Instead of Thunar, Nautilus now opens when i choose "Open Containing Folder" in Download window of Firefox.
This I noticed after installing gnome-systems-tool to be able to do admin tasks from within gui.
I can't seem to find any entry in "Firefox, Preferences, Applications, Action" that might change this behaviour.
How do I get this to default back to Thunar?
UPDATE:
It appears that Firefox (currently 16.0.1 in Mint 13 XFCE) has Nautilus or equivalent gnome apps hard coded for its file manager. Some googling indicates that this is an old issue.
Answer 1 in http://www.tinyguru.com/superuser/qid454568.html has the workaround and, for me, fixes the (annoying) Firefox behaviour that has been carried over to Mint 13 XFCE. I have been using Mint 9 Fluxbox until now and it does not have this issue - another proof of the quality of Mint 9 Fluxbox (and why I'm hoping that it continues beyond 9). For Mint 13 XFCE, oversight?



