sudo aptitude remove -f flashplugin-nonfree
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Reading extended state information      
Initializing package states... Done
The following packages will be REMOVED:
  flashplugin-nonfree nspluginwrapper{u} 
0 packages upgraded, 0 newly installed, 2 to remove and 56 not upgraded.
Need to get 0B of archives. After unpacking 729kB will be freed.
Do you want to continue? [Y/n/?] y
Writing extended state information... Done
dpkg: error processing flashplugin-nonfree (--remove):
 Package is in a very bad inconsistent state - you should
 reinstall it before attempting a removal.