As indicated by the comments in Mozilla Firefox 13.0.1 Addresses Adobe Flash Crashes, the Firefox update did not solve all of the problems people who use the "Plug-in Version" (non-IE) have been having with Adobe Flash Player since the update to include Protected Mode (“sandboxing”)
Thanks to ky331 who reported:
I recommend the direct download link for the update since it does not include the unnecessary, pre-checked optional McAfee Security Scan Plus scan. Alternatively, the update is available at the Adobe Flash Player Download Center.
- Non-IE (Opera, Firefox, Etc.): http://download.macromedia.com/get/flashplayer/current/licensing/win/install_flash_player_11_plugin.exe
- Flash Player Uninstaller: http://download.macromedia.com/get/flashplayer/current/support/uninstall_flash_player.exe