Ubuntu 14.04 WebBrowser.app Not Seeing Flash – Solution

I am just guessing here since Flash Player is a buggy binary blob – but high CPU load could mean that Flash Player is not using hardware acceleration. So, go to any YouTube video, open it in fullscreen (this is important due to weird bug in Flash Player in case you're using Unity 3D / Compiz), right click on video, select Settings… and make sure that Enable hardware acceleration is checked.

You could also try to delete Flash player's settings, you may however lose some "important" data like checkpoints in Flash games (data exclusively stored by Flash Player). Quit browser and delete/move away ~/.macromedia/Flash_Player directory with Nautilus or using this command:

rm -r ~/.macromedia/Flash_Player

Also take a look if you have libvdpau1 package installed, this allows video players to use hardware video decoding. Flash Player uses this to some extent too, but it's buggy (under some conditions, videos on YouTube may have swapped blue and red colour channels). See this answer for more details.

Sorry there is no fix for this. The latest Flash version provided by Adobe for Linux is 11.2. And pogo.com requires >11.7

As a workaround you could install a Windows version of e.g. Firefox in Wine or in a VM and use Flash for Windows with that. But that's quite ugly. I'd rather look for alternative websites/games.

Edit: Install Chromium with Pepper Flash

Open a Terminal with CTRL+ALT+T and type:

sudo add-apt-repository ppa:skunk/pepper-flash
sudo apt-get update
sudo apt-get install chromium-browser pepflashplugin-installer
echo ". /usr/lib/pepflashplugin-installer/pepflashplayer.sh" | sudo tee -a /etc/chromium-browser/default

Now open Chrome and go to chrome://plugins. If everything was correct you should see now Adobe Flash Player - Version: 11.8.XXX