I often cycle through my Firefox tabs using Ctrl+Tab and Ctrl+Shift+Tab. But whenever it reaches a tab that is running a Flash (or similar) plugin, Ctrl+Tab and Ctrl+Shift+Tab won't work anymore, because Flash has the focus and overwrites the general keybindings. I have to stop and click outside of the Flash app to continue the cycling.

Basically, I hate that Flash hijacks the keyboard focus. I never use it anyway, i.e. I never use the keyboard to control certain elements within the Flash app. Can I turn it off, meaning, can I tell Flash not to overwrite Firefox' keyboard bindings?