What is Flock?
Flock is a web browser built on Mozilla’s Firefox codebase that specializes in providing social networking and Web 2.0 facilities built into its user interface.
Open "Package manager" from the Pardus start menu and type "flock" in the search space. Then install it. Once it's installed, you can launch Flock from start menu-->programs-->internet-->flock
For more information and support for this software, please visit the project's page at http://flock.com/