On Wed, Mar 09, 2011 at 05:11:55PM -0800,
jdnewmil@gmail.com wrote:
> That message indicates that a lock file is still present in a
> configuration directory in your home directory. I don't use
> Iceweasel, so I leave it to you to figure out which directory (I
> would guess .iceweasel) and file are involved, and delete the file.
It's .mozilla/firefox/*/.parentlock