Adobe Flash 11.4 Installed on pc, but doesn't appear in plugin add-on list. flash or youtube videos won't play

Hi
I updated to the latest flash player 11.4.402.287 today, both the activex or plugin versions appear in the flash manager. However, I am unable to play flash videos in youtube, the bar at the top indicates "Install missing plugin" I have repeated the installation process, it does appear to complete successfully, but again when attempting to play youtube videos the "install missing plugin appears" and videos will not play.
I have also installed and re-installed the latest version of firefox today, thought that may help, seem to have the same problem. The flash player isn't listed in the plugin add on list. I'm not sure what else to do or what the problem could be.
I would appreciate any advice, please

H Shaun, <br/>I am using Ubuntu at the moment. I am not sure if the Adobe installer recognises you are on a 32 bit browser and even if it does it presumably allows you a choice, but why not just check and ensure it is a 32 bit version you have installed; and if in doubt uninstall and reinstall.
If Flash is installed and suitable for Firefox it should show as a [https://developer.mozilla.org/en-US/docs/Gecko_Plugin_API_Reference/Plug-in_Basics#How_Gecko_finds_plug-ins listed] plugin so if it does not show something has gone wrong, and there can be little expectation of Flash working in Firefox.
John

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