Comment 4 for bug 1188954

Catfish creates this file when you change the settings in the application. I may not have actually pushed my changes before, but they should be there now.

http://bazaar.launchpad.net/~catfish-search/catfish-search/trunk/revision/151

The file is created at ~/.config/catfish/catfish.rc and right now only stores the hidden files and sidebar settings.