After upgrade to latest version flash is not workning in firefox

Thank you for your bug report. Please open about:plugins amd save it as a file than attach it to this bug report please.

Same here. The problem seems to be that a previous version of the plugin was still in cache (presumably from 9.0.31), and the installer decided to use that instead of downloading the current version:

Unpacking replacement flashplugin-nonfree ...
Setting up flashplugin-nonfree (9.0.48.0.0ubuntu1~7.04.0) ...
Installing from local file /var/cache/flashplugin-nonfree/install_flash_player_9_linux.tar.gz
md5sum mismatch install_flash_player_9_linux.tar.gz
The Flash plugin is NOT installed.

Removing /var/cache/flashplugin-nonfree/install_flash_player_9_linux.tar.gz and reinstalling flashplugin-nonfree fixed this for me. But anyone using Update Manager probably wouldn't even have noticed that anything went wrong during installation...

can you both please remove flash from system (sudo apt-get remove --purge flashplugin-nonfree) than reinstall it with (sudo apt-get install flashplugin-nonfree) Than make sure you restart all browsers that are open. Than please update this bug with new info on if it works or doesnt work.

What's the output from `dpkg -l flashplugin-nonfree|grep ^ii`

This is likely a dup of bug # 125989 but would like info on it first.

The ubuntu1 feisty backport is broken, because it is a backport of the gutsy ubuntu1 that failed to update debian/config. I've already fixed this in gutsy's ubuntu2 (yesterday); it simply needs to be backported to feisty.

I can just confirm that it is now working after reinstalling flashplugin according to above! Thanks!

martin what version of flashplugin-nonfree did it install? to find thsi our run apt-cache policy flashplugin-nonfree

This is the info I get out of apt-cache policy flashplugin-nonfree

flashplugin-nonfree:
  Installerad: 9.0.48.0.0ubuntu1~7.04.0
  Kandidat: 9.0.48.0.0ubuntu1~7.04.0
  Versionstabell:
 *** 9.0.48.0.0ubuntu1~7.04.0 0
        500 http://archive.ubuntu.com feisty-proposed/multiverse Packages
        100 /var/lib/dpkg/status
     9.0.31.0.2ubuntu1 0
        500 http://archive.ubuntu.com feisty/multiverse Packages