From Fedora Project Wiki

Gwibber

Gwibber is a microblogging client, providing a Read/Write view into common platforms such as Twitter, Identi.ca, and Facebook.

Privacy Policy

Any data that you provide Gwibber is stored locally on your computer and not transmitted to Fedora in any form or fashion. Your authentication credentials are transmitted to the corresponding services (e.g. Facebook), and are only used to provide a view into any data provided by those services. Data provided by those services is delivered directly to the Gwibber client application on your computer, and is not stored in any form or fashion by Fedora.