Flash player is completely dead for all operating systems as of 2021.
Install the latest version of flash player
These instructions will install the latest version of flash player for Chromium and it will also be updated automatically. In addition to installing flash player for Chromium, it will also install/reinstall Adobe flash player for Firefox, and it will also be updated automatically.
To install the latest version of flash player search the Dash (in Ubuntu releases before 17.10) or the Show Applications dashboard (in Ubuntu 17.10 or later) for Software & Updates and open the Software & Updates window. Click the Other Software tab in the Software & Updates window, and put a check mark in the checkbox to the left of where it says: Canonical Partners.
Software & Updates in Ubuntu 17.10
Click the Close button to close the Software & Updates window.
Open the terminal and type:
sudo apt remove pepperflashplugin-nonfree # remove pepperflashplugin-nonfree if it's installed
sudo apt update
sudo apt install adobe-flashplugin
sudo apt install browser-plugin-freshplayer-pepperflash # 16.04 and later
Original answer
Don't use the instructions under this heading anymore because they are obsolete. Follow the updated "Install the latest version of flash player" instructions instead.
I found something that says Google's Chrome Browser should do the job (using a "pepper-based version"), and for Chromium there is an ppa.
There is no need to add a PPA to your software sources to install Pepper Flash Player 15 in the latest version of Chromium web browser from the Ubuntu Software Center.
In Ubuntu 14.04 and onward, Pepper Flash Player can be installed using the Ubuntu Software Center.
If a more recent version of Pepper Flash Player has been released and you want to update Pepper Flash Player to the latest version, you can do this from the terminal using the following command:
sudo update-pepperflashplugin-nonfree --install
Pepper Flash Player cannot be updated with the following command anymore on 32-bit OSs since Google ended support for Chrome on 32-bit Linux in March, 2016. If you are using Ubuntu 32-bit were using Ubuntu 32-bit before March, 2016, you can update Pepper Flash Player to the latest version from the terminal using the following command:
sudo update-pepperflashplugin-nonfree:i386 --install
Either of these two commands will download the latest version of Google Chrome (the file is larger than 40MB) and then update only the Pepper Flash Player with the more recent version of Pepper Flash Player that is bundled with Google Chrome without installing Google Chrome.
If updating Pepper Flash Player to the latest version fails with an error like this:
ERROR: failed to retrieve status information from google : W: There is no public key available for the following key IDs:
1397BC53640DB551
It happens because Google changed its signing key. To fix it run the following commands:
gpg --keyserver pgp.mit.edu --recv-keys 1397BC53640DB551
gpg --export --armor 1397BC53640DB551 | sudo sh -c 'cat >> /usr/lib/pepperflashplugin-nonfree/pubkey-google.txt'
...and then try to update Pepper Flash Player to the latest version again.
Best Answer
Pepper Flash Player is built-in with Google Chrome web browser, so it doesn't need to be installed separately. Google Chrome can play flash videos without installing any other software. Pepper Flash Player is not built-in with Chromium web browser, so it must be installed separately. Pepper Flash Player in Chromium is the same as the built-in flash player that Google Chrome uses.
To install Pepper Flash Player for Chromium in Ubuntu 12.04, open the terminal and type:
In order to configure Chromium to use Pepper Flash Player, open
/etc/chromium-browser/default
from the terminal in nano text editor using the commandsudo nano /etc/chromium-browser/default
and add the following line to the end of the file on a new line:Press the keyboard combination Ctrl+O and after that press Enter to save the file being edited. Press the keyboard combination Ctrl+X to exit nano.
Restart Chromium, and load the
chrome://plugins
page to verify that the plugin is active.