Quick fix for Linux Chrome based browsers
Error: Google Chrome - couldn't load plugin - shockwave flash
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Remove directory:
~/.config/google-chrome/PepperFlash
[ /home/USERnameHERE/.config/google-chrome/PepperFlash ]
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[1] Open Terminal
[2] Change Directory, by typing then pressing enter:
cd ~/.config/google-chrome/
[3] Backup, type then press enter:
tar cvf PepperFlash.tar PepperFlash
[4] Remove " PepperFlash " Dir, type then press enter:
rm -rf PepperFlash
[5] Restart Chrome
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See also: http://ubuntuforums.org/showthread.php?t=2111411