I installed flash for mozilla firefox, via ubuntu software center and via terminal. I have mozilla, chromium and google chrome installed and flash content is not showed. For example i go to youtube and the flash player remains white as the background and nothing happen. I want to use Google Chrome, so there i get 'Could not load Shockwave flash'.I searched some solutions and i found that i have to delete ~/.config/google-chrome/PepperFlash.Some users succeded.But i stil have this error.I rebooted the system and now google chrome crashes frequently.
Try installing flash this way. Just press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the command(s) below: