Firefox says that my Flash software is outdated and therefore vulnerable and automatically deactivates the software. When Firefox recognizes that I'm visiting a page that uses Flash for something it will give me a grey (typically) diagonally striped screen in the place where the Flash would be used with the option of "activating" Flash. But sometimes there are items on webpages that used to show up (and I guess use Flash) that, since this problem started, I can't see. It's also kind of a nuisance to have to activate it each time. But, ultimately, it's somewhat worrying that I've downloaded and installed the latest version of Flash a couple of times and it's still doing this. I'm not really sure what else to do. Some background on what I'm working with. I'm running Firefox 23.0 and the "About Firefox" screen says I'm up to date. I'm running Mac OS X 10.6.8. When I go to the add-on page for Firefox, it tells me that the version of "Shockwave Flash" is 11.4.402.265. The package that I've downloaded and installed from the Adobe website is here: http://get.adobe.com/flashplayer/completion/?installer=Flash_Player_11_for_Mac_OS_X_10.6_-_10.9. Any thoughts?