There is a problem with the latest Flash plugin. The solution for Flash crashes is to downgrade to an earlier version of Flash. Instructions and more details are in this article - Adobe Flash plugin has crashed - Prevent it from happening again

The "latest" version was just released this morning.
http://helpx.adobe.com/flash-player/release-note/enduser-release-notes-11_3.html

In Firefox you need version 11.3.300.262 of Adobe Flash Player. Once installed, right click a loaded flash video and select "global settings." Select "advanced" tab. Select "delete all" from the browsing data and settings. I got this from Adobe's site and it worked in my version of Firefox on Windows 7.

Better still go back to version 10. Uninstall the 11 and run version 10 Flash player. I have all of my flash functions back now even at the Facebook page.

Hello Guys many thanks for your helpful replies..in the ned I just restarted pc and FF is now reporting all plugins up to date.

hope this is not a stupid quaetion but the only adobe ff plugin I have is Flash

should I have others?

I use open source where ever possible so do not use adobe reader e.t.c.

cheers Steve

You are right. Tried all of these other fixes and clearing the cache in Seamonkey got it to work but with Firefox the only solution I could get was to uninstall the Flash 11 and go back to 10.3.

FF14 is working fine with latest flash plug in

don`t know what changed but all ok