The basenames of files are split by dots and then starting from the end each segment is compared to find a sort order. Example: bar.tar.bz2 foo.tar.bz2 a.bar.gz x.tar.gz z.tar.gz test.tex A heuristic determines what extension segments are part of the extension. There is probably no perfect solution but there are much less false positives. As a result the sorting is more intuitive and the displayed column in the list view is better readable and displays extensions more accurately. In addition a bug related to the default sort criteria in the preferences has been fixed.