To my C:\Windows\SysWOW64\Macromed\Flash\mms.cfg file to disable Flash Player Protected Mode. Update: Per the troubleshooting instructions at, I was able to eliminate the problem by adding the line
Since Adobe shipped an update to Flash Player to 11.3 two weeks ago, users of Firefox, including older editions as well as the current Firefox 13, had. If I close FF and launch it as user Bob (shift+right-click Firefox Shortcut, choose "Run as different user"), the problem will appear. Adobe has released a fix for the Flash Player generated crashes in Firefox attributed to the Flash Player update released two weeks ago. I hate tabs and dont use them, so I would like to see the problem go away. If theres an activate event for the plugin in firefox, and if its a new window, the window could be made active again. The timer needs to fire after the flash plugin becomes active. For example, if I log onto Windows with user account Adam and launch FF normally, the problem does not exist. A value could be put in nfig to adjust the delay. The plugin does not crash when Firefox is running under the same account that is logged onto Windows interactively - only when running FF as a different user. We need the report numbers to see the whole report. The crash report is several pages of data. It seems the plugin is silently crashing - I'm not alerted to a plugin crash in any way (no dialog or yellow "Flash player crashed" notice at the top of the window), but after FF hangs I will see a new crash report entry in the FF about:crashes list. In order to assist you better, please follow the steps below to provide us crash IDs to help us learn more about your crash. Disabling the Flash plugin eliminates the problem. When Firefox becomes responsive again, scrolling a page with Flash content will cause the app to hang again. After upgrading my Flash plugin to v11 (11.8.800.94), the browser will hang for several minutes when visiting any page that contains Flash content.
I often start Firefox in Windows 7 (圆4) using the "Run as different user" mechanism.