the platform, and a "breaking news" tag that publishers can use to make people aware of the latest happenings around them.

Soon after Facebook introduced a profile picture guard in India that will give users more control over who can download and share their pictures, several women users on Thursday started protecting their display photos.

Giving a glimpse of what is going on at its secret "Building 8" research group, Facebook has said it is working on a way to let people type with their brains -- at speeds faster than physical typing -- via a brain-computer interface.