FDD cannot to be unmounted

[FilipGH]

Binary package hint: firefox-3.0

After mounting, the FDD cannot to be unmouted, and give this message:
"Unable to unmount "Floppy Drive":

umount: /media/floppy0: device is busy.
        (In some cases useful info about processes that use
         the device is found by lsof(8) or fuser(1))"
Previously there wasn't such problem, but after that at one time it began to do so.

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
NonfreeKernelModules: nvidia
Package: firefox 3.0.14+build2+nobinonly-0ubuntu0.9.04.1
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: firefox-3.0
Uname: Linux 2.6.28-15-generic i686

[Micah Gersten (micahg)]

Removing the Firefox association, not a Firefox issue.

Thank you for reporting this to Ubuntu. Did you have an open file or directory from the floppy?

[Pedro Villavicencio (pedro)]

We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. Please reopen it if you can give us the missing information, and don't hesitate to submit bug reports in the future. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to New. Thanks again!.