I've fixed this on my local machine with
$sudo mkdir -p /usr/lib/midbrowser/plugins/
$sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
Need to get 0B of archives.
After unpacking 0B of additional disk space will be used.
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Setting up flashplugin-nonfree (9.0.48.0.0ubuntu9) ...
Installing from local file /var/cache/flashplugin-nonfree/install_flash_player_9_linux.tar.gz
Flash Plugin installed.
I've fixed this on my local machine with midbrowser/ plugins/
$sudo mkdir -p /usr/lib/
$sudo apt-get upgrade flashplugin- nonfree/ install_ flash_player_ 9_linux. tar.gz
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
Need to get 0B of archives.
After unpacking 0B of additional disk space will be used.
Do you want to continue [Y/n]?
Setting up flashplugin-nonfree (9.0.48.0.0ubuntu9) ...
Installing from local file /var/cache/
Flash Plugin installed.