The new designs and features for its apps are a direct response to widespread criticism of how the firm protects user data.
Mr Zuckerberg said the company plans to put privacy first.
He acknowledged that there was much to do to rebuild trust.
In a speech to developers, Mr Zuckerberg described the firm's new focus on privacy as "a major shift" in how the company is run.
Some of the more visible changes to those who use the firm's products will include: