Hello,
I like filler-roller, however its drag'n'drop to extract feature sometimes does not work as expected. It seems it is extracting while I do drag'n'drop and many times when I release the button of the mouse nothing happens. I open the archive, then usually selects the folder in the archive and move it to desktop, as I said many times nothing happens, I have to trick it like, select-drag-move a little a bit with mouse but still stay in the window of the file-roller and then wait-move the mouse to desktop-release the button. Many times I rather chose the extract button insted, but this is stepback.

Other information:
I had this problem with gentoo so I though this might be gentoo related, but I'm using Ubuntu and I experience the same behavior as well.