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My Adobe Flash plugin has stopped working on Ubuntu 12.04. I cannot see any videos. When I try to install it again, the following things appear on my terminal:

root@ubuntu:/home/salty# sudo apt-get install adobe-flashplugin
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package adobe-flashplugin is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'adobe-flashplugin' has no installation candidate
root@ubuntu:/home/salty# 

What should I do now?

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  • There is a mistake in the third line. It should say: sudo apt-get install flashplugin-installer (I can't add comments because I don't have at least 50 reputation, so I wrote it as an answer.)
    – laur34
    Sep 6, 2014 at 14:33

5 Answers 5

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Open the file /etc/apt/sources.list with a text editor. Uncomment (Remove the preceeding #) on the lines:

deb http://archive.canonical.com/ubuntu trusty partner
deb-src http://archive.canonical.com/ubuntu trusty partner

In Ubuntu 16.04, this worked:

deb http://archive.canonical.com/ubuntu xenial partner
deb-src http://archive.canonical.com/ubuntu xenial partner

In the terminal, run

sudo apt-get update
sudo apt-get install adobe-flashplugin
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Installation steps of flash plugins

Step 1: Add following line in sources.list (sudo nano /etc/apt/sources.list)

   deb http://security.ubuntu.com/ubuntu lucid-security main multiverse

Step 2: Update apt-get

   sudo apt-get update

Step 3: install flash-plugin

   sudo apt-get install flashplugin-installer
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  • This finally worked on 14.04 LTS. Thanks
    – John
    Mar 3, 2015 at 10:57
0

Enter

sudo apt-get update && sudo apt-get ugrade && sudo apt-get install flashplugin-installer

After that, you should have a functional Flash for your browser.

And please don't work as root! Do the commands given from your normal user account.

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  • root@ubuntu:/home/salty# sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. root@ubuntu:/home/salty# sudo apt-get flashplugin-installer E: Invalid operation flashplugin-installer Mar 2, 2013 at 9:55
  • 1
    Try from a normal user account. You should not be using root.
    – user25656
    Mar 2, 2013 at 9:57
  • @LovelySinha de exit command to return normal user
    – Thomas15v
    Mar 2, 2013 at 11:40
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flashplugin-installer is for the 32-bit version.

On 64-bit you should use adobe-flashplugin! This article has the solution:

  1. Open Software & Updates
  2. Go to Other Software
  3. Select the two Canonical Partners options
  4. sudo apt-get update
  5. sudo apt-get purge adobe-flash{plugin,-properties-gtk}
  6. sudo apt-get install adobe-flashplugin

I've tested this on Ubuntu 14.04 64-bit.

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In Ubuntu 16.04 this worked for me:

$ sudo vi /etc/apt/sources.list

     48 deb http://archive.canonical.com/ubuntu xenial partner
     49 deb-src http://archive.canonical.com/ubuntu xenial partner

$ sudo apt-get update
$ sudo apt-get install adobe-flashplugin

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