In Kubuntu 9.10 using Firefox the command moz-icon://.ext, where .ext represents file extension does not work. This command should return an icon representing this file type.
In Kubuntu 9.04 this feature works.
After some investigation I found mimetype icons in /usr/share/icons/hicolor/16x16/ on my jaunty installation that are missing in same directory in karmic. I think Firefox loads icons from that location.
This bug is present in Firefox provided by Ubuntu and in Firefox downloaded from mozilla.com, so I think it's not Firefox specific bug.
In Kubuntu 9.10 using Firefox the command moz-icon://.ext, where .ext represents file extension does not work. This command should return an icon representing this file type. icons/hicolor/ 16x16/ on my jaunty installation that are missing in same directory in karmic. I think Firefox loads icons from that location.
In Kubuntu 9.04 this feature works.
After some investigation I found mimetype icons in /usr/share/
This bug is present in Firefox provided by Ubuntu and in Firefox downloaded from mozilla.com, so I think it's not Firefox specific bug.