Fossil Window has lower priority than other windows in Maya.

[kungfoojoh]

It keeps getting covered up by outliner, attrib editor, Hypershade, and even Maya itself

[kungfoojoh]

adding this in main.py fix this issue:

self.setWindowFlags(Qt.QtCore.Qt.Tool)

[patcorwin]

I added this line. It does nothing for me on windows but hopefully it works for you.