Comment 47 for bug 133133

racerraul, what happens when you double click on the file in the Download Manager list instead of selecting "Open Containing Folder"? Do you get it to open with the associated program, or do you also get it opened with Thunar?

In my case, when I tried opening the containing folder the first time,
- Firefox asked me to select the program to use, naturally I'd select /usr/bin/nautilus for my GNOME environment.
- I also marked the checkbox "Remember my choice for file links".
Then it will open Nautilus for any file I right-clicked and clicked "Open Containing Folder". But the side effect is, for all files I try to open (either by double clicking, or right click and select "Open", it will still try to open with Nautilus, coming up with error "the location is not a folder".

I wonder why opening a folder is treated as opening a file link in Firefox?