Download DupFinder 3.0.1 Beta
You can download the latest version of DupFinder 3.0.1 beta which works for new ubuntu versions:
Duplicate file finder and cleaner for your computer.
Works for Ubuntu 12.04 64-bit • Debian 8 64-bit.
You may use this product only in accordance with the following license terms: http://dupfinder.com/license
You must not use this software if you do not agree with the license terms.
Unzip the file and open DupFinder.