There are two reasons flashplugin might be detected as outdated:
The file or site asks for features not present in the 11.2 series. Nothing can be done to use flashplugin for those.
------ or -------
The site or your browser has detected an old, vulnerable version of flashplugin and has disabled it.
"Old" here can mean "came out three days ago" in the current secruity environment.
11.2.x still gets security upgrades, and updating it can help with this second case.
Flashplugin security upgrades are extremely frequent now; next to impossible for packagers to keep up with. It's still best to use packages from our repos, but if you need a flashplugin update sooner than that, here's one way:
user:$ mkdir -p flashplugin/src
user:$ cd flashplugin/src
user:$ cp /usr/doc/flashplugin-<TAB>/flashplugin.SlackBuild ./ # /usr/doc/flashplugin/220.127.116.116/flashplugin.SlackBuild for example
user:$ su -lm
root:# VERSION=18.104.22.1685 sh ./flashplugin.SlackBuild # visit https://get.adobe.com/flashplayer/ to see the latest version number for linux
Running the SlackBuild script will fetch the plugin and package it up. You'll need to be connected for the above, of course.
Once it's packaged, install the package:
root:# installpkg ../flashplugin-<TAB> # such as ../flashplugin-22.214.171.1245-i586-1vl71.txz
Now restart your browser and try that site again.
This issue is very irritating for everyone
using a linux and wishing to play flash files. Asking about it here? Cool. Cranking up several threads on it, crossposting, and tagging on to old threads? Rude.