In KDE 4, Konqueror has been replaced for the most part by Dolphin for all folder/directory viewing. However, by default Firefox will end up opening Konqueror if you right click on a downloaded item and select “Open Containing Folder”. It would be nice if Firefox would open the containing folder for downloads in Dolphin. There is a simple way of achieving this, and no command line work is required!
First open up Dolphin, and right click in some folder white space, click on “Properties” in the pop up menu.
Then, in the properties dialog that just opened, click on the little wrench to the far right of the “Type: folder” text.
Another dialog should open, this time it is the “Edit File Type inode/directory” dialog. You’ll see there are two applications set for the directory file type. Even though Dolphin is set to the top for order, Firefox ends up opening Konqueror. To fix this we want to remove Konqueror from this list.
Select Konqueror, and press the “Remove” button.
Now press “OK”. Firefox should now open directories in Dolphin rather than Konqueror when using “Open Containing Folder”.
[end of transmission, stay tuned]