Created attachment 636959 [details]
When switching tabs, a Flash player displays artifacts from other tabs. See attachment for a screenshot. Look at the bottom of the player -- you may see content from another tab (with this URL: http://www.adobe.com/software/flash/about/).
Using version 16.0a1 (2012-06-26), but the problem seems to have started a number of days ago.
Note that I upgraded the Flash player a few days ago.
Its version is now 11,3,300,262.
Another detail: I've noticed that Flash players now steal keyboard events. I think this started at about the same time I upgraded the player. And the player is now running as a separate process (FlashPlayerPlugin_11_3_300_262.exe).
That is a flash player issue with the protected mode that came with new flash plugin. Disable the protected mode in flash and test.
The focus stealing is already reported by people to the Adobe Bug database.
Has the other problem been reported to Adobe too?
(In reply to Roman R. from comment #4)
> Has the other problem been reported to Adobe too?
I can answer my own question here: yes, it has (https://bugbase.adobe.com/index.cfm?event=bug&id=3223393)
Roman, do you still see this?