How do I install Adobe Flash player?

For 11.04 and earlier:

Are you installing it from the Ubuntu Software Center?

1. Go to Applications->Ubuntu Software Center.
2. Click on Canonical Partners
3. Click the Adobe Flash Plugin 11 and click install.

Note: this is the method I use on my 64-bit Ubuntu install and it has yet to fail me.

For 11.10 and later

Start Software Center from the Launcher and search for flash

Two entries will be found. The first is the wrapper around the 32bit flash version from Adobe. The second is the 64bit flash version.

Select the second flash entry - if the following picture is seen then you have not already enabled the Canonical Partner Repository previously.

Click More Info

... and click Use this source to enable the Canonical Partner Repository

see the end of this answer for the bug-report

Click Install

Click the Install button and enter your password when prompted. Note - you must have permission to install software.

The installation will proceed:

Once complete - launch Firefox and browse to your Flash Video. Right click and confirm that the latest version of Flash has been installed correctly.

Note - pictures subject to change - the 64bit version has only been recently packaged in the last week before Oneiric release - One issue currently exists:

1. https://bugs.launchpad.net/ubuntu/+source/flashplugin-nonfree/+bug/870835

In the interim - either use the first "Multiverse" 32bit plugin in the pictures above or use adobe-flashplugin

sudo apt-get install adobe-flashplugin

This is how to install Adobe Flash Plugin for Firefox:

1. Go to this page and select the option .tar.gz for other Linux. Download the file.
2. Unpack the plugin tar.gz and copy the files to the appropriate location.
3. Save the plugin tar.gz locally and note the location the file was saved to.
4. Launch terminal and change directories to the location the file was saved to.

5. Unpack the tar.gz file. Once unpacked you will see the following:

   • libflashplayer.so
   • /usr

6. Identify the location of the browser plugins directory, based on your Linux distribution and Firefox version.(Usually it is /usr/lib/mozilla/plugins/)
   For ubuntu 14.04 path is : /usr/lib/firefox/browser/plugins

7. Copy libflashplayer.so to the appropriate browser plugins directory. At the prompt type:

   sudo cp libflashplayer.so <BrowserPluginsLocation>
   

8. Copy the Flash Player Local Settings configurations files to the /usr directory. At the prompt type:

   sudo cp -r usr/* /usr
   

9. Now restart your browser.